Get input token counts
Get input token counts
ParametersExpand Collapse
The conversation that this response belongs to. Items from this conversation are prepended to input_items for this response request.
Input items and output items from this response are automatically added to this conversation after this response completes.
The conversation that this response belongs to. Items from this conversation are prepended to input_items for this response request.
Input items and output items from this response are automatically added to this conversation after this response completes.
The unique ID of the conversation.
class ResponseConversationParam: …The conversation that this response belongs to.
The conversation that this response belongs to.
The unique ID of the conversation.
Text, image, or file inputs to the model, used to generate a response
Text, image, or file inputs to the model, used to generate a response
A text input to the model, equivalent to a text input with the user role.
Iterable[ResponseInputItemParam]A list of one or many input items to the model, containing different content types.
A list of one or many input items to the model, containing different content types.
class EasyInputMessage: …A message input to the model with a role indicating instruction following
hierarchy. Instructions given with the developer or system role take
precedence over instructions given with the user role. Messages with the
assistant role are presumed to have been generated by the model in previous
interactions.
A message input to the model with a role indicating instruction following
hierarchy. Instructions given with the developer or system role take
precedence over instructions given with the user role. Messages with the
assistant role are presumed to have been generated by the model in previous
interactions.
Text, image, or audio input to the model, used to generate a response.
Can also contain previous assistant responses.
Text, image, or audio input to the model, used to generate a response. Can also contain previous assistant responses.
A text input to the model.
List[ResponseInputContent]
class ResponseInputText: …A text input to the model.
A text input to the model.
The text input to the model.
The type of the input item. Always input_text.
class ResponseInputImage: …An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
detail: Literal["low", "high", "auto"]The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The type of the input item. Always input_image.
The ID of the file to be sent to the model.
The URL of the image to be sent to the model. A fully qualified URL or base64 encoded image in a data URL.
class ResponseInputFile: …A file input to the model.
A file input to the model.
The type of the input item. Always input_file.
The content of the file to be sent to the model.
The ID of the file to be sent to the model.
The URL of the file to be sent to the model.
The name of the file to be sent to the model.
role: Literal["user", "assistant", "system", "developer"]The role of the message input. One of user, assistant, system, or
developer.
The role of the message input. One of user, assistant, system, or
developer.
The type of the message input. Always message.
class Message: …A message input to the model with a role indicating instruction following
hierarchy. Instructions given with the developer or system role take
precedence over instructions given with the user role.
A message input to the model with a role indicating instruction following
hierarchy. Instructions given with the developer or system role take
precedence over instructions given with the user role.
A list of one or many input items to the model, containing different content
types.
A list of one or many input items to the model, containing different content types.
class ResponseInputText: …A text input to the model.
A text input to the model.
The text input to the model.
The type of the input item. Always input_text.
class ResponseInputImage: …An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
detail: Literal["low", "high", "auto"]The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The type of the input item. Always input_image.
The ID of the file to be sent to the model.
The URL of the image to be sent to the model. A fully qualified URL or base64 encoded image in a data URL.
class ResponseInputFile: …A file input to the model.
A file input to the model.
The type of the input item. Always input_file.
The content of the file to be sent to the model.
The ID of the file to be sent to the model.
The URL of the file to be sent to the model.
The name of the file to be sent to the model.
role: Literal["user", "system", "developer"]The role of the message input. One of user, system, or developer.
The role of the message input. One of user, system, or developer.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The status of item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The type of the message input. Always set to message.
class ResponseOutputMessage: …An output message from the model.
An output message from the model.
The unique ID of the output message.
content: List[Content]The content of the output message.
The content of the output message.
class ResponseOutputText: …A text output from the model.
A text output from the model.
annotations: List[Annotation]The annotations of the text output.
The annotations of the text output.
class AnnotationFileCitation: …A citation to a file.
A citation to a file.
The ID of the file.
The filename of the file cited.
The index of the file in the list of files.
The type of the file citation. Always file_citation.
class AnnotationURLCitation: …A citation for a web resource used to generate a model response.
A citation for a web resource used to generate a model response.
The index of the last character of the URL citation in the message.
The index of the first character of the URL citation in the message.
The title of the web resource.
The type of the URL citation. Always url_citation.
The URL of the web resource.
class AnnotationContainerFileCitation: …A citation for a container file used to generate a model response.
A citation for a container file used to generate a model response.
The ID of the container file.
The index of the last character of the container file citation in the message.
The ID of the file.
The filename of the container file cited.
The index of the first character of the container file citation in the message.
The type of the container file citation. Always container_file_citation.
class AnnotationFilePath: …A path to a file.
A path to a file.
The ID of the file.
The index of the file in the list of files.
The type of the file path. Always file_path.
The text output from the model.
The type of the output text. Always output_text.
logprobs: Optional[List[Logprob]]
top_logprobs: List[LogprobTopLogprob]
class ResponseOutputRefusal: …A refusal from the model.
A refusal from the model.
The refusal explanation from the model.
The type of the refusal. Always refusal.
The role of the output message. Always assistant.
status: Literal["in_progress", "completed", "incomplete"]The status of the message input. One of in_progress, completed, or
incomplete. Populated when input items are returned via API.
The status of the message input. One of in_progress, completed, or
incomplete. Populated when input items are returned via API.
The type of the output message. Always message.
class ResponseFileSearchToolCall: …The results of a file search tool call. See the
file search guide for more information.
The results of a file search tool call. See the file search guide for more information.
The unique ID of the file search tool call.
The queries used to search for files.
status: Literal["in_progress", "searching", "completed", 2 more]The status of the file search tool call. One of in_progress,
searching, incomplete or failed,
The status of the file search tool call. One of in_progress,
searching, incomplete or failed,
The type of the file search tool call. Always file_search_call.
results: Optional[List[Result]]The results of the file search tool call.
