GLM-5 is Z.ai’s flagship open-source foundation model engineered for complex systems design and long-horizon agent workflows. Built for expert developers, it delivers production-grade performance on large-scale programming tasks, rivaling leading...
Z.ai: GLM 5 — Z.ai. Context window 204,800 tokens. API pricing (per 1M tokens): Input $0.6, Output $1.92. License: Proprietary. LMArena 1,446. GPQA Diamond 87.8%.
| Provider | Z.ai |
|---|---|
| API model ID | z-ai/glm-5 |
| Tier | Frontier |
| Context window | 204,800 tokens |
| Max output | 128,000 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $0.6 |
| API pricing (per 1M tokens) · Output | $1.92 |
| LMArena | 1,446 (glm-5) |
| GPQA Diamond | 87.8% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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