GLM 5.1: price, context window and licence
| Input | $1.40 per million tokens |
|---|---|
| Output | $4.40 per million tokens |
| Cached input | $0.26 per million tokens |
| Context window | 205K tokens |
| Licence | open weights |
| Vendor | Z.ai |
Where these figures come from
Taken from the OpenRouter model registry, which lists what providers charge per token, and converted to a per-million rate. Checked 30 Oct 2026. Where OpenRouter publishes no cache-read rate, the cell above is blank rather than inferred.