The results of the file search tool call.
attributes: Optional[Dict[str, Union[str, float, bool]]]Set of 16 key-value pairs that can be attached to an object. This can be
useful for storing additional information about the object in a structured
format, and querying for objects via API or the dashboard. Keys are strings
with a maximum length of 64 characters. Values are strings with a maximum
length of 512 characters, booleans, or numbers.
Set of 16 key-value pairs that can be attached to an object. This can be useful for storing additional information about the object in a structured format, and querying for objects via API or the dashboard. Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters, booleans, or numbers.
The unique ID of the file.
The name of the file.
The relevance score of the file - a value between 0 and 1.
The text that was retrieved from the file.
class ResponseComputerToolCall: …A tool call to a computer use tool. See the
computer use guide for more information.
A tool call to a computer use tool. See the computer use guide for more information.
The unique ID of the computer call.
action: ActionA click action.
A click action.
class ActionClick: …A click action.
A click action.
button: Literal["left", "right", "wheel", 2 more]Indicates which mouse button was pressed during the click. One of left, right, wheel, back, or forward.
Indicates which mouse button was pressed during the click. One of left, right, wheel, back, or forward.
Specifies the event type. For a click action, this property is always click.
The x-coordinate where the click occurred.
The y-coordinate where the click occurred.
class ActionDoubleClick: …A double click action.
A double click action.
Specifies the event type. For a double click action, this property is always set to double_click.
The x-coordinate where the double click occurred.
The y-coordinate where the double click occurred.
class ActionDrag: …A drag action.
A drag action.
path: List[ActionDragPath]An array of coordinates representing the path of the drag action. Coordinates will appear as an array of objects, eg
[
{ x: 100, y: 200 },
{ x: 200, y: 300 }
]
An array of coordinates representing the path of the drag action. Coordinates will appear as an array of objects, eg
[
{ x: 100, y: 200 },
{ x: 200, y: 300 }
]The x-coordinate.
The y-coordinate.
Specifies the event type. For a drag action, this property is always set to drag.
class ActionKeypress: …A collection of keypresses the model would like to perform.
A collection of keypresses the model would like to perform.
The combination of keys the model is requesting to be pressed. This is an array of strings, each representing a key.
Specifies the event type. For a keypress action, this property is always set to keypress.
class ActionMove: …A mouse move action.
A mouse move action.
Specifies the event type. For a move action, this property is always set to move.
The x-coordinate to move to.
The y-coordinate to move to.
class ActionScreenshot: …A screenshot action.
A screenshot action.
Specifies the event type. For a screenshot action, this property is always set to screenshot.
class ActionScroll: …A scroll action.
A scroll action.
The horizontal scroll distance.
The vertical scroll distance.
Specifies the event type. For a scroll action, this property is always set to scroll.
The x-coordinate where the scroll occurred.
The y-coordinate where the scroll occurred.
class ActionType: …An action to type in text.
An action to type in text.
The text to type.
Specifies the event type. For a type action, this property is always set to type.
class ActionWait: …A wait action.
A wait action.
Specifies the event type. For a wait action, this property is always set to wait.
An identifier used when responding to the tool call with output.
pending_safety_checks: List[PendingSafetyCheck]The pending safety checks for the computer call.
The pending safety checks for the computer call.
The ID of the pending safety check.
The type of the pending safety check.
Details about the pending safety check.
status: Literal["in_progress", "completed", "incomplete"]The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The type of the computer call. Always computer_call.
class ComputerCallOutput: …The output of a computer tool call.
The output of a computer tool call.
The ID of the computer tool call that produced the output.
A computer screenshot image used with the computer use tool.
A computer screenshot image used with the computer use tool.
Specifies the event type. For a computer screenshot, this property is
always set to computer_screenshot.
The identifier of an uploaded file that contains the screenshot.
The URL of the screenshot image.
The type of the computer tool call output. Always computer_call_output.
The ID of the computer tool call output.
acknowledged_safety_checks: Optional[List[ComputerCallOutputAcknowledgedSafetyCheck]]The safety checks reported by the API that have been acknowledged by the developer.
The safety checks reported by the API that have been acknowledged by the developer.
The ID of the pending safety check.
The type of the pending safety check.
Details about the pending safety check.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the message input. One of in_progress, completed, or incomplete. Populated when input items are returned via API.
The status of the message input. One of in_progress, completed, or incomplete. Populated when input items are returned via API.
class ResponseFunctionWebSearch: …The results of a web search tool call. See the
web search guide for more information.
The results of a web search tool call. See the web search guide for more information.
The unique ID of the web search tool call.
action: ActionAn object describing the specific action taken in this web search call.
Includes details on how the model used the web (search, open_page, find_in_page).
An object describing the specific action taken in this web search call. Includes details on how the model used the web (search, open_page, find_in_page).
class ActionSearch: …Action type "search" - Performs a web search query.
Action type "search" - Performs a web search query.
[DEPRECATED] The search query.
The action type.
The search queries.
sources: Optional[List[ActionSearchSource]]The sources used in the search.
The sources used in the search.
The type of source. Always url.
The URL of the source.
class ActionOpenPage: …Action type "open_page" - Opens a specific URL from search results.
Action type "open_page" - Opens a specific URL from search results.
The action type.
The URL opened by the model.
class ActionFindInPage: …Action type "find_in_page": Searches for a pattern within a loaded page.
Action type "find_in_page": Searches for a pattern within a loaded page.
The pattern or text to search for within the page.
The action type.
The URL of the page searched for the pattern.
status: Literal["in_progress", "searching", "completed", "failed"]The status of the web search tool call.
The status of the web search tool call.
The type of the web search tool call. Always web_search_call.
class ResponseFunctionToolCall: …A tool call to run a function. See the
function calling guide for more information.
A tool call to run a function. See the function calling guide for more information.
A JSON string of the arguments to pass to the function.
The unique ID of the function tool call generated by the model.
The name of the function to run.
The type of the function tool call. Always function_call.
The unique ID of the function tool call.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
class FunctionCallOutput: …The output of a function tool call.
The output of a function tool call.
