GLM 5.2
Z.AI
z-ai/glm-5.2GLM-5.2 is Z.ai's flagship open-source model, shipping with a 1M-token context window, two selectable reasoning effort levels, and an unrestricted MIT license. It is competitive with top closed models on demanding software-engineering benchmarks, trailing Claude Opus-class models only narrowly while outperforming several rivals on coding tasks.
Cost rate
0.7x
Context
1M
Released
Jun 16, 2026
Input
Text
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.
Life, Physical, & Social Science
#24 · top 6%
Mathematical
#26 · top 7%
Legal & Government
#31 · top 8%
Medicine & Healthcare
#32 · top 9%
Performance
Median latency and throughput measured across recent requests.
Throughput113 tok/s
Latency