---
title: "Changes to Create completion"
method: POST
path: "/completions"
---

# Changes to Create completion

`POST /completions`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 88 revisions.

- **2026-10-16** `2bd7f610e8d0`: 1 info
- **2026-10-06** `487892d3954e`: 6 info
- **2026-10-05** `7f654af7f94f`: 20 breaking, 5 warning, 23 info

## Changes

- **2026-10-16** `2bd7f610e8d0`: 1 info
  - added the media type `text/event-stream` for the response with the status `200`
- **2026-10-06** `487892d3954e`: 6 info
  - added the optional property `error/misalignment/review_target` to the response with the `400` status
  - added the optional property `error/misalignment/review_target` to the response with the `401` status
  - added the optional property `error/misalignment/review_target` to the response with the `404` status
  - added the optional property `error/misalignment/review_target` to the response with the `429` status
  - added the optional property `error/misalignment/review_target` to the response with the `500` status
  - added the optional property `error/misalignment/review_target` to the response with the `503` status
- **2026-10-05** `7f654af7f94f`: 20 breaking, 5 warning, 23 info
  - the request property `best_of` became not nullable
  - the request property `echo` became not nullable
  - the request property `frequency_penalty` became not nullable
  - the request property `logit_bias` became not nullable
  - the request property `logprobs` became not nullable
  - the request property `max_tokens` became not nullable
  - the request property `n` became not nullable
  - the request property `presence_penalty` became not nullable
  - the request property `prompt` became not nullable
  - the request property `seed` became not nullable
  - the request property `stop` became not nullable
  - the request property `stream` became not nullable
  - the request property `stream_options` became not nullable
  - the request property `suffix` became not nullable
  - the request property `temperature` became not nullable
  - the request property `top_p` became not nullable
  - the `seed` request property type changed from `integer` to `integer, null`, and format from no format to `int64`
  - the `stream_options` request property type changed from `object` to no type
  - response property `choices/items/finish_reason` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
  - the `choices/items/logprobs` response's property type changed from `object` to no type for status `200`
  - removed the request property `stream_options/include_usage`
  - removed the optional property `choices/items/logprobs/text_offset` from the response with the `200` status
  - removed the optional property `choices/items/logprobs/token_logprobs` from the response with the `200` status
  - removed the optional property `choices/items/logprobs/tokens` from the response with the `200` status
  - removed the optional property `choices/items/logprobs/top_logprobs` from the response with the `200` status
  - added `subschema #1, subschema #2` to the `stream_options` request property `anyOf` list
  - request property `prompt` list-of-types was widened by adding types `null` to media type `application/json`
  - request property `stop` list-of-types was widened by adding types `null` to media type `application/json`
  - added the non-success response with the status `400`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - added the non-success response with the status `429`
  - added the non-success response with the status `500`
  - added the non-success response with the status `503`
  - added the optional property `usage/completion_tokens_details/accepted_prediction_tokens` to the response with the `200` status
  - added the optional property `usage/completion_tokens_details/audio_tokens` to the response with the `200` status
  - added the optional property `usage/completion_tokens_details/rejected_prediction_tokens` to the response with the `200` status
  - added the optional property `usage/completion_tokens_details/text_tokens` to the response with the `200` status
  - added the optional property `usage/prompt_tokens_details` to the response with the `200` status
  - …8 more

---

[Operation](https://skmtc.dev/omnistack-sh/apis/openai-api/docs/completions/post.md) - [API](https://skmtc.dev/omnistack-sh/apis/openai-api.md) - [Page](https://skmtc.dev/omnistack-sh/apis/openai-api/changes/completions/post)