The unique ID of the function tool call generated by the model.
Text, image, or file output of the function tool call.
Text, image, or file output of the function tool call.
A JSON string of the output of the function tool call.
class ResponseInputTextContent: …A text input to the model.
A text input to the model.
The text input to the model.
The type of the input item. Always input_text.
class ResponseInputImageContent: …An image input to the model. Learn about image inputs
An image input to the model. Learn about image inputs
The type of the input item. Always input_image.
detail: Optional[Literal["low", "high", "auto"]]The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The ID of the file to be sent to the model.
The URL of the image to be sent to the model. A fully qualified URL or base64 encoded image in a data URL.
class ResponseInputFileContent: …A file input to the model.
A file input to the model.
The type of the input item. Always input_file.
The base64-encoded data of the file to be sent to the model.
The ID of the file to be sent to the model.
The URL of the file to be sent to the model.
The name of the file to be sent to the model.
The type of the function tool call output. Always function_call_output.
The unique ID of the function tool call output. Populated when this item is returned via API.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the item. One of in_progress, completed, or incomplete. Populated when items are returned via API.
The status of the item. One of in_progress, completed, or incomplete. Populated when items are returned via API.
class ResponseReasoningItem: …A description of the chain of thought used by a reasoning model while generating
a response. Be sure to include these items in your input to the Responses API
for subsequent turns of a conversation if you are manually
managing context.
A description of the chain of thought used by a reasoning model while generating
a response. Be sure to include these items in your input to the Responses API
for subsequent turns of a conversation if you are manually
managing context.
The unique identifier of the reasoning content.
summary: List[Summary]Reasoning summary content.
Reasoning summary content.
A summary of the reasoning output from the model so far.
The type of the object. Always summary_text.
The type of the object. Always reasoning.
content: Optional[List[Content]]Reasoning text content.
Reasoning text content.
The reasoning text from the model.
The type of the reasoning text. Always reasoning_text.
The encrypted content of the reasoning item - populated when a response is
generated with reasoning.encrypted_content in the include parameter.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
The status of the item. One of in_progress, completed, or
incomplete. Populated when items are returned via API.
class ResponseCompactionItemParam: …A compaction item generated by the v1/responses/compact API.
A compaction item generated by the v1/responses/compact API.
The encrypted content of the compaction summary.
The type of the item. Always compaction.
The ID of the compaction item.
class ImageGenerationCall: …An image generation request made by the model.
An image generation request made by the model.
The unique ID of the image generation call.
The generated image encoded in base64.
status: Literal["in_progress", "completed", "generating", "failed"]The status of the image generation call.
The status of the image generation call.
The type of the image generation call. Always image_generation_call.
class ResponseCodeInterpreterToolCall: …A tool call to run code.
A tool call to run code.
The unique ID of the code interpreter tool call.
The code to run, or null if not available.
The ID of the container used to run the code.
outputs: Optional[List[Output]]The outputs generated by the code interpreter, such as logs or images.
Can be null if no outputs are available.
The outputs generated by the code interpreter, such as logs or images. Can be null if no outputs are available.
class OutputLogs: …The logs output from the code interpreter.
The logs output from the code interpreter.
The logs output from the code interpreter.
The type of the output. Always logs.
class OutputImage: …The image output from the code interpreter.
The image output from the code interpreter.
The type of the output. Always image.
The URL of the image output from the code interpreter.
status: Literal["in_progress", "completed", "incomplete", 2 more]The status of the code interpreter tool call. Valid values are in_progress, completed, incomplete, interpreting, and failed.
The status of the code interpreter tool call. Valid values are in_progress, completed, incomplete, interpreting, and failed.
The type of the code interpreter tool call. Always code_interpreter_call.
class LocalShellCall: …A tool call to run a command on the local shell.
A tool call to run a command on the local shell.
The unique ID of the local shell call.
action: LocalShellCallActionExecute a shell command on the server.
Execute a shell command on the server.
The command to run.
Environment variables to set for the command.
The type of the local shell action. Always exec.
Optional timeout in milliseconds for the command.
Optional user to run the command as.
Optional working directory to run the command in.
The unique ID of the local shell tool call generated by the model.
status: Literal["in_progress", "completed", "incomplete"]The status of the local shell call.
The status of the local shell call.
The type of the local shell call. Always local_shell_call.
class LocalShellCallOutput: …The output of a local shell tool call.
The output of a local shell tool call.
The unique ID of the local shell tool call generated by the model.
A JSON string of the output of the local shell tool call.
The type of the local shell tool call output. Always local_shell_call_output.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the item. One of in_progress, completed, or incomplete.
The status of the item. One of in_progress, completed, or incomplete.
class ShellCall: …A tool representing a request to execute one or more shell commands.
A tool representing a request to execute one or more shell commands.
action: ShellCallActionThe shell commands and limits that describe how to run the tool call.
The shell commands and limits that describe how to run the tool call.
Ordered shell commands for the execution environment to run.
Maximum number of UTF-8 characters to capture from combined stdout and stderr output.
Maximum wall-clock time in milliseconds to allow the shell commands to run.
The unique ID of the shell tool call generated by the model.
The type of the item. Always shell_call.
The unique ID of the shell tool call. Populated when this item is returned via API.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the shell call. One of in_progress, completed, or incomplete.
The status of the shell call. One of in_progress, completed, or incomplete.
class ShellCallOutput: …The streamed output items emitted by a shell tool call.
The streamed output items emitted by a shell tool call.
The unique ID of the shell tool call generated by the model.
Captured chunks of stdout and stderr output, along with their associated outcomes.
Captured chunks of stdout and stderr output, along with their associated outcomes.
outcome: OutcomeThe exit or timeout outcome associated with this shell call.
The exit or timeout outcome associated with this shell call.
class OutcomeTimeout: …Indicates that the shell call exceeded its configured time limit.
Indicates that the shell call exceeded its configured time limit.
The outcome type. Always timeout.
class OutcomeExit: …Indicates that the shell commands finished and returned an exit code.
