| Feature | GLM 5.3 | Qwen 3.8 Max |
|---|---|---|
| AI Lab | Z.ai | Alibaