---
title: "Changes to List the messages of a stored chat completion"
method: GET
path: "/v1/chat/completions/{completion_id}/messages"
---

# Changes to List the messages of a stored chat completion

`GET /v1/chat/completions/{completion_id}/messages`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 30 revisions.

- **2026-09-23** `824e59bfac1e` — 7 breaking, 1 warning, 1 info
- **2026-09-11** `ce3609b10ef1` — 1 info
- **2026-08-19** `f66774ddecfc` — 1 info
- **2026-08-13** `d47e1d852549` — 1 info

## Changes

- **2026-09-23** `824e59bfac1e` — 7 breaking, 1 warning, 1 info
  - added `#/components/schemas/FileCitation, #/components/schemas/UrlCitation` to the `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/` response property `oneOf` list for the response status `200`
  - the `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/` response's property type changed from `object` to no type for status `200`
  - removed the required property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/chunk_id` from the response with the `200` status
  - removed the required property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/file_id` from the response with the `200` status
  - removed the required property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/filename` from the response with the `200` status
  - removed the required property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/index` from the response with the `200` status
  - removed the required property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/store_id` from the response with the `200` status
  - removed the optional property `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/type` from the response with the `200` status
  - added discriminator to `data/items/oneOf[subschema #4: AssistantMessage]/annotations/items/` response property for the response status `200`
- **2026-09-11** `ce3609b10ef1` — 1 info
  - added the optional property `data/items/oneOf[subschema #4: AssistantMessage]/annotations` to the response with the `200` status
- **2026-08-19** `f66774ddecfc` — 1 info
  - added the optional property `data/items/oneOf[subschema #4: AssistantMessage]/reasoning_content` to the response with the `200` status
- **2026-08-13** `d47e1d852549` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/mixedbread/apis/mxbai-omni/docs/v1/chat/completions/:completion_id/messages/get.md) · [API](https://skmtc.dev/mixedbread/apis/mxbai-omni.md) · [Page](https://skmtc.dev/mixedbread/apis/mxbai-omni/changes/v1/chat/completions/:completion_id/messages/get)