Get input token counts
Returns input token counts of the request.
Returns an object with object set to response.input_tokens and an input_tokens count.
ParametersExpand Collapse
body InputTokenCountParams
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.
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 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.
type EasyInputMessage struct{…}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.
Content EasyInputMessageContentUnionText, 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 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.
type ResponseInputImage struct{…}An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
Role EasyInputMessageRoleThe 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.
Phase EasyInputMessagePhaseoptionalLabels an assistant message as intermediate commentary (commentary) or the final answer (final_answer).
For models like gpt-5.3-codex and beyond, when sending follow-up requests, preserve and resend
phase on all assistant messages — dropping it can degrade performance. Not used for user messages.
Labels an assistant message as intermediate commentary (commentary) or the final answer (final_answer).
For models like gpt-5.3-codex and beyond, when sending follow-up requests, preserve and resend
phase on all assistant messages — dropping it can degrade performance. Not used for user messages.
type ResponseInputItemMessage struct{…}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.
Content ResponseInputMessageContentListA 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.
type ResponseInputImage struct{…}An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
type ResponseOutputMessage struct{…}An output message from the model.
An output message from the model.
Content []ResponseOutputMessageContentUnionThe content of the output message.
The content of the output message.
type ResponseOutputText struct{…}A text output from the model.
A text output from the model.
Annotations []ResponseOutputTextAnnotationUnionThe annotations of the text output.
The annotations of the text output.
type ResponseOutputTextAnnotationURLCitation struct{…}A citation for a web resource used to generate a model response.
A citation for a web resource used to generate a model response.
Status ResponseOutputMessageStatusThe 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.
Phase ResponseOutputMessagePhaseoptionalLabels an assistant message as intermediate commentary (commentary) or the final answer (final_answer).
For models like gpt-5.3-codex and beyond, when sending follow-up requests, preserve and resend
phase on all assistant messages — dropping it can degrade performance. Not used for user messages.
Labels an assistant message as intermediate commentary (commentary) or the final answer (final_answer).
For models like gpt-5.3-codex and beyond, when sending follow-up requests, preserve and resend
phase on all assistant messages — dropping it can degrade performance. Not used for user messages.
type ResponseFileSearchToolCall struct{…}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.
Status ResponseFileSearchToolCallStatusThe 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,
Results []ResponseFileSearchToolCallResultoptionalThe results of the file search tool call.
The results of the file search tool call.
Attributes map[string, ResponseFileSearchToolCallResultAttributeUnion]optionalSet 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.
type ResponseComputerToolCall struct{…}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.
PendingSafetyChecks []ResponseComputerToolCallPendingSafetyCheckThe pending safety checks for the computer call.
The pending safety checks for the computer call.
Status ResponseComputerToolCallStatusThe 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.
Action ResponseComputerToolCallActionUnionoptionalA click action.
A click action.
type ResponseComputerToolCallActionClick struct{…}A click action.
A click action.
Button stringIndicates 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.
type ResponseComputerToolCallActionDrag struct{…}A drag action.
A drag action.
type ResponseComputerToolCallActionKeypress struct{…}A collection of keypresses the model would like to perform.
A collection of keypresses the model would like to perform.
Flattened batched actions for computer_use. Each action includes an
type discriminator and action-specific fields.
Flattened batched actions for computer_use. Each action includes an
type discriminator and action-specific fields.
type ComputerActionClick struct{…}A click action.
A click action.
type ComputerActionDrag struct{…}A drag action.
A drag action.
type ResponseInputItemComputerCallOutput struct{…}The output of a computer tool call.
The output of a computer tool call.
AcknowledgedSafetyChecks []ResponseInputItemComputerCallOutputAcknowledgedSafetyCheckoptionalThe 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.
Status stringoptionalThe 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.
type ResponseFunctionWebSearch struct{…}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.
Action ResponseFunctionWebSearchActionUnionAn 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).
type ResponseFunctionToolCall struct{…}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.
type ResponseInputItemFunctionCallOutput struct{…}The output of a function tool call.
The output of a function tool call.
Output ResponseInputItemFunctionCallOutputOutputUnionText, image, or file output of the function tool call.
Text, image, or file output of the function tool call.
An array of content outputs (text, image, file) for the function tool call.
An array of content outputs (text, image, file) for the function tool call.
type ResponseInputImageContent struct{…}An image input to the model. Learn about image inputs
An image input to the model. Learn about image inputs
The unique ID of the function tool call output. Populated when this item is returned via API.
Status stringoptionalThe 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.
type ResponseInputItemToolSearchCall struct{…}
The unique ID of the tool search call generated by the model.
type ResponseToolSearchOutputItemParamResp struct{…}
Tools []ToolUnionThe loaded tool definitions returned by the tool search output.
