GLM 5.2 (free)
Z.AI
z-ai/glm-5.2:freeThis is the free OpenRouter endpoint for Z.ai's GLM-5.2 flagship model, offering the same 1M-context, MIT-licensed coding and agentic-reasoning capabilities at no token cost. Free access is rate-limited, making it best suited for experimentation and low-volume use rather than production workloads.
Cost rate
Free
Context
256K
Released
Jun 16, 2026
Input
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Output
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Support
ReasoningTool callingStructured outputs