---
title: "Changes to Universal classification"
method: POST
path: "/classifications/universal"
---

# Changes to Universal classification

`POST /classifications/universal`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 8 of 62 revisions.

- **2026-03-11** `3fc0da1b03c0`: 3 breaking
- **2026-03-09** `0768ad934de9`: 1 info
- **2026-02-04** `eb64c01e148b`: 1 warning
- **2026-02-03** `6ccc375fe062`: 1 info
- **2025-04-19** `875de0f9fdae`: 3 breaking, 1 warning, 2 info
- **2025-03-30** `15ff357f67f8`: 1 info
- **2025-03-08** `21034e5a0eb6`: 1 breaking, 7 info
- **2025-02-20** `cc4587fb9095`: 2 breaking, 2 info

## Changes

- **2026-03-11** `3fc0da1b03c0`: 3 breaking
  - the `model` request property const value `kanon-universal-classifier` was added
  - removed the enum value `kanon-universal-classifier` of the request property `model`
  - removed the enum value `kanon-universal-classifier-mini` of the request property `model`
- **2026-03-09** `0768ad934de9`: 1 info
  - the `query` request property's maxLength was increased from `5000` to `10000000`
- **2026-02-04** `eb64c01e148b`: 1 warning
  - the `chunking_options/oneOf[subschema #1: Chunking options]/overlap_tokens/oneOf[subschema #1: Non-negative integer]/` request property's min was set to `0.00`
- **2026-02-03** `6ccc375fe062`: 1 info
  - the `classifications/items/chunks/oneOf[subschema #1]/items/text` response's property pattern `\S` was added for the status `200`
- **2025-04-19** `875de0f9fdae`: 3 breaking, 1 warning, 2 info
  - added the new required request property `texts`
  - removed the required property `chunks` from the response with the `200` status
  - removed the required property `score` from the response with the `200` status
  - removed the request property `text`
  - api operation id `CreateUniversalClassification` removed and replaced with `CreateUniversalClassifications`
  - added the required property `classifications` to the response with the `200` status
- **2025-03-30** `15ff357f67f8`: 1 info
  - added the required property `chunks/oneOf[subschema #1]/items/index` to the response with the `200` status
- **2025-03-08** `21034e5a0eb6`: 1 breaking, 7 info
  - removed the required property `chunks/oneOf[subschema #1]/items/confidence` from the response with the `200` status
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#400-validation-error` for the status `400`
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#401-not-authenticated` for the status `401`
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#402-payment-required` for the status `402`
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#403-access-forbidden` for the status `403`
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#413-request-too-large` for the status `413`
  - the `type` response's property default value changed from `about:blank` to `https://docs.isaacus.com/api-reference/errors#500-internal-server-error` for the status `500`
  - added the required property `chunks/oneOf[subschema #1]/items/score` to the response with the `200` status
- **2025-02-20** `cc4587fb9095`: 2 breaking, 2 info
  - removed the enum value `kanon-uniclassifier` of the request property `model`
  - removed the enum value `kanon-uniclassifier-mini` of the request property `model`
  - added the new `kanon-universal-classifier` enum value to the request property `model`
  - added the new `kanon-universal-classifier-mini` enum value to the request property `model`

---

[Operation](https://skmtc.dev/isaacus-dev/apis/isaacus-api/docs/classifications/universal/post.md) - [API](https://skmtc.dev/isaacus-dev/apis/isaacus-api.md) - [Page](https://skmtc.dev/isaacus-dev/apis/isaacus-api/changes/classifications/universal/post)