The loaded tool definitions returned by the tool search output.
type FunctionTool struct{…}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.
type FileSearchTool struct{…}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.
Filters FileSearchToolFiltersUnionoptionalA filter to apply.
A filter to apply.
type ComparisonFilter struct{…}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.
type CompoundFilter struct{…}Combine multiple filters using and or or.
Combine multiple filters using and or or.
Filters []ComparisonFilterArray of filters to combine. Items can be ComparisonFilter or CompoundFilter.
Array of filters to combine. Items can be ComparisonFilter or CompoundFilter.
type ComparisonFilter struct{…}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 maximum number of results to return. This number should be between 1 and 50 inclusive.
RankingOptions FileSearchToolRankingOptionsoptionalRanking options for search.
Ranking options for search.
type ComputerTool struct{…}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.
type ComputerUsePreviewTool struct{…}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.
type WebSearchTool struct{…}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.
SearchContextSize WebSearchToolSearchContextSizeoptionalHigh 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.
UserLocation WebSearchToolUserLocationoptionalThe approximate location of the user.
The approximate location of the user.
The two-letter ISO country code of the user, e.g. US.
The IANA timezone of the user, e.g. America/Los_Angeles.
type ToolMcp struct{…}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.
AllowedTools ToolMcpAllowedToolsUnionoptionalList of allowed tool names or a filter object.
List of allowed tool names or a filter object.
type ToolMcpAllowedToolsMcpToolFilter struct{…}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.
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.
ConnectorID stringoptionalIdentifier 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.
RequireApproval ToolMcpRequireApprovalUnionoptionalSpecify which of the MCP server's tools require approval.
Specify which of the MCP server's tools require approval.
type ToolMcpRequireApprovalMcpToolApprovalFilter struct{…}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 ToolMcpRequireApprovalMcpToolApprovalFilterAlwaysoptionalA 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.
Never ToolMcpRequireApprovalMcpToolApprovalFilterNeveroptionalA 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.
type ToolCodeInterpreter struct{…}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 ToolCodeInterpreterContainerUnionThe 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.
type ToolCodeInterpreterContainerCodeInterpreterContainerAuto struct{…}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.
MemoryLimit stringoptionalThe memory limit for the code interpreter container.
The memory limit for the code interpreter container.
type ToolImageGeneration struct{…}A tool that generates images using the GPT image models.
A tool that generates images using the GPT image models.
Background stringoptionalBackground 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.
InputFidelity stringoptionalControl 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.
InputImageMask ToolImageGenerationInputImageMaskoptionalOptional 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).
Compression level for the output image. Default: 100.
OutputFormat stringoptionalThe 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 stringoptionalThe 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.
type ToolLocalShell struct{…}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.
type FunctionShellTool struct{…}A tool that allows the model to execute shell commands.
A tool that allows the model to execute shell commands.
Environment FunctionShellToolEnvironmentUnionoptional
type ContainerAuto struct{…}
NetworkPolicy ContainerAutoNetworkPolicyUnionoptionalNetwork access policy for the container.
Network access policy for the container.
Skills []ContainerAutoSkillUnionoptionalAn optional list of skills referenced by id or inline data.
An optional list of skills referenced by id or inline data.
type InlineSkill struct{…}
Source InlineSkillSourceInline skill payload
Inline skill payload
type CustomTool struct{…}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 input format for the custom tool. Default is unconstrained text.
The input format for the custom tool. Default is unconstrained text.
type NamespaceTool struct{…}Groups function/custom tools under a shared namespace.
Groups function/custom tools under a shared namespace.
Tools []NamespaceToolToolUnionThe function/custom tools available inside this namespace.
The function/custom tools available inside this namespace.
type CustomTool struct{…}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 input format for the custom tool. Default is unconstrained text.
The input format for the custom tool. Default is unconstrained text.
type ToolSearchTool struct{…}Hosted or BYOT tool search configuration for deferred tools.
Hosted or BYOT tool search configuration for deferred tools.
type WebSearchPreviewTool struct{…}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 WebSearchPreviewToolTypeThe 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.
SearchContextSize WebSearchPreviewToolSearchContextSizeoptionalHigh 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.
UserLocation WebSearchPreviewToolUserLocationoptionalThe user's location.
The user's location.
The two-letter ISO country code of the user, e.g. US.
The IANA timezone of the user, e.g. America/Los_Angeles.
The unique ID of the tool search call generated by the model.
Execution ResponseToolSearchOutputItemParamExecutionoptionalWhether tool search was executed by the server or by the client.
Whether tool search was executed by the server or by the client.
Status ResponseToolSearchOutputItemParamStatusoptionalThe status of the tool search output.
