---
title: "Delete an eval"
method: DELETE
path: "/evals/{eval_id}"
tags: ["Evals"]
---

# Delete an eval

`DELETE /evals/{eval_id}`

Delete an evaluation.

## Path parameters

- `eval_id` string, required

## Response `200`

Successfully deleted the evaluation.

- object
  - `object` string, required
  - `deleted` boolean, required
  - `eval_id` string, required

## Other responses

- `400` — The evaluation cannot be deleted while it has unfinished runs.
- `404` — Evaluation not found.
- `429` — The request was rejected because a rate limit was exceeded.

## Changes

- **2026-09-25** `d86203de41ae` — 4 breaking, 1 warning, 2 info
  - removed the required property `code` from the response with the `404` status
  - removed the required property `message` from the response with the `404` status
  - removed the required property `param` from the response with the `404` status
  - removed the required property `type` from the response with the `404` status
  - …3 more
- **2026-09-03** `9430b00d75b4` — 2 info
  - added the optional property `error/misalignment` to the response with the `429` status
  - added the optional property `misalignment` to the response with the `404` status
- **2026-08-14** `6ac2618eefd7` — 1 info
  - added the non-success response with the status `429`
- **2026-05-13** `74cbcf73838f` — 2 breaking
  - response property `code` list-of-types was widened by adding types `null` to media type `application/json` of response `404`
  - response property `param` list-of-types was widened by adding types `null` to media type `application/json` of response `404`
- **2025-04-29** `6a6c681b1820` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/openai/apis/openapi/changes/evals/:eval_id/delete.md)

---

[API](https://skmtc.dev/openai/apis/openapi.md) · [All operations](https://skmtc.dev/openai/apis/openapi/llms.txt) · [OpenAPI document](https://skmtc.dev/openai/apis/openapi/revisions/d86203de41ae?raw)