curl -X DELETE 'https://api.openai.com/v1/threads/thread-id' \
  -H "Authorization: Bearer $OPENAI_API_KEY"

# DELETE /threads/{thread_id} (OpenAI API)
Base URL: https://api.openai.com/v1
Auth: Authorization; OpenAI API key; required.
Last verified: 2026-10-20

> Delete thread

## Critical Gotchas
* The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.
* Audio transcription uploads use multipart form data rather than a JSON request body.

## cURL
curl -X DELETE 'https://api.openai.com/v1/threads/thread-id' \
  -H "Authorization: Bearer $OPENAI_API_KEY"

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| thread_id | path | string | Yes | The ID of the thread to delete. |

## Response example
{"id":"string","deleted":true,"object":"thread.deleted"}

---
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DELETE

DELETE /threads/{thread_id} — OpenAI API

OpenAI API key (required); https://api.openai.com/v1

OpenAI API

Delete thread

Base URL: https://api.openai.com/v1
Auth: Authorization: Bearer <OPENAI_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 160 tokens · Vary: Accept

Critical gotchas

The Responses API is the primary interface for new text and tool workflows; Chat Completions remains a separate compatibility API.

Audio transcription uploads use multipart form data rather than a JSON request body.

cURL

curl -X DELETE 'https://api.openai.com/v1/threads/thread-id' \  -H "Authorization: Bearer $OPENAI_API_KEY"

Parameters

Name	In	Type	Required	Description
thread_id	path	string	Yes	The ID of the thread to delete.

Response 200 OK

{
  "id": "string",
  "deleted": true,
  "object": "thread.deleted"
}

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