---
title: "POST /v1/projects/{projectsId}/locations/{locationsId}/tuningJobs/{tuningJobsId}:cancel"
method: POST
path: "/v1/projects/{projectsId}/locations/{locationsId}/tuningJobs/{tuningJobsId}:cancel"
tags: ["projects"]
---

# POST /v1/projects/{projectsId}/locations/{locationsId}/tuningJobs/{tuningJobsId}:cancel

`POST /v1/projects/{projectsId}/locations/{locationsId}/tuningJobs/{tuningJobsId}:cancel`

## Request

- Base URL: `https://aiplatform.googleapis.com`
- URL: `https://aiplatform.googleapis.com/v1/projects/{projectsId}/locations/{locationsId}/tuningJobs/{tuningJobsId}:cancel`
- Auth: one of:
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/aiplatform`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/aiplatform`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/cloud-platform`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/cloud-platform`

Cancels a tuning job. Starts an asynchronous cancellation request. The server makes a best effort to cancel the job, but success is not guaranteed. Clients can use GenAiTuningService.GetTuningJob or other methods to check whether the cancellation succeeded or whether the job completed despite cancellation. On successful cancellation, the tuning job is not deleted. Instead, its state is set to `CANCELLED`, and `error` is set to a status with a `google.rpc.Status.code` of 1, corresponding to `Code.CANCELLED`.

## Path parameters

- `projectsId` string, required
- `locationsId` string, required
- `tuningJobsId` string, required

## Request body

- GoogleCloudAiplatformV1CancelTuningJobRequest: Request message for GenAiTuningService.CancelTuningJob.

## Response `200`

Successful response

- GoogleProtobufEmpty: A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); }

## Changes

- **2026-11-06** `3aca3b348f0c`: 4 info
  - the security scope `https://www.googleapis.com/auth/aiplatform` was added to the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/aiplatform` was added to the endpoint's security scheme `Oauth2c`
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was removed from the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was removed from the endpoint's security scheme `Oauth2c`
- **2026-10-30** `34fcc627b062`: 4 info
  - the security scope `https://www.googleapis.com/auth/aiplatform` was added to the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/aiplatform` was added to the endpoint's security scheme `Oauth2c`
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was removed from the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was removed from the endpoint's security scheme `Oauth2c`

[Operation history](https://skmtc.dev/google/apis/aiplatform/changes/v1/projects/:projectsId/locations/:locationsId/tuningJobs/:tuningJobsId:cancel/post.md)

---

[API](https://skmtc.dev/google/apis/aiplatform.md) - [All operations](https://skmtc.dev/google/apis/aiplatform/llms.txt) - [OpenAPI document](https://skmtc.dev/google/apis/aiplatform/revisions/3aca3b348f0c?raw)