---
title: "Changes to POST /paas/v4/chat/completions"
method: POST
path: "/paas/v4/chat/completions"
---

# Changes to POST /paas/v4/chat/completions

`POST /paas/v4/chat/completions`

> Every recorded change to this operation, newest first.
> 10 revisions in range; 1 not diffed.

## Timeline

Changed in 8 of 10 revisions.

- **2026-11-02** `79eaab7f193b`: 1 info
- **2026-10-10** `7f6180b5813f`: 13 breaking, 1 warning
- **2026-09-18** `8741c036978c`: 2 info
- **2026-08-28** `1269b1dce35d`: 1 info
- **2026-08-27** `0240b9ded09d`: 5 info
- **2026-08-19** `242a797fa80b`: 2 info
- **2026-07-13** `62622aa47d10`: 3 info
- **2026-05-15** `4033afc58a52`: 2 breaking, 2 warning

## Changes

- **2026-11-02** `79eaab7f193b`: 1 info
  - added the new `glm-5.3-flashx-legal` enum value to the request property `oneOf[subschema #2: Vision Model]/model`
- **2026-10-10** `7f6180b5813f`: 13 breaking, 1 warning
  - removed the enum value `autoglm-phone-multilingual` of the request property `oneOf[subschema #2: Vision Model]/model`
  - removed the enum value `glm-4-32b-0414-128k` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5-air` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5-airx` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5-flash` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5-x` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.5v` of the request property `oneOf[subschema #2: Vision Model]/model`
  - removed the enum value `glm-4.6v` of the request property `oneOf[subschema #2: Vision Model]/model`
  - removed the enum value `glm-4.6v-flash` of the request property `oneOf[subschema #2: Vision Model]/model`
  - removed the enum value `glm-4.6v-flashx` of the request property `oneOf[subschema #2: Vision Model]/model`
  - removed the enum value `glm-4.7-flash` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the enum value `glm-4.7-flashx` of the request property `oneOf[subschema #1: Text Model]/model`
  - removed the optional property `choices/items/message/reasoning_content` from the response with the `200` status
- **2026-09-18** `8741c036978c`: 2 info
  - the `model` request property default value changed from `glm-5.3-flash` to `glm-5.3-flashx`
  - added the new `glm-5.3-flashx` enum value to the request property `oneOf[subschema #2: Vision Model]/model`
- **2026-08-28** `1269b1dce35d`: 1 info
  - added `subschema #5: File ID` to the `oneOf[subschema #2: Vision Model]/messages/items/oneOf[subschema #1: User Message]/content/oneOf[subschema #1]/items/` request property `oneOf` list
- **2026-08-27** `0240b9ded09d`: 5 info
  - added the new optional request property `oneOf[subschema #2: Vision Model]/reasoning_effort`
  - the `model` request property default value changed from `glm-5v-turbo` to `glm-5.3-flash`
  - the `temperature` request property default value changed from `0.8` to `1`
  - the `top_p` request property default value changed from `0.6` to `0.95`
  - added the new `glm-5.3-flash` enum value to the request property `oneOf[subschema #2: Vision Model]/model`
- **2026-08-19** `242a797fa80b`: 2 info
  - the `model` request property default value changed from `glm-5.2` to `glm-5.3`
  - added the new `glm-5.3` enum value to the request property `oneOf[subschema #1: Text Model]/model`
- **2026-07-13** `62622aa47d10`: 3 info
  - added the new optional request property `oneOf[subschema #1: Text Model]/reasoning_effort`
  - the `model` request property default value changed from `glm-5.1` to `glm-5.2`
  - added the new `glm-5.2` enum value to the request property `oneOf[subschema #1: Text Model]/model`
- **2026-05-15** `4033afc58a52`: 2 breaking, 2 warning
  - the `oneOf[subschema #1: Text Model]/request_id` request property's minLength was increased from `0` to `6`
  - the `oneOf[subschema #2: Vision Model]/request_id` request property's minLength was increased from `0` to `6`
  - the `oneOf[subschema #1: Text Model]/request_id` request property's maxLength was set to `64`
  - the `oneOf[subschema #2: Vision Model]/request_id` request property's maxLength was set to `64`

---

[Operation](https://skmtc.dev/z/apis/z-ai-api/docs/paas/v4/chat/completions/post.md) - [API](https://skmtc.dev/z/apis/z-ai-api.md) - [Page](https://skmtc.dev/z/apis/z-ai-api/changes/paas/v4/chat/completions/post)