curl -X GET 'https://api.openai.com/v1/threads/thread-id/runs/run-id/steps/step-id?include%5B%5D=example' \
  -H "Authorization: Bearer $OPENAI_API_KEY"

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

> Retrieve run step

## 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 GET 'https://api.openai.com/v1/threads/thread-id/runs/run-id/steps/step-id?include%5B%5D=example' \
  -H "Authorization: Bearer $OPENAI_API_KEY"

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| thread_id | path | string | Yes | The ID of the thread to which the run and run step belongs. |
| run_id | path | string | Yes | The ID of the run to which the run step belongs. |
| step_id | path | string | Yes | The ID of the run step to retrieve. |
| include[] | query | string[] | No | A list of additional fields to include in the response. Currently the only su... |

## Response example
{"id":"string","object":"thread.run.step"}

---
Need an API key? Get one at https://platform.openai.com/api-keys

GET

GET /threads/{thread_id}/runs/{run_id}/steps/{step_id} — OpenAI API

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

OpenAI API

Retrieve run step

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
→ 251 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 GET 'https://api.openai.com/v1/threads/thread-id/runs/run-id/steps/step-id?include%5B%5D=example' \  -H "Authorization: Bearer $OPENAI_API_KEY"

Parameters

Name	In	Type	Required	Description
thread_id	path	string	Yes	The ID of the thread to which the run and run step belongs.
run_id	path	string	Yes	The ID of the run to which the run step belongs.
step_id	path	string	Yes	The ID of the run step to retrieve.
include[]	query	string[]	No	A list of additional fields to include in the response. Currently the only supported value is `step_details.tool_calls[].file_search.results[].content` to fetch the file search result content. See the [file search tool documentation](https://developers.openai.com/api/docs/guides/tools-file-search#retrieval-customization) for more information.

Response 200 OK

{
  "id": "string",
  "object": "thread.run.step",
  "created_at": 0,
  "assistant_id": "string",
  "thread_id": "string",
  "run_id": "string",
  "type": "message_creation",
  "status": "in_progress",
  "step_details": {
    "type": "message_creation",
    "message_creation": {
      "message_id": "string"
    }
  },
  "last_error": {
    "code": "server_error",
    "message": "string"
  },
  "expired_at": 0,
  "cancelled_at": 0,
  "failed_at": 0,
  "completed_at": 0,
  "metadata": {},
  "usage": {
    "completion_tokens": 0,
    "prompt_tokens": 0,
    "total_tokens": 0
  }
}

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