API Reference

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Delete message

Deprecated: The Assistants API is deprecated in favor of the Responses API

$ openai beta:threads:messages delete

DELETE/threads/{thread_id}/messages/{message_id}

Deletes a message.

ParametersExpand Collapse

--thread-id: string

The ID of the thread to which this message belongs.

--message-id: string

The ID of the message to delete.

ReturnsExpand Collapse

message_deleted: object { id, deleted, object }

id: string

deleted: boolean

object: "thread.message.deleted"

Delete message

CLI Tool

HTTP

HTTP

TypeScript

Python

Java

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Ruby

CLI Tool

openai beta:threads:messages delete \
  --api-key 'My API Key' \
  --thread-id thread_id \
  --message-id message_id

{
  "id": "msg_abc123",
  "object": "thread.message.deleted",
  "deleted": true
}

Returns Examples

{
  "id": "msg_abc123",
  "object": "thread.message.deleted",
  "deleted": true
}