GLM 5 vs GLM-5.1
GLM 5 is cheaper on output tokens, while GLM-5.1 offers a larger context window. Choose GLM 5 or GLM-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM 5 | GLM-5.1 |
|---|---|---|
| Provider | Cortecs | Cortecs |
| Input / 1M tokens | $1.08 | $1.31 |
| Output / 1M tokens | $3.44 | $4.10 |
| Context window | 203K | 205K |
| Parameters | 744B | 754B |
| Open weights | Yes | Yes |
| Released | Feb 2026 | Apr 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.