Z.AI: GLM 5.1
zai/glm-5.1Created Apr 7, 2026|200K context context|Starting at $1.4/M input tokens|Starting at $4.4/M output tokens
GLM 5.1 advances Z.AI’s coding and long-horizon task capabilities, with a focus on sustained autonomous work over extended engineering tasks. It is designed for planning, executing, and refining complex projects while maintaining reliable reasoning across long interactions.
Providers for GLM 5.1
Routes requests to the best providers that are able to handle your prompt size and parameters.
| Provider | Context Window | Max Output | Input Price | Output Price | Cache Read | Cache Write |
|---|---|---|---|---|---|---|
Z.AI | 200K | 64K | $1.4 | $4.4 | $0.182 | — |