glm-5.1

StreamingTool callingReasoning

Integration guide

Overview

glm-5.1 is available on MAX through the OpenAI-compatible API.

Pricing

Official list prices: token prices are per 1M tokens.

Input ≤ 31,999 tokens

Input: ¥6
Output: ¥24
Cache read: ¥1.3

Input > 31,999 tokens

Input: ¥8
Output: ¥28
Cache read: ¥2

Tier	Input	Output	Cache read
Input ≤ 31,999 tokens	¥6	¥24	¥1.3
Input > 31,999 tokens	¥8	¥28	¥2

This model uses tiered pricing: the tier is chosen by the total input length of each request.

Cache read applies to prompt tokens served from the prompt cache; cache write applies to tokens written into it.

Example request

curl https://api.link-io.cloud/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "glm-5.1",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'