GLM-5.3 Highspeed
Flagship GLM model for long-horizon coding, agents, and complex project delivery
Model facts
- Context window
- 1M tokens
- Maximum output
- 131K tokens
- Cheapest paid input
- free per 1M tokens
- Cheapest paid output
- free per 1M tokens
- Open weights
- yes
- Providers
- 2
Capabilities and modalities
reasoning, tool calling, structured output, temperature control, open weights, text.
Observed price history
- 2026-08-26: free input / free output per 1M tokens
API providers
- Z.AI Coding Plan — model id glm-5.3-highspeed; free input / free output per 1M tokens; provider documentation
- Zhipu AI Coding Plan — model id glm-5.3-highspeed; free input / free output per 1M tokens; provider documentation