Indicates that the shell commands finished and returned an exit code.
The exit code returned by the shell process.
The outcome type. Always exit.
Captured stderr output for the shell call.
Captured stdout output for the shell call.
The type of the item. Always shell_call_output.
The unique ID of the shell tool call output. Populated when this item is returned via API.
The maximum number of UTF-8 characters captured for this shell call's combined output.
status: Optional[Literal["in_progress", "completed", "incomplete"]]The status of the shell call output.
The status of the shell call output.
class ApplyPatchCall: …A tool call representing a request to create, delete, or update files using diff patches.
A tool call representing a request to create, delete, or update files using diff patches.
The unique ID of the apply patch tool call generated by the model.
operation: ApplyPatchCallOperationThe specific create, delete, or update instruction for the apply_patch tool call.
The specific create, delete, or update instruction for the apply_patch tool call.
class ApplyPatchCallOperationCreateFile: …Instruction for creating a new file via the apply_patch tool.
Instruction for creating a new file via the apply_patch tool.
Unified diff content to apply when creating the file.
Path of the file to create relative to the workspace root.
The operation type. Always create_file.
class ApplyPatchCallOperationDeleteFile: …Instruction for deleting an existing file via the apply_patch tool.
Instruction for deleting an existing file via the apply_patch tool.
Path of the file to delete relative to the workspace root.
The operation type. Always delete_file.
class ApplyPatchCallOperationUpdateFile: …Instruction for updating an existing file via the apply_patch tool.
Instruction for updating an existing file via the apply_patch tool.
Unified diff content to apply to the existing file.
Path of the file to update relative to the workspace root.
The operation type. Always update_file.
status: Literal["in_progress", "completed"]The status of the apply patch tool call. One of in_progress or completed.
The status of the apply patch tool call. One of in_progress or completed.
The type of the item. Always apply_patch_call.
The unique ID of the apply patch tool call. Populated when this item is returned via API.
class ApplyPatchCallOutput: …The streamed output emitted by an apply patch tool call.
The streamed output emitted by an apply patch tool call.
The unique ID of the apply patch tool call generated by the model.
status: Literal["completed", "failed"]The status of the apply patch tool call output. One of completed or failed.
The status of the apply patch tool call output. One of completed or failed.
The type of the item. Always apply_patch_call_output.
The unique ID of the apply patch tool call output. Populated when this item is returned via API.
Optional human-readable log text from the apply patch tool (e.g., patch results or errors).
class McpListTools: …A list of tools available on an MCP server.
A list of tools available on an MCP server.
The unique ID of the list.
The label of the MCP server.
tools: List[McpListToolsTool]The tools available on the server.
The tools available on the server.
The JSON schema describing the tool's input.
The name of the tool.
Additional annotations about the tool.
The description of the tool.
The type of the item. Always mcp_list_tools.
Error message if the server could not list tools.
class McpApprovalRequest: …A request for human approval of a tool invocation.
A request for human approval of a tool invocation.
The unique ID of the approval request.
A JSON string of arguments for the tool.
The name of the tool to run.
The label of the MCP server making the request.
The type of the item. Always mcp_approval_request.
class McpApprovalResponse: …A response to an MCP approval request.
A response to an MCP approval request.
The ID of the approval request being answered.
Whether the request was approved.
The type of the item. Always mcp_approval_response.
The unique ID of the approval response
Optional reason for the decision.
class McpCall: …An invocation of a tool on an MCP server.
An invocation of a tool on an MCP server.
The unique ID of the tool call.
A JSON string of the arguments passed to the tool.
The name of the tool that was run.
The label of the MCP server running the tool.
The type of the item. Always mcp_call.
Unique identifier for the MCP tool call approval request.
Include this value in a subsequent mcp_approval_response input to approve or reject the corresponding tool call.
The error from the tool call, if any.
The output from the tool call.
status: Optional[Literal["in_progress", "completed", "incomplete", 2 more]]The status of the tool call. One of in_progress, completed, incomplete, calling, or failed.
The status of the tool call. One of in_progress, completed, incomplete, calling, or failed.
class ResponseCustomToolCallOutput: …The output of a custom tool call from your code, being sent back to the model.
The output of a custom tool call from your code, being sent back to the model.
The call ID, used to map this custom tool call output to a custom tool call.
output: Union[str, List[OutputOutputContentList]]The output from the custom tool call generated by your code.
Can be a string or an list of output content.
The output from the custom tool call generated by your code. Can be a string or an list of output content.
A string of the output of the custom tool call.
List[OutputOutputContentList]Text, image, or file output of the custom tool call.
Text, image, or file output of the custom tool call.
class ResponseInputText: …A text input to the model.
A text input to the model.
The text input to the model.
The type of the input item. Always input_text.
class ResponseInputImage: …An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
detail: Literal["low", "high", "auto"]The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The detail level of the image to be sent to the model. One of high, low, or auto. Defaults to auto.
The type of the input item. Always input_image.
The ID of the file to be sent to the model.
The URL of the image to be sent to the model. A fully qualified URL or base64 encoded image in a data URL.
class ResponseInputFile: …A file input to the model.
A file input to the model.
The type of the input item. Always input_file.
The content of the file to be sent to the model.
The ID of the file to be sent to the model.
The URL of the file to be sent to the model.
The name of the file to be sent to the model.
The type of the custom tool call output. Always custom_tool_call_output.
The unique ID of the custom tool call output in the OpenAI platform.
class ResponseCustomToolCall: …A call to a custom tool created by the model.
A call to a custom tool created by the model.
An identifier used to map this custom tool call to a tool call output.
The input for the custom tool call generated by the model.
The name of the custom tool being called.
The type of the custom tool call. Always custom_tool_call.
The unique ID of the custom tool call in the OpenAI platform.
class ItemReference: …An internal identifier for an item to reference.
An internal identifier for an item to reference.
The ID of the item to reference.
The type of item to reference. Always item_reference.
