Create message

Deprecated

beta.threads.messages.create(thread_id, **kwargs) -> Message { id, assistant_id, attachments, 11 more }

POST/threads/{thread_id}/messages

Create a message.

ParametersExpand Collapse

thread_id: String

content: String | Array[MessageContentPartParam]

The text contents of the message.

Accepts one of the following:

String

The text contents of the message.

Array[MessageContentPartParam]

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:

class ImageFileContentBlock { 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: :auto | :low | :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.

class ImageURLContentBlock { 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.

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detail: :auto | :low | :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.

class TextContentBlockParam { 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 | :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: Array[{ file_id, tools}]

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

file_id: String

The ID of the file to attach to the message.

tools: Array[CodeInterpreterTool { type } | { type}]

The tools to add this file to.

Accepts one of the following:

class CodeInterpreterTool { type }

type: :code_interpreter

The type of tool being defined: code_interpreter

class FileSearch { type }

type: :file_search

The type of tool being defined: file_search

metadata: 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.

ReturnsExpand Collapse

class Message { id, assistant_id, attachments, 11 more }

Represents a message within a thread.

id: String

The identifier, which can be referenced in API endpoints.

assistant_id: String

If applicable, the ID of the assistant that authored this message.

attachments: Array[{ file_id, tools}]

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

file_id: String

The ID of the file to attach to the message.

tools: Array[CodeInterpreterTool { type } | { type}]

The tools to add this file to.

Accepts one of the following:

class CodeInterpreterTool { type }

type: :code_interpreter

The type of tool being defined: code_interpreter

class AssistantToolsFileSearchTypeOnly { type }

type: :file_search

The type of tool being defined: file_search

completed_at: Integer

The Unix timestamp (in seconds) for when the message was completed.

content: Array[MessageContent]

The content of the message in array of text and/or images.

Accepts one of the following:

class ImageFileContentBlock { 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: :auto | :low | :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.

class ImageURLContentBlock { 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.

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detail: :auto | :low | :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.

class TextContentBlock { text, type }

The text content that is part of a message.

text: Text { annotations, value }

annotations: Array[Annotation]

Accepts one of the following:

class FileCitationAnnotation { end_index, file_citation, start_index, 2 more }

A citation within the message that points to a specific quote from a specific File associated with the assistant or the message. Generated when the assistant uses the "file_search" tool to search files.

end_index: Integer

minimum0

file_citation: { file_id}

file_id: String

The ID of the specific File the citation is from.

start_index: Integer

minimum0

text: String

The text in the message content that needs to be replaced.

type: :file_citation

Always file_citation.

class FilePathAnnotation { end_index, file_path, start_index, 2 more }

A URL for the file that's generated when the assistant used the code_interpreter tool to generate a file.

end_index: Integer

minimum0

file_path: { file_id}

file_id: String

The ID of the file that was generated.

start_index: Integer

minimum0

text: String

The text in the message content that needs to be replaced.

type: :file_path

Always file_path.

value: String

The data that makes up the text.

type: :text

Always text.

class RefusalContentBlock { refusal, type }

The refusal content generated by the assistant.

refusal: String

type: :refusal

Always refusal.

created_at: Integer

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

incomplete_at: Integer

The Unix timestamp (in seconds) for when the message was marked as incomplete.

incomplete_details: { reason}

On an incomplete message, details about why the message is incomplete.

reason: :content_filter | :max_tokens | :run_cancelled | 2 more

The reason the message is incomplete.

Accepts one of the following:

:content_filter

:max_tokens

:run_cancelled

:run_expired

:run_failed

metadata: Metadata

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

object: :"thread.message"

The object type, which is always thread.message.

role: :user | :assistant

The entity that produced the message. One of user or assistant.

Accepts one of the following:

:user

:assistant

run_id: String

The ID of the run associated with the creation of this message. Value is null when messages are created manually using the create message or create thread endpoints.

status: :in_progress | :incomplete | :completed

The status of the message, which can be either in_progress, incomplete, or completed.

Accepts one of the following:

:in_progress

:incomplete

:completed

thread_id: String

The thread ID that this message belongs to.

Create message

require "openai"

openai = OpenAI::Client.new(api_key: "My API Key")

message = openai.beta.threads.messages.create("thread_id", content: "string", role: :user)

puts(message)

{
  "id": "msg_abc123",
  "object": "thread.message",
  "created_at": 1713226573,
  "assistant_id": null,
  "thread_id": "thread_abc123",
  "run_id": null,
  "role": "user",
  "content": [
    {
      "type": "text",
      "text": {
        "value": "How does AI work? Explain it in simple terms.",
        "annotations": []
      }
    }
  ],
  "attachments": [],
  "metadata": {}
}

Returns Examples

{
  "id": "msg_abc123",
  "object": "thread.message",
  "created_at": 1713226573,
  "assistant_id": null,
  "thread_id": "thread_abc123",
  "run_id": null,
  "role": "user",
  "content": [
    {
      "type": "text",
      "text": {
        "value": "How does AI work? Explain it in simple terms.",
        "annotations": []
      }
    }
  ],
  "attachments": [],
  "metadata": {}
}