---
title: "Changes to OpenAI-compatible chat completions"
method: POST
path: "/v1/chat/completions"
---

# Changes to OpenAI-compatible chat completions

`POST /v1/chat/completions`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 74 revisions.

- **2026-08-20** `279647a4fbc6` — 1 info
- **2026-08-04** `1f4cd19ab849` — 1 info

## Changes

- **2026-08-20** `279647a4fbc6` — 1 info
  - added the optional property `usage/prompt_tokens_details` to the response with the `200` status
- **2026-08-04** `1f4cd19ab849` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/docs/v1/chat/completions/post.md) · [API](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api.md) · [Page](https://skmtc.dev/arize-ai/apis/arize-phoenix-rest-api/changes/v1/chat/completions/post)