Skip to content
For the complete documentation index, see llms.txt. Markdown versions of documentation pages are available by appending .md to the page URL.
Primary navigation

Suggested
Overview Models Agents Tools Voice & Audio Production API reference
API Dashboard
Try ChatGPT
API Reference
Chat

Completions

Given a list of messages comprising a conversation, the model will return a response.

Create chat completion
ChatCompletion chat().completions().create(ChatCompletionCreateParamsparams, RequestOptionsrequestOptions = RequestOptions.none())
POST/chat/completions
Delete chat completion
ChatCompletionDeleted chat().completions().delete(ChatCompletionDeleteParamsparams = ChatCompletionDeleteParams.none(), RequestOptionsrequestOptions = RequestOptions.none())
DELETE/chat/completions/{completion_id}
List Chat Completions
ChatCompletionListPage chat().completions().list(ChatCompletionListParamsparams = ChatCompletionListParams.none(), RequestOptionsrequestOptions = RequestOptions.none())
GET/chat/completions
Get chat completion
ChatCompletion chat().completions().retrieve(ChatCompletionRetrieveParamsparams = ChatCompletionRetrieveParams.none(), RequestOptionsrequestOptions = RequestOptions.none())
GET/chat/completions/{completion_id}
Update chat completion
ChatCompletion chat().completions().update(ChatCompletionUpdateParamsparams, RequestOptionsrequestOptions = RequestOptions.none())
POST/chat/completions/{completion_id}
ModelsExpand Collapse
class ChatCompletionAllowedTools:

Constrains the tools available to the model to a pre-defined set.

class ChatCompletion:

Represents a chat completion response returned by model, based on the provided input.

class ChatCompletionAllowedToolChoice:

Constrains the tools available to the model to a pre-defined set.

class ChatCompletionAssistantMessageParam:

Messages sent by the model in response to user messages.

class ChatCompletionAudio:

If the audio output modality is requested, this object contains data about the audio response from the model. Learn more.

class ChatCompletionAudioParam:

Parameters for audio output. Required when audio output is requested with modalities: ["audio"]. Learn more.

class ChatCompletionChunk:

Represents a streamed chunk of a chat completion response returned by the model, based on the provided input. Learn more.

class ChatCompletionContentPart: A class that can be one of several variants.union

Learn about text inputs.

class ChatCompletionContentPartImage:

Learn about image inputs.

class ChatCompletionContentPartInputAudio:

Learn about audio inputs.

class ChatCompletionContentPartRefusal:
class ChatCompletionContentPartText:

Learn about text inputs.

class ChatCompletionCustomTool:

A custom tool that processes input using a specified format.

class ChatCompletionDeleted:
class ChatCompletionDeveloperMessageParam:

Developer-provided instructions that the model should follow, regardless of messages sent by the user. With o1 models and newer, developer messages replace the previous system messages.

class ChatCompletionFunctionCallOption:

Specifying a particular function via {"name": "my_function"} forces the model to call that function.

class ChatCompletionFunctionMessageParam:
class ChatCompletionFunctionTool:

A function tool that can be used to generate a response.

class ChatCompletionMessage:

A chat completion message generated by the model.

class ChatCompletionMessageCustomToolCall:

A call to a custom tool created by the model.

class ChatCompletionMessageFunctionToolCall:

A call to a function tool created by the model.

class ChatCompletionMessageParam: A class that can be one of several variants.union

Developer-provided instructions that the model should follow, regardless of messages sent by the user. With o1 models and newer, developer messages replace the previous system messages.

class ChatCompletionMessageToolCall: A class that can be one of several variants.union

A call to a function tool created by the model.

enum ChatCompletionModality:
class ChatCompletionNamedToolChoice:

Specifies a tool the model should use. Use to force the model to call a specific function.

class ChatCompletionNamedToolChoiceCustom:

Specifies a tool the model should use. Use to force the model to call a specific custom tool.

class ChatCompletionPredictionContent:

Static predicted output content, such as the content of a text file that is being regenerated.

enum ChatCompletionRole:

The role of the author of a message

class ChatCompletionStoreMessage:

A chat completion message generated by the model.

class ChatCompletionStreamOptions:

Options for streaming response. Only set this when you set stream: true.

class ChatCompletionSystemMessageParam:

Developer-provided instructions that the model should follow, regardless of messages sent by the user. With o1 models and newer, use developer messages for this purpose instead.

class ChatCompletionTokenLogprob:
class ChatCompletionTool: A class that can be one of several variants.union

A function tool that can be used to generate a response.

class ChatCompletionToolChoiceOption: A class that can be one of several variants.union

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. Specifying a particular tool via {"type": "function", "function": {"name": "my_function"}} forces the model to call that tool.

none is the default when no tools are present. auto is the default if tools are present.

class ChatCompletionToolMessageParam:
class ChatCompletionUserMessageParam:

Messages sent by an end user, containing prompts or additional context information.

CompletionsMessages

Given a list of messages comprising a conversation, the model will return a response.

Get chat messages
MessageListPage chat().completions().messages().list(MessageListParamsparams = MessageListParams.none(), RequestOptionsrequestOptions = RequestOptions.none())
GET/chat/completions/{completion_id}/messages