GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
Z.ai: GLM 5.3 (batch) — Z.ai. Context window 1,048,576 tokens. API pricing (per 1M tokens): Input $0.45, Output $2. License: Proprietary. LMArena 1,471. GPQA Diamond 90.9%.
| Provider | Z.ai |
|---|---|
| API model ID | z-ai/glm-5.3:batch |
| Tier | Frontier |
| Context window | 1,048,576 tokens |
| Max output | 131,072 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $0.45 |
| API pricing (per 1M tokens) · Output | $2 |
| LMArena | 1,471 (glm-5.3-max) |
| GPQA Diamond | 90.9% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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