---
title: "DELETE /projects/{projectId}/predictions"
method: DELETE
path: "/projects/{projectId}/predictions"
---

# DELETE /projects/{projectId}/predictions

`DELETE /projects/{projectId}/predictions`

Delete a set of predicted images and their associated prediction results.

## Path parameters

- `projectId` string, uuid, required

## Query parameters

- `ids` string[], required

## Response `204`

No Content

## Other responses

- `default` — Error response

## Changes

- **2026-07-13** `e873dad2a189` — 1 warning, 2 info
  - deleted the `header` request parameter `Training-Key`
  - api operation id `DeletePrediction` removed and replaced with `Predictions_Delete`
  - api tag `PredictionsApi` removed
- **2026-07-13** `82dfb72c78fa` — 2 info
  - api operation id `Predictions_Delete` removed and replaced with `DeletePrediction`
  - api tag `PredictionsApi` added
- **2018-02-03** `8feb7cde15fc` — 1 breaking
  - added the new required `header` request parameter `Training-Key`

[Change history](https://skmtc.dev/azure/apis/cognitiveservices-customvision-training/changes/projects/:projectId/predictions/delete.md)

---

[API](https://skmtc.dev/azure/apis/cognitiveservices-customvision-training.md) · [All operations](https://skmtc.dev/azure/apis/cognitiveservices-customvision-training/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/azure/cognitiveservices-customvision-training/revisions/e873dad2a189/schema)