ModelInfo
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All models

GLM-Z1-Flash

Free reasoning model for lightweight applications. Shut down on 2025-11-15 per the official notice.

Zhipu AIglm-z1-flash2025-04-14Report incorrect data

Specs

Context
131.1K
Max output
32.8K
Input price
¥0/ 1M tokens
Output price
¥0/ 1M tokens
Released
2025-04-14

Context

Context window
131.1K
Max input
—
Max output
32.8K

Pricing · CNY / 1M tokens

Input
¥0
Output
¥0
Cache read
—
Cache write
—

Modalities

Input
Text
Output
Text

API

API types
chat

Reasoning

Reasoning
Yes
Levels
—

Info

Status
Retired
Released
2025-04-14
Knowledge cutoff
—

Features

Not published
Source · official docsVerified 2026-10-11

How to call

1 provider

zhipumodel = glm-z1-flash

chat
POSThttps://open.bigmodel.cn/api/paas/v4/chat/completions

JSON

Standard format
glm-z1-flash.json
{
  "id": "glm-z1-flash",
  "object": "model",
  "created": 1744588800,
  "owned_by": "zhipu",
  "name": "GLM-Z1-Flash",
  "api": {
    "types": [
      "chat"
    ]
  },
  "limits": {
    "context": 131072,
    "input": null,
    "output": 32768
  },
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": true,
    "efforts": []
  },
  "pricing": {
    "currency": "CNY",
    "unit": "1M_tokens",
    "input": 0,
    "output": 0,
    "cache_read": null,
    "cache_write": null
  },
  "features": [],
  "info": {
    "status": "retired",
    "release_date": "2025-04-14",
    "knowledge_cutoff": null,
    "description": "Free reasoning model for lightweight applications. Shut down on 2025-11-15 per the official notice.",
    "docs": "https://web.archive.org/web/20251115025218/https://docs.bigmodel.cn/cn/guide/models/text/glm-z1",
    "verified_at": "2026-10-11"
  }
}

Official sources

5