The status of the tool search output.
type ResponseReasoningItem struct{…}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 encrypted content of the reasoning item - populated when a response is
generated with reasoning.encrypted_content in the include parameter.
type ResponseCompactionItemParamResp struct{…}A compaction item generated by the v1/responses/compact API.
A compaction item generated by the v1/responses/compact API.
type ResponseInputItemImageGenerationCall struct{…}An image generation request made by the model.
An image generation request made by the model.
Status stringThe status of the image generation call.
The status of the image generation call.
type ResponseCodeInterpreterToolCall struct{…}A tool call to run code.
A tool call to run code.
Outputs []ResponseCodeInterpreterToolCallOutputUnionThe 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.
Status ResponseCodeInterpreterToolCallStatusThe 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.
type ResponseInputItemLocalShellCall struct{…}A tool call to run a command on the local shell.
A tool call to run a command on the local shell.
type ResponseInputItemLocalShellCallOutput struct{…}The output of a local shell tool call.
The output of a local shell tool call.
The type of the local shell tool call output. Always local_shell_call_output.
Status stringoptionalThe status of the item. One of in_progress, completed, or incomplete.
The status of the item. One of in_progress, completed, or incomplete.
type ResponseInputItemShellCall struct{…}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 ResponseInputItemShellCallActionThe 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.
The unique ID of the shell tool call. Populated when this item is returned via API.
Environment ResponseInputItemShellCallEnvironmentUnionoptionalThe environment to execute the shell commands in.
The environment to execute the shell commands in.
type ResponseInputItemShellCallOutput struct{…}The streamed output items emitted by a shell tool call.
The streamed output items emitted by a shell tool call.
Captured chunks of stdout and stderr output, along with their associated outcomes.
Captured chunks of stdout and stderr output, along with their associated outcomes.
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.
type ResponseInputItemApplyPatchCall struct{…}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 ResponseInputItemApplyPatchCallOperationUnionThe 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.
type ResponseInputItemApplyPatchCallOperationCreateFile struct{…}Instruction for creating a new file via the apply_patch tool.
Instruction for creating a new file via the apply_patch tool.
type ResponseInputItemApplyPatchCallOperationDeleteFile struct{…}Instruction for deleting an existing file via the apply_patch tool.
Instruction for deleting an existing file via the apply_patch tool.
type ResponseInputItemApplyPatchCallOutput struct{…}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.
type ResponseInputItemMcpListTools struct{…}A list of tools available on an MCP server.
A list of tools available on an MCP server.
type ResponseInputItemMcpApprovalRequest struct{…}A request for human approval of a tool invocation.
A request for human approval of a tool invocation.
type ResponseInputItemMcpCall struct{…}An invocation of a tool on an MCP server.
An invocation of a tool on an MCP server.
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.
type ResponseCustomToolCallOutput struct{…}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.
Output ResponseCustomToolCallOutputOutputUnionThe 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.
type ResponseCustomToolCallOutputOutputOutputContentList []ResponseCustomToolCallOutputOutputOutputContentListItemUnionText, image, or file output of the custom tool call.
Text, image, or file output of the custom tool call.
type ResponseInputImage struct{…}An image input to the model. Learn about image inputs.
An image input to the model. Learn about image inputs.
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.
gpt-5 and o-series models only Configuration options for reasoning models.
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.
type ResponseFormatTextJSONSchemaConfig struct{…}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.
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.
Controls which tool the model should use, if any.
Controls which tool the model should use, if any.
type ToolChoiceOptions stringControls which (if any) tool is called by the model.
none means the model will not call any tool and instead generates a message.
auto means the model can pick between generating a message or calling one or
more tools.
required means the model must call one or more tools.
Controls which (if any) tool is called by the model.
none means the model will not call any tool and instead generates a message.
auto means the model can pick between generating a message or calling one or
more tools.
required means the model must call one or more tools.
type ToolChoiceAllowed struct{…}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 ToolChoiceAllowedModeConstrains 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.
type ToolChoiceTypes struct{…}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 ToolChoiceTypesTypeThe type of hosted tool the model should to use. Learn more about
built-in tools.
Allowed values are:
file_search
web_search_preview
computer
computer_use_preview
computer_use
code_interpreter
image_generation
The type of hosted tool the model should to use. Learn more about built-in tools.
Allowed values are:
file_searchweb_search_previewcomputercomputer_use_previewcomputer_usecode_interpreterimage_generation
type ToolChoiceMcp struct{…}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.
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.
type FunctionTool struct{…}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.
type FileSearchTool struct{…}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.
Filters FileSearchToolFiltersUnionoptionalA filter to apply.
A filter to apply.
type ComparisonFilter struct{…}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.
type CompoundFilter struct{…}Combine multiple filters using and or or.
