---
title: "Changes to Create chat completion (OpenAI-compatible)"
method: POST
path: "/openai/chat/completions"
---

# Changes to Create chat completion (OpenAI-compatible)

`POST /openai/chat/completions`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 21 revisions.

- **2026-11-13** `d46bc3931b34`: 21 warning, 2 info
- **2026-10-16** `d5b1beb33be5`: 1 info

## Changes

- **2026-11-13** `d46bc3931b34`: 21 warning, 2 info
  - added the new `405.00` enum value to the `allOf[subschema #1]/status` response property for the response status `401`
  - added the new `405.00` enum value to the `allOf[subschema #1]/status` response property for the response status `403`
  - added the new `405.00` enum value to the `allOf[subschema #1]/status` response property for the response status `404`
  - added the new `405.00` enum value to the `status` response property for the response status `400`
  - added the new `405.00` enum value to the `status` response property for the response status `429`
  - added the new `405.00` enum value to the `status` response property for the response status `502`
  - added the new `405.00` enum value to the `status` response property for the response status `503`
  - added the new `409.00` enum value to the `allOf[subschema #1]/status` response property for the response status `401`
  - added the new `409.00` enum value to the `allOf[subschema #1]/status` response property for the response status `403`
  - added the new `409.00` enum value to the `allOf[subschema #1]/status` response property for the response status `404`
  - added the new `409.00` enum value to the `status` response property for the response status `400`
  - added the new `409.00` enum value to the `status` response property for the response status `429`
  - added the new `409.00` enum value to the `status` response property for the response status `502`
  - added the new `409.00` enum value to the `status` response property for the response status `503`
  - added the new `500.00` enum value to the `allOf[subschema #1]/status` response property for the response status `401`
  - added the new `500.00` enum value to the `allOf[subschema #1]/status` response property for the response status `403`
  - added the new `500.00` enum value to the `allOf[subschema #1]/status` response property for the response status `404`
  - added the new `500.00` enum value to the `status` response property for the response status `400`
  - added the new `500.00` enum value to the `status` response property for the response status `429`
  - added the new `500.00` enum value to the `status` response property for the response status `502`
  - added the new `500.00` enum value to the `status` response property for the response status `503`
  - added the new optional `header` request parameter `X-Queue-Timeout`
  - removed the pattern `^[a-z0-9][a-z0-9-]*$` from the request property `provider`
- **2026-10-16** `d5b1beb33be5`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/premai-io/apis/prem-studio-api/docs/openai/chat/completions/post.md) - [API](https://skmtc.dev/premai-io/apis/prem-studio-api.md) - [Page](https://skmtc.dev/premai-io/apis/prem-studio-api/changes/openai/chat/completions/post)