A system (or developer) message inserted into the model's context.
When used along with previous_response_id, the instructions from a previous response will not be carried over to the next response. This makes it simple to swap out system (or developer) messages in new responses.
Model ID used to generate the response, like gpt-4o or o3. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the model guide to browse and compare available models.
Whether to allow the model to run tool calls in parallel.
The unique ID of the previous response to the model. Use this to create multi-turn conversations. Learn more about conversation state. Cannot be used in conjunction with conversation.
reasoning: Optional[Reasoning]gpt-5 and o-series models only Configuration options for reasoning models.
gpt-5 and o-series models only Configuration options for reasoning models.
effort: Optional[ReasoningEffort]Constrains effort on reasoning for
reasoning models.
Currently supported values are none, minimal, low, medium, high, and xhigh. Reducing
reasoning effort can result in faster responses and fewer tokens used
on reasoning in a response.
gpt-5.1 defaults to none, which does not perform reasoning. The supported reasoning values for gpt-5.1 are none, low, medium, and high. Tool calls are supported for all reasoning values in gpt-5.1.- All models before
gpt-5.1 default to medium reasoning effort, and do not support none.
- The
gpt-5-pro model defaults to (and only supports) high reasoning effort.
xhigh is supported for all models after gpt-5.1-codex-max.
Constrains effort on reasoning for
reasoning models.
Currently supported values are none, minimal, low, medium, high, and xhigh. Reducing
reasoning effort can result in faster responses and fewer tokens used
on reasoning in a response.
gpt-5.1defaults tonone, which does not perform reasoning. The supported reasoning values forgpt-5.1arenone,low,medium, andhigh. Tool calls are supported for all reasoning values in gpt-5.1.- All models before
gpt-5.1default tomediumreasoning effort, and do not supportnone. - The
gpt-5-promodel defaults to (and only supports)highreasoning effort. xhighis supported for all models aftergpt-5.1-codex-max.
Deprecatedgenerate_summary: Optional[Literal["auto", "concise", "detailed"]]Deprecated: use summary instead.
A summary of the reasoning performed by the model. This can be
useful for debugging and understanding the model's reasoning process.
One of auto, concise, or detailed.
Deprecated: use summary instead.
A summary of the reasoning performed by the model. This can be
useful for debugging and understanding the model's reasoning process.
One of auto, concise, or detailed.
summary: Optional[Literal["auto", "concise", "detailed"]]A summary of the reasoning performed by the model. This can be
useful for debugging and understanding the model's reasoning process.
One of auto, concise, or detailed.
concise is supported for computer-use-preview models and all reasoning models after gpt-5.
A summary of the reasoning performed by the model. This can be
useful for debugging and understanding the model's reasoning process.
One of auto, concise, or detailed.
concise is supported for computer-use-preview models and all reasoning models after gpt-5.
Configuration options for a text response from the model. Can be plain
text or structured JSON data. Learn more:
Configuration options for a text response from the model. Can be plain text or structured JSON data. Learn more:
An object specifying the format that the model must output.
Configuring { "type": "json_schema" } enables Structured Outputs,
which ensures the model will match your supplied JSON schema. Learn more in the
Structured Outputs guide.
The default format is { "type": "text" } with no additional options.
Not recommended for gpt-4o and newer models:
Setting to { "type": "json_object" } enables the older JSON mode, which
ensures the message the model generates is valid JSON. Using json_schema
is preferred for models that support it.
An object specifying the format that the model must output.
Configuring { "type": "json_schema" } enables Structured Outputs,
which ensures the model will match your supplied JSON schema. Learn more in the
Structured Outputs guide.
The default format is { "type": "text" } with no additional options.
Not recommended for gpt-4o and newer models:
Setting to { "type": "json_object" } enables the older JSON mode, which
ensures the message the model generates is valid JSON. Using json_schema
is preferred for models that support it.
class ResponseFormatText: …Default response format. Used to generate text responses.
Default response format. Used to generate text responses.
The type of response format being defined. Always text.
class ResponseFormatTextJSONSchemaConfig: …JSON Schema response format. Used to generate structured JSON responses.
Learn more about Structured Outputs.
JSON Schema response format. Used to generate structured JSON responses. Learn more about Structured Outputs.
The name of the response format. Must be a-z, A-Z, 0-9, or contain underscores and dashes, with a maximum length of 64.
The schema for the response format, described as a JSON Schema object. Learn how to build JSON schemas here.
The type of response format being defined. Always json_schema.
A description of what the response format is for, used by the model to determine how to respond in the format.
Whether to enable strict schema adherence when generating the output.
If set to true, the model will always follow the exact schema defined
in the schema field. Only a subset of JSON Schema is supported when
strict is true. To learn more, read the Structured Outputs
guide.
class ResponseFormatJSONObject: …JSON object response format. An older method of generating JSON responses.
Using json_schema is recommended for models that support it. Note that the
model will not generate JSON without a system or user message instructing it
to do so.
JSON object response format. An older method of generating JSON responses.
Using json_schema is recommended for models that support it. Note that the
model will not generate JSON without a system or user message instructing it
to do so.
The type of response format being defined. Always json_object.
verbosity: Optional[Literal["low", "medium", "high"]]Constrains the verbosity of the model's response. Lower values will result in
more concise responses, while higher values will result in more verbose responses.
Currently supported values are low, medium, and high.
Constrains the verbosity of the model's response. Lower values will result in
more concise responses, while higher values will result in more verbose responses.
Currently supported values are low, medium, and high.
Controls which tool the model should use, if any.
Controls which tool the model should use, if any.
Literal["none", "auto", "required"]
class ToolChoiceAllowed: …Constrains the tools available to the model to a pre-defined set.
Constrains the tools available to the model to a pre-defined set.
mode: Literal["auto", "required"]Constrains the tools available to the model to a pre-defined set.
auto allows the model to pick from among the allowed tools and generate a
message.
required requires the model to call one or more of the allowed tools.
