OpenAI API

ApiKeyList

object
objectstring

Example:list

dataarray[object]
Show Child Parameters
has_moreboolean
first_idstring

Example:key_abc

last_idstring

Example:key_xyz

Example

Assistant

object

Represents an assistant that can call the model and use tools.

idstringrequired

The identifier, which can be referenced in API endpoints.

objectstringrequired

The object type, which is always assistant.

Allowed values:assistant

created_atintegerrequired

The Unix timestamp (in seconds) for when the assistant was created.

namestringrequired

The name of the assistant. The maximum length is 256 characters.

<= 256 characters

descriptionstringrequired

The description of the assistant. The maximum length is 512 characters.

<= 512 characters

modelstringrequired

ID of the model to use. You can use the List models API to see all of your available models, or see our Model overview for descriptions of them.

instructionsstringrequired

The system instructions that the assistant uses. The maximum length is 256,000 characters.

<= 256000 characters

toolsOne Of
arrayrequired

A list of tool enabled on the assistant. There can be a maximum of 128 tools per assistant. Tools can be of types code_interpreter, file_search, or function.

Default:[]

<= 128 items

Code interpreter toolobject
Show Child Parameters
tool_resourcesobject

A set of resources that are used by the assistant’s tools. The resources are specific to the type of tool. For example, the code_interpreter tool requires a list of file IDs, while the file_search tool requires a list of vector store IDs.

Show Child Parameters
metadataobjectrequired

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.

temperaturenumber

What sampling temperature to use, between 0 and 2. Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.

Default:1

>= 0<= 2

Example:1

top_pnumber

An alternative to sampling with temperature, called nucleus sampling, where the model considers the results of the tokens with top_p probability mass. So 0.1 means only the tokens comprising the top 10% probability mass are considered.

We generally recommend altering this or temperature but not both.

Default:1

>= 0<= 1

Example:1

response_formatOne Of
AssistantsApiResponseFormatOptionstring

auto is the default value

Allowed values:auto

Example

AssistantStreamEvent

Represents an event emitted when streaming a Run.

Each event in a server-sent events stream has an event and data property:

event: thread.created
data: {"id": "thread_123", "object": "thread", ...}

We emit events whenever a new object is created, transitions to a new state, or is being
streamed in parts (deltas). For example, we emit thread.run.created when a new run
is created, thread.run.completed when a run completes, and so on. When an Assistant chooses
to create a message during a run, we emit a thread.message.created event, a
thread.message.in_progress event, many thread.message.delta events, and finally a
thread.message.completed event.

We may add additional events over time, so we recommend handling unknown events gracefully
in your code. See the Assistants API quickstart to learn how to
integrate the Assistants API with streaming.

One Of
ThreadStreamEventOne Of
Variant 1object

Occurs when a new thread is created.

Show Child Parameters
Example

AssistantSupportedModels

string

Allowed values:o3-minio3-mini-2025-01-31o1o1-2024-12-17gpt-4ogpt-4o-2024-11-20gpt-4o-2024-08-06gpt-4o-2024-05-13gpt-4o-minigpt-4o-mini-2024-07-18gpt-4-turbogpt-4-turbo-2024-04-09gpt-4-0125-previewgpt-4-turbo-previewgpt-4-1106-previewgpt-4-vision-previewgpt-4gpt-4-0314gpt-4-0613gpt-4-32kgpt-4-32k-0314gpt-4-32k-0613gpt-3.5-turbogpt-3.5-turbo-16kgpt-3.5-turbo-0613gpt-3.5-turbo-1106gpt-3.5-turbo-0125gpt-3.5-turbo-16k-0613

Code interpreter tool

object
typestringrequired

The type of tool being defined: code_interpreter

Allowed values:code_interpreter

Example