POSTopenai
/v1/chat/completionsGLM-5.3
glm-5.3GLM-5.3 is Z.ai’s latest flagship model built for advanced coding, software engineering, and long-horizon agent tasks. With a 1M-token context window, up to 128K output tokens, strong reasoning, and tool-use capabilities, it is ideal for Coding Agents, complex development workflows, and multi-step automation.
Total Context
1Mtokens
Max Output
128Ktokens
Released
Aug 19, 2026
Modalities
GLM-5.3 Price
| Input Price | Output Price | Cache Read |
|---|---|---|
| $1.1429/M | $4/M | $0.2857/M |
How do I use GLM-5.3 through the API?
POSTopenai-response
/v1/responsesPOSTanthropic
/v1/messages