Combine multiple filters using and or or.
Filters []ComparisonFilterArray of filters to combine. Items can be ComparisonFilter or CompoundFilter.
Array of filters to combine. Items can be ComparisonFilter or CompoundFilter.
type ComparisonFilter struct{…}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 maximum number of results to return. This number should be between 1 and 50 inclusive.
RankingOptions FileSearchToolRankingOptionsoptionalRanking options for search.
Ranking options for search.
type ComputerTool struct{…}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.
type ComputerUsePreviewTool struct{…}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.
type WebSearchTool struct{…}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.
SearchContextSize WebSearchToolSearchContextSizeoptionalHigh 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.
UserLocation WebSearchToolUserLocationoptionalThe approximate location of the user.
The approximate location of the user.
The two-letter ISO country code of the user, e.g. US.
The IANA timezone of the user, e.g. America/Los_Angeles.
type ToolMcp struct{…}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.
AllowedTools ToolMcpAllowedToolsUnionoptionalList of allowed tool names or a filter object.
List of allowed tool names or a filter object.
type ToolMcpAllowedToolsMcpToolFilter struct{…}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.
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.
ConnectorID stringoptionalIdentifier 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.
RequireApproval ToolMcpRequireApprovalUnionoptionalSpecify which of the MCP server's tools require approval.
Specify which of the MCP server's tools require approval.
type ToolMcpRequireApprovalMcpToolApprovalFilter struct{…}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 ToolMcpRequireApprovalMcpToolApprovalFilterAlwaysoptionalA 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.
Never ToolMcpRequireApprovalMcpToolApprovalFilterNeveroptionalA 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.
type ToolCodeInterpreter struct{…}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 ToolCodeInterpreterContainerUnionThe 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.
type ToolCodeInterpreterContainerCodeInterpreterContainerAuto struct{…}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.
MemoryLimit stringoptionalThe memory limit for the code interpreter container.
The memory limit for the code interpreter container.
type ToolImageGeneration struct{…}A tool that generates images using the GPT image models.
A tool that generates images using the GPT image models.
Background stringoptionalBackground 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.
InputFidelity stringoptionalControl 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.
InputImageMask ToolImageGenerationInputImageMaskoptionalOptional 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).
Compression level for the output image. Default: 100.
OutputFormat stringoptionalThe 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 stringoptionalThe 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.
type ToolLocalShell struct{…}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.
type FunctionShellTool struct{…}A tool that allows the model to execute shell commands.
A tool that allows the model to execute shell commands.
Environment FunctionShellToolEnvironmentUnionoptional
type ContainerAuto struct{…}
NetworkPolicy ContainerAutoNetworkPolicyUnionoptionalNetwork access policy for the container.
Network access policy for the container.
Skills []ContainerAutoSkillUnionoptionalAn optional list of skills referenced by id or inline data.
An optional list of skills referenced by id or inline data.
type InlineSkill struct{…}
Source InlineSkillSourceInline skill payload
Inline skill payload
type CustomTool struct{…}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 input format for the custom tool. Default is unconstrained text.
The input format for the custom tool. Default is unconstrained text.
type NamespaceTool struct{…}Groups function/custom tools under a shared namespace.
Groups function/custom tools under a shared namespace.
Tools []NamespaceToolToolUnionThe function/custom tools available inside this namespace.
The function/custom tools available inside this namespace.
type CustomTool struct{…}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 input format for the custom tool. Default is unconstrained text.
The input format for the custom tool. Default is unconstrained text.
type ToolSearchTool struct{…}Hosted or BYOT tool search configuration for deferred tools.
Hosted or BYOT tool search configuration for deferred tools.
type WebSearchPreviewTool struct{…}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 WebSearchPreviewToolTypeThe 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.
SearchContextSize WebSearchPreviewToolSearchContextSizeoptionalHigh 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.
UserLocation WebSearchPreviewToolUserLocationoptionalThe user's location.
The user's location.
The two-letter ISO country code of the user, e.g. US.
The IANA timezone of the user, e.g. America/Los_Angeles.
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.
Get input token counts
package main
import (
"context"
"fmt"
"github.com/openai/openai-go"
"github.com/openai/openai-go/responses"
)
func main() {
client := openai.NewClient()
response, err := client.Responses.InputTokens.Count(context.TODO(), responses.InputTokenCountParams{
Model: "gpt-5",
Input: "Tell me a joke.",
})
if err != nil {
panic(err.Error())
}
fmt.Printf("%+v\n", response.InputTokens)
}
{
"object": "response.input_tokens",
"input_tokens": 11
}
Returns Examples
{
"object": "response.input_tokens",
"input_tokens": 11
}