Z.AI
GLM 5.1 Thinking
Strong GLM coding model for agentic engineering, terminals, and repository generation
Model facts
- Context window
- 2K tokens
- Maximum output
- 131K tokens
- Cheapest paid input
- $0.75 per 1M tokens
- Cheapest paid output
- $2.6 per 1M tokens
- Open weights
- yes
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, temperature control, open weights, text.
Observed price history
- 2026-08-24: $0.75 input / $2.6 output per 1M tokens
API providers
- NanoGPT — model id z-ai/glm-5.1:thinking; $0.75 input / $2.6 output per 1M tokens; provider documentation