Constrains the tools available to the model to a pre-defined set.
auto allows the model to pick from among the allowed tools and generate a
message.
required requires the model to call one or more of the allowed tools.
A list of tool definitions that the model should be allowed to call.
For the Responses API, the list of tool definitions might look like:
[
{ "type": "function", "name": "get_weather" },
{ "type": "mcp", "server_label": "deepwiki" },
{ "type": "image_generation" }
]Allowed tool configuration type. Always allowed_tools.
class ToolChoiceTypes: …Indicates that the model should use a built-in tool to generate a response.
Learn more about built-in tools.
Indicates that the model should use a built-in tool to generate a response. Learn more about built-in tools.
type: Literal["file_search", "web_search_preview", "computer_use_preview", 3 more]The type of hosted tool the model should to use. Learn more about
built-in tools.
Allowed values are:
file_searchweb_search_previewcomputer_use_previewcode_interpreterimage_generation
The type of hosted tool the model should to use. Learn more about built-in tools.
Allowed values are:
file_searchweb_search_previewcomputer_use_previewcode_interpreterimage_generation
class ToolChoiceFunction: …Use this option to force the model to call a specific function.
Use this option to force the model to call a specific function.
The name of the function to call.
For function calling, the type is always function.
class ToolChoiceMcp: …Use this option to force the model to call a specific tool on a remote MCP server.
Use this option to force the model to call a specific tool on a remote MCP server.
The label of the MCP server to use.
For MCP tools, the type is always mcp.
The name of the tool to call on the server.
class ToolChoiceCustom: …Use this option to force the model to call a specific custom tool.
Use this option to force the model to call a specific custom tool.
The name of the custom tool to call.
For custom tool calling, the type is always custom.
class ToolChoiceApplyPatch: …Forces the model to call the apply_patch tool when executing a tool call.
Forces the model to call the apply_patch tool when executing a tool call.
The tool to call. Always apply_patch.
class ToolChoiceShell: …Forces the model to call the shell tool when a tool call is required.
Forces the model to call the shell tool when a tool call is required.
The tool to call. Always shell.
An array of tools the model may call while generating a response. You can specify which tool to use by setting the tool_choice parameter.
An array of tools the model may call while generating a response. You can specify which tool to use by setting the tool_choice parameter.
class FunctionTool: …Defines a function in your own code the model can choose to call. Learn more about function calling.
Defines a function in your own code the model can choose to call. Learn more about function calling.
The name of the function to call.
A JSON schema object describing the parameters of the function.
Whether to enforce strict parameter validation. Default true.
The type of the function tool. Always function.
A description of the function. Used by the model to determine whether or not to call the function.
class FileSearchTool: …A tool that searches for relevant content from uploaded files. Learn more about the file search tool.
A tool that searches for relevant content from uploaded files. Learn more about the file search tool.
The type of the file search tool. Always file_search.
The IDs of the vector stores to search.
filters: Optional[Filters]A filter to apply.
A filter to apply.
class ComparisonFilter: …A filter used to compare a specified attribute key to a given value using a defined comparison operation.
A filter used to compare a specified attribute key to a given value using a defined comparison operation.
The key to compare against the value.
type: Literal["eq", "ne", "gt", 3 more]Specifies the comparison operator: eq, ne, gt, gte, lt, lte, in, nin.
eq: equalsne: not equalgt: greater thangte: greater than or equallt: less thanlte: less than or equalin: innin: not in
Specifies the comparison operator: eq, ne, gt, gte, lt, lte, in, nin.
eq: equalsne: not equalgt: greater thangte: greater than or equallt: less thanlte: less than or equalin: innin: not in
value: Union[str, float, bool, List[Union[str, float]]]The value to compare against the attribute key; supports string, number, or boolean types.
The value to compare against the attribute key; supports string, number, or boolean types.
List[Union[str, float]]
class CompoundFilter: …Combine multiple filters using and or or.
Combine multiple filters using and or or.
filters: List[Filter]Array of filters to combine. Items can be ComparisonFilter or CompoundFilter.
Array of filters to combine. Items can be ComparisonFilter or CompoundFilter.
class ComparisonFilter: …A filter used to compare a specified attribute key to a given value using a defined comparison operation.
A filter used to compare a specified attribute key to a given value using a defined comparison operation.
The key to compare against the value.
type: Literal["eq", "ne", "gt", 3 more]Specifies the comparison operator: eq, ne, gt, gte, lt, lte, in, nin.
eq: equalsne: not equalgt: greater thangte: greater than or equallt: less thanlte: less than or equalin: innin: not in
Specifies the comparison operator: eq, ne, gt, gte, lt, lte, in, nin.
eq: equalsne: not equalgt: greater thangte: greater than or equallt: less thanlte: less than or equalin: innin: not in
value: Union[str, float, bool, List[Union[str, float]]]The value to compare against the attribute key; supports string, number, or boolean types.
The value to compare against the attribute key; supports string, number, or boolean types.
List[Union[str, float]]
type: Literal["and", "or"]Type of operation: and or or.
Type of operation: and or or.
The maximum number of results to return. This number should be between 1 and 50 inclusive.
ranking_options: Optional[RankingOptions]Ranking options for search.
Ranking options for search.
hybrid_search: Optional[RankingOptionsHybridSearch]Weights that control how reciprocal rank fusion balances semantic embedding matches versus sparse keyword matches when hybrid search is enabled.
Weights that control how reciprocal rank fusion balances semantic embedding matches versus sparse keyword matches when hybrid search is enabled.
The weight of the embedding in the reciprocal ranking fusion.
The weight of the text in the reciprocal ranking fusion.
ranker: Optional[Literal["auto", "default-2024-11-15"]]The ranker to use for the file search.
The ranker to use for the file search.
The score threshold for the file search, a number between 0 and 1. Numbers closer to 1 will attempt to return only the most relevant results, but may return fewer results.
class ComputerTool: …A tool that controls a virtual computer. Learn more about the computer tool.
