Z.AI
zai-org/GLM-5.1
Flagship GLM model for hybrid reasoning, coding, and agentic engineering
Model facts
- Context window
- 205K tokens
- Maximum output
- 205K tokens
- Cheapest paid input
- $1.4 per 1M tokens
- Cheapest paid output
- $4.4 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: $1.4 input / $4.4 output per 1M tokens
API providers
- SiliconFlow — model id zai-org/GLM-5.1; $1.4 input / $4.4 output per 1M tokens; provider documentation