---
title: "Changes to Openai Chat Completions"
method: POST
path: "/v1/chat/completions"
---

# Changes to Openai Chat Completions

`POST /v1/chat/completions`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 6 of 17 revisions.

- **2026-08-24** `900aef7c556d` — 1 breaking, 1 info
- **2026-08-14** `63ee8b82144f` — 1 info
- **2026-08-07** `2df28210837a` — 1 breaking, 3 info
- **2026-08-05** `2418bb7a2691` — 1 info
- **2026-07-31** `ba92d7849914` — 1 breaking, 2 info
- **2026-07-26** `09df98e6ea15` — 9 info

## Changes

- **2026-08-24** `900aef7c556d` — 1 breaking, 1 info
  - removed `#/components/schemas/ChatCompletionToolMessage, #/components/schemas/ChatCompletionAssistantMessage, #/components/schemas/ChatCompletionUserMessage, #/components/schemas/ChatCompletionSystemMessage` from the `messages/items/` request property `anyOf` list
  - added `#/components/schemas/ChatCompletionToolMessage, #/components/schemas/ChatCompletionAssistantMessage, #/components/schemas/ChatCompletionUserMessage, #/components/schemas/ChatCompletionSystemMessage` to the `messages/items/` request property `oneOf` list
- **2026-08-14** `63ee8b82144f` — 1 info
  - added the new optional request property `models`
- **2026-08-07** `2df28210837a` — 1 breaking, 3 info
  - request property `tool_choice/anyOf[subschema #1]/` was restricted to a list of enum values
  - added the new `auto` enum value to the request property `tool_choice/anyOf[subschema #1]/`
  - added the new `none` enum value to the request property `tool_choice/anyOf[subschema #1]/`
  - added the new `required` enum value to the request property `tool_choice/anyOf[subschema #1]/`
- **2026-08-05** `2418bb7a2691` — 1 info
  - added the new optional request property `ignore_eos`
- **2026-07-31** `ba92d7849914` — 1 breaking, 2 info
  - removed `#/components/schemas/ChatTools` from the `tool_choice` request property `anyOf` list
  - added the new optional request property `fail_fast`
  - added `#/components/schemas/FunctionTool` to the `tool_choice` request property `anyOf` list
- **2026-07-26** `09df98e6ea15` — 9 info
  - added the new optional request property `messages/items/anyOf[subschema #1: ChatCompletionToolMessage]/content/anyOf[subschema #2]/items/prompt_cache_breakpoint`
  - added the new optional request property `messages/items/anyOf[subschema #2: ChatCompletionAssistantMessage]/content/anyOf[subschema #2]/items/prompt_cache_breakpoint`
  - added the new optional request property `messages/items/anyOf[subschema #3: ChatCompletionUserMessage]/content/anyOf[subschema #2]/items/anyOf[subschema #1: ChatCompletionContentPartText]/prompt_cache_breakpoint`
  - added the new optional request property `messages/items/anyOf[subschema #4: ChatCompletionSystemMessage]/content/anyOf[subschema #2]/items/prompt_cache_breakpoint`
  - added the new optional request property `prompt_cache_options`
  - added the new `max` enum value to the request property `reasoning/anyOf[subschema #1: ChatReasoningSettings]/effort/anyOf[subschema #1]/`
  - added the new `max` enum value to the request property `reasoning_effort/anyOf[subschema #1]/`
  - added the new `minimal` enum value to the request property `reasoning/anyOf[subschema #1: ChatReasoningSettings]/effort/anyOf[subschema #1]/`
  - added the new `minimal` enum value to the request property `reasoning_effort/anyOf[subschema #1]/`

---

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