Create thread

Deprecated

POST/threads

Create a thread.

Body ParametersJSONExpand Collapse

messages: optional array of object { content, role, attachments, metadata }

A list of messages to start the thread with.

content: string or array of ImageFileContentBlock { image_file, type } or ImageURLContentBlock { image_url, type } or TextContentBlockParam { text, type }

The text contents of the message.

Accepts one of the following:

TextContent = string

The text contents of the message.

ArrayOfContentParts = array of ImageFileContentBlock { image_file, type } or ImageURLContentBlock { image_url, type } or TextContentBlockParam { text, type }

An array of content parts with a defined type, each can be of type text or images can be passed with image_url or image_file. Image types are only supported on Vision-compatible models.

Accepts one of the following:

ImageFileContentBlock = object { image_file, type }

References an image File in the content of a message.

image_file: ImageFile { file_id, detail }

file_id: string

The File ID of the image in the message content. Set purpose="vision" when uploading the File if you need to later display the file content.

detail: optional "auto" or "low" or "high"

Specifies the detail level of the image if specified by the user. low uses fewer tokens, you can opt in to high resolution using high.

Accepts one of the following:

"auto"

"low"

"high"

type: "image_file"

Always image_file.

ImageURLContentBlock = object { image_url, type }

References an image URL in the content of a message.

image_url: ImageURL { url, detail }

url: string

The external URL of the image, must be a supported image types: jpeg, jpg, png, gif, webp.

formaturi

detail: optional "auto" or "low" or "high"

Specifies the detail level of the image. low uses fewer tokens, you can opt in to high resolution using high. Default value is auto

Accepts one of the following:

"auto"

"low"

"high"

type: "image_url"

The type of the content part.

TextContentBlockParam = object { text, type }

The text content that is part of a message.

text: string

Text content to be sent to the model

type: "text"

Always text.

role: "user" or "assistant"

The role of the entity that is creating the message. Allowed values include:

user: Indicates the message is sent by an actual user and should be used in most cases to represent user-generated messages.
assistant: Indicates the message is generated by the assistant. Use this value to insert messages from the assistant into the conversation.

Accepts one of the following:

"user"

"assistant"

attachments: optional array of object { file_id, tools }

A list of files attached to the message, and the tools they should be added to.

file_id: optional string

The ID of the file to attach to the message.

tools: optional array of CodeInterpreterTool { type } or object { type }

The tools to add this file to.

Accepts one of the following:

CodeInterpreterTool = object { type }

type: "code_interpreter"

The type of tool being defined: code_interpreter

FileSearchTool = object { type }

type: "file_search"

The type of tool being defined: file_search

metadata: optional Metadata

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.

metadata: optional Metadata

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.

tool_resources: optional object { code_interpreter, file_search }

A set of resources that are made available to the assistant's tools in this thread. 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.

code_interpreter: optional object { file_ids }

file_ids: optional array of string

A list of file IDs made available to the code_interpreter tool. There can be a maximum of 20 files associated with the tool.

file_search: optional object { vector_store_ids, vector_stores }

vector_store_ids: optional array of string

The vector store attached to this thread. There can be a maximum of 1 vector store attached to the thread.

vector_stores: optional array of object { chunking_strategy, file_ids, metadata }

A helper to create a vector store with file_ids and attach it to this thread. There can be a maximum of 1 vector store attached to the thread.

chunking_strategy: optional object { type } or object { static, type }

The chunking strategy used to chunk the file(s). If not set, will use the auto strategy.

Accepts one of the following:

AutoChunkingStrategy = object { type }

The default strategy. This strategy currently uses a max_chunk_size_tokens of 800 and chunk_overlap_tokens of 400.

type: "auto"

Always auto.

StaticChunkingStrategy = object { static, type }

static: object { chunk_overlap_tokens, max_chunk_size_tokens }

chunk_overlap_tokens: number

The number of tokens that overlap between chunks. The default value is 400.

Note that the overlap must not exceed half of max_chunk_size_tokens.

max_chunk_size_tokens: number

The maximum number of tokens in each chunk. The default value is 800. The minimum value is 100 and the maximum value is 4096.

minimum100

maximum4096

type: "static"

Always static.

file_ids: optional array of string

A list of file IDs to add to the vector store. There can be a maximum of 10000 files in a vector store.

metadata: optional Metadata

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.

ReturnsExpand Collapse

Thread = object { id, created_at, metadata, 2 more }

Represents a thread that contains messages.

id: string

The identifier, which can be referenced in API endpoints.

created_at: number

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

metadata: Metadata

Keys are strings with a maximum length of 64 characters. Values are strings with a maximum length of 512 characters.

object: "thread"

The object type, which is always thread.

tool_resources: object { code_interpreter, file_search }

code_interpreter: optional object { file_ids }

file_ids: optional array of string

A list of file IDs made available to the code_interpreter tool. There can be a maximum of 20 files associated with the tool.

file_search: optional object { vector_store_ids }

vector_store_ids: optional array of string

The vector store attached to this thread. There can be a maximum of 1 vector store attached to the thread.

EmptyMessages

Create thread

curl https://api.openai.com/v1/threads \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "OpenAI-Beta: assistants=v2" \
  -d ''

{
  "id": "thread_abc123",
  "object": "thread",
  "created_at": 1699012949,
  "metadata": {},
  "tool_resources": {}
}

Create thread

curl https://api.openai.com/v1/threads \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OPENAI_API_KEY" \
-H "OpenAI-Beta: assistants=v2" \
-d '{
    "messages": [{
      "role": "user",
      "content": "Hello, what is AI?"
    }, {
      "role": "user",
      "content": "How does AI work? Explain it in simple terms."
    }]
  }'

{
  "id": "thread_abc123",
  "object": "thread",
  "created_at": 1699014083,
  "metadata": {},
  "tool_resources": {}
}

Returns Examples

{
  "id": "id",
  "created_at": 0,
  "metadata": {
    "foo": "string"
  },
  "object": "thread",
  "tool_resources": {
    "code_interpreter": {
      "file_ids": [
        "string"
      ]
    },
    "file_search": {
      "vector_store_ids": [
        "string"
      ]
    }
  }
}

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Create thread

Body ParametersJSONExpand Collapse

ReturnsExpand Collapse

Create thread

Create thread

Returns Examples