GLM-5.1
by Alibaba (China) · family glm · listed Apr 2026RTW
Flagship GLM model for hybrid reasoning, coding, and agentic engineering
Current rates USD per 1M tokens
Input$0.87
Output$3.48
Cache read$0.17
Cache write—
Against the market
On the record
- Model id
glm-5.1- Context window
- 203K tokens
- Max output
- 128K tokens
- Input modalities
- text
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- yes
- Knowledge cutoff
- —
- Released
- 2026-04-14
- Last updated
- 2026-04-14
- Provider docs
- www.alibabacloud.com/help/en/model-studio/models
Back of the envelope
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