A tool that controls a virtual computer. Learn more about the computer tool.
The height of the computer display.
The width of the computer display.
environment: Literal["windows", "mac", "linux", 2 more]The type of computer environment to control.
The type of computer environment to control.
The type of the computer use tool. Always computer_use_preview.
class WebSearchTool: …Search the Internet for sources related to the prompt. Learn more about the
web search tool.
Search the Internet for sources related to the prompt. Learn more about the web search tool.
type: Literal["web_search", "web_search_2025_08_26"]The type of the web search tool. One of web_search or web_search_2025_08_26.
The type of the web search tool. One of web_search or web_search_2025_08_26.
filters: Optional[Filters]Filters for the search.
Filters for the search.
Allowed domains for the search. If not provided, all domains are allowed. Subdomains of the provided domains are allowed as well.
Example: ["pubmed.ncbi.nlm.nih.gov"]
search_context_size: Optional[Literal["low", "medium", "high"]]High level guidance for the amount of context window space to use for the search. One of low, medium, or high. medium is the default.
High level guidance for the amount of context window space to use for the search. One of low, medium, or high. medium is the default.
user_location: Optional[UserLocation]The approximate location of the user.
The approximate location of the user.
Free text input for the city of the user, e.g. San Francisco.
The two-letter ISO country code of the user, e.g. US.
Free text input for the region of the user, e.g. California.
The IANA timezone of the user, e.g. America/Los_Angeles.
The type of location approximation. Always approximate.
class Mcp: …Give the model access to additional tools via remote Model Context Protocol
(MCP) servers. Learn more about MCP.
Give the model access to additional tools via remote Model Context Protocol (MCP) servers. Learn more about MCP.
A label for this MCP server, used to identify it in tool calls.
The type of the MCP tool. Always mcp.
allowed_tools: Optional[McpAllowedTools]List of allowed tool names or a filter object.
List of allowed tool names or a filter object.
A string array of allowed tool names
class McpAllowedToolsMcpToolFilter: …A filter object to specify which tools are allowed.
A filter object to specify which tools are allowed.
Indicates whether or not a tool modifies data or is read-only. If an
MCP server is annotated with readOnlyHint,
it will match this filter.
List of allowed tool names.
An OAuth access token that can be used with a remote MCP server, either with a custom MCP server URL or a service connector. Your application must handle the OAuth authorization flow and provide the token here.
connector_id: Optional[Literal["connector_dropbox", "connector_gmail", "connector_googlecalendar", 5 more]]Identifier for service connectors, like those available in ChatGPT. One of
server_url or connector_id must be provided. Learn more about service
connectors here.
Currently supported connector_id values are:
- Dropbox:
connector_dropbox
- Gmail:
connector_gmail
- Google Calendar:
connector_googlecalendar
- Google Drive:
connector_googledrive
- Microsoft Teams:
connector_microsoftteams
- Outlook Calendar:
connector_outlookcalendar
- Outlook Email:
connector_outlookemail
- SharePoint:
connector_sharepoint
Identifier for service connectors, like those available in ChatGPT. One of
server_url or connector_id must be provided. Learn more about service
connectors here.
Currently supported connector_id values are:
- Dropbox:
connector_dropbox - Gmail:
connector_gmail - Google Calendar:
connector_googlecalendar - Google Drive:
connector_googledrive - Microsoft Teams:
connector_microsoftteams - Outlook Calendar:
connector_outlookcalendar - Outlook Email:
connector_outlookemail - SharePoint:
connector_sharepoint
Optional HTTP headers to send to the MCP server. Use for authentication or other purposes.
require_approval: Optional[McpRequireApproval]Specify which of the MCP server's tools require approval.
Specify which of the MCP server's tools require approval.
class McpRequireApprovalMcpToolApprovalFilter: …Specify which of the MCP server's tools require approval. Can be
always, never, or a filter object associated with tools
that require approval.
Specify which of the MCP server's tools require approval. Can be
always, never, or a filter object associated with tools
that require approval.
always: Optional[McpRequireApprovalMcpToolApprovalFilterAlways]A filter object to specify which tools are allowed.
A filter object to specify which tools are allowed.
Indicates whether or not a tool modifies data or is read-only. If an
MCP server is annotated with readOnlyHint,
it will match this filter.
List of allowed tool names.
never: Optional[McpRequireApprovalMcpToolApprovalFilterNever]A filter object to specify which tools are allowed.
A filter object to specify which tools are allowed.
Indicates whether or not a tool modifies data or is read-only. If an
MCP server is annotated with readOnlyHint,
it will match this filter.
List of allowed tool names.
Literal["always", "never"]Specify a single approval policy for all tools. One of always or
never. When set to always, all tools will require approval. When
set to never, all tools will not require approval.
Specify a single approval policy for all tools. One of always or
never. When set to always, all tools will require approval. When
set to never, all tools will not require approval.
Optional description of the MCP server, used to provide more context.
The URL for the MCP server. One of server_url or connector_id must be
provided.
class CodeInterpreter: …A tool that runs Python code to help generate a response to a prompt.
A tool that runs Python code to help generate a response to a prompt.
container: CodeInterpreterContainerThe code interpreter container. Can be a container ID or an object that
specifies uploaded file IDs to make available to your code, along with an
optional memory_limit setting.
The code interpreter container. Can be a container ID or an object that
specifies uploaded file IDs to make available to your code, along with an
optional memory_limit setting.
The container ID.
class CodeInterpreterContainerCodeInterpreterToolAuto: …Configuration for a code interpreter container. Optionally specify the IDs of the files to run the code on.
Configuration for a code interpreter container. Optionally specify the IDs of the files to run the code on.
Always auto.
An optional list of uploaded files to make available to your code.
memory_limit: Optional[Literal["1g", "4g", "16g", "64g"]]The memory limit for the code interpreter container.
The memory limit for the code interpreter container.
The type of the code interpreter tool. Always code_interpreter.
class ImageGeneration: …A tool that generates images using the GPT image models.
