---
title: "Changes to Chat Classifications"
method: POST
path: "/v1/chat/classifications"
---

# Changes to Chat Classifications

`POST /v1/chat/classifications`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 14 revisions.

- **2026-10-12** `6c349f3bdef6`: 20 info
- **2026-07-13** `5a5c361558bb`: 22 info
- **2026-04-07** `ff8a7389b7a4`: 1 info

## Changes

- **2026-10-12** `6c349f3bdef6`: 20 info
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/` request property
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/` request property
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/` request property
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/` request property
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/` request property
  - added `resource, resource_link` discriminator mapping keys to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/` request property
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added the new `mistral_mcp` enum value to the request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #2: ToolReferenceChunk]/tool/anyOf[subschema #1: BuiltInConnectors]/`
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
  - added `#/components/schemas/ResourceChunk, #/components/schemas/ResourceLinkChunk` to the `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/` request property `oneOf` list
- **2026-07-13** `5a5c361558bb`: 22 info
  - added the new optional request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - added the new optional request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/signature`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #1: InstructRequest]/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #1: SystemMessage]/content/anyOf[subschema #2]/items/oneOf[subschema #2: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #2: UserMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #3: AssistantMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #4: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
  - request property `input/anyOf[subschema #2]/items/messages/items/oneOf[subschema #4: ToolMessage]/content/anyOf[subschema #3]/items/oneOf[subschema #6: ThinkChunk]/thinking/items/anyOf[subschema #3: ReferenceChunk]/reference_ids/items/` list-of-types was widened by adding types `string` to media type `application/json`
- **2026-04-07** `ff8a7389b7a4`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/mistral/apis/mistral-ai-api/docs/v1/chat/classifications/post.md) - [API](https://skmtc.dev/mistral/apis/mistral-ai-api.md) - [Page](https://skmtc.dev/mistral/apis/mistral-ai-api/changes/v1/chat/classifications/post)