A tool that generates images using the GPT image models.
The type of the image generation tool. Always image_generation.
action: Optional[Literal["generate", "edit", "auto"]]Whether to generate a new image or edit an existing image. Default: auto.
Whether to generate a new image or edit an existing image. Default: auto.
background: Optional[Literal["transparent", "opaque", "auto"]]Background type for the generated image. One of transparent,
opaque, or auto. Default: auto.
Background type for the generated image. One of transparent,
opaque, or auto. Default: auto.
input_fidelity: Optional[Literal["high", "low"]]Control how much effort the model will exert to match the style and features, especially facial features, of input images. This parameter is only supported for gpt-image-1 and gpt-image-1.5 and later models, unsupported for gpt-image-1-mini. Supports high and low. Defaults to low.
Control how much effort the model will exert to match the style and features, especially facial features, of input images. This parameter is only supported for gpt-image-1 and gpt-image-1.5 and later models, unsupported for gpt-image-1-mini. Supports high and low. Defaults to low.
input_image_mask: Optional[ImageGenerationInputImageMask]Optional mask for inpainting. Contains image_url
(string, optional) and file_id (string, optional).
Optional mask for inpainting. Contains image_url
(string, optional) and file_id (string, optional).
File ID for the mask image.
Base64-encoded mask image.
model: Optional[Union[str, Literal["gpt-image-1", "gpt-image-1-mini", "gpt-image-1.5"], null]]The image generation model to use. Default: gpt-image-1.
The image generation model to use. Default: gpt-image-1.
Literal["gpt-image-1", "gpt-image-1-mini", "gpt-image-1.5"]The image generation model to use. Default: gpt-image-1.
The image generation model to use. Default: gpt-image-1.
moderation: Optional[Literal["auto", "low"]]Moderation level for the generated image. Default: auto.
Moderation level for the generated image. Default: auto.
Compression level for the output image. Default: 100.
output_format: Optional[Literal["png", "webp", "jpeg"]]The output format of the generated image. One of png, webp, or
jpeg. Default: png.
The output format of the generated image. One of png, webp, or
jpeg. Default: png.
Number of partial images to generate in streaming mode, from 0 (default value) to 3.
quality: Optional[Literal["low", "medium", "high", "auto"]]The quality of the generated image. One of low, medium, high,
or auto. Default: auto.
The quality of the generated image. One of low, medium, high,
or auto. Default: auto.
size: Optional[Literal["1024x1024", "1024x1536", "1536x1024", "auto"]]The size of the generated image. One of 1024x1024, 1024x1536,
1536x1024, or auto. Default: auto.
The size of the generated image. One of 1024x1024, 1024x1536,
1536x1024, or auto. Default: auto.
class LocalShell: …A tool that allows the model to execute shell commands in a local environment.
A tool that allows the model to execute shell commands in a local environment.
The type of the local shell tool. Always local_shell.
class FunctionShellTool: …A tool that allows the model to execute shell commands.
A tool that allows the model to execute shell commands.
The type of the shell tool. Always shell.
class CustomTool: …A custom tool that processes input using a specified format. Learn more about custom tools
A custom tool that processes input using a specified format. Learn more about custom tools
The name of the custom tool, used to identify it in tool calls.
The type of the custom tool. Always custom.
Optional description of the custom tool, used to provide more context.
format: Optional[CustomToolInputFormat]The input format for the custom tool. Default is unconstrained text.
The input format for the custom tool. Default is unconstrained text.
class Text: …Unconstrained free-form text.
Unconstrained free-form text.
Unconstrained text format. Always text.
class Grammar: …A grammar defined by the user.
A grammar defined by the user.
The grammar definition.
syntax: Literal["lark", "regex"]The syntax of the grammar definition. One of lark or regex.
The syntax of the grammar definition. One of lark or regex.
Grammar format. Always grammar.
class WebSearchPreviewTool: …This tool searches the web for relevant results to use in a response. Learn more about the web search tool.
This tool searches the web for relevant results to use in a response. Learn more about the web search tool.
type: Literal["web_search_preview", "web_search_preview_2025_03_11"]The type of the web search tool. One of web_search_preview or web_search_preview_2025_03_11.
The type of the web search tool. One of web_search_preview or web_search_preview_2025_03_11.
search_context_size: Optional[Literal["low", "medium", "high"]]High level guidance for the amount of context window space to use for the search. One of low, medium, or high. medium is the default.
High level guidance for the amount of context window space to use for the search. One of low, medium, or high. medium is the default.
user_location: Optional[UserLocation]The user's location.
The user's location.
The type of location approximation. Always approximate.
Free text input for the city of the user, e.g. San Francisco.
The two-letter ISO country code of the user, e.g. US.
Free text input for the region of the user, e.g. California.
The IANA timezone of the user, e.g. America/Los_Angeles.
class ApplyPatchTool: …Allows the assistant to create, delete, or update files using unified diffs.
Allows the assistant to create, delete, or update files using unified diffs.
The type of the tool. Always apply_patch.
truncation: Optional[Literal["auto", "disabled"]]The truncation strategy to use for the model response. - auto: If the input to this Response exceeds the model's context window size, the model will truncate the response to fit the context window by dropping items from the beginning of the conversation. - disabled (default): If the input size will exceed the context window size for a model, the request will fail with a 400 error.
The truncation strategy to use for the model response. - auto: If the input to this Response exceeds the model's context window size, the model will truncate the response to fit the context window by dropping items from the beginning of the conversation. - disabled (default): If the input size will exceed the context window size for a model, the request will fail with a 400 error.
ReturnsExpand Collapse
class InputTokenCountResponse: …
Get input token counts
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ.get("OPENAI_API_KEY"), # This is the default and can be omitted
)
response = client.responses.input_tokens.count()
print(response.input_tokens){
"input_tokens": 123,
"object": "response.input_tokens"
}Returns Examples
{
"input_tokens": 123,
"object": "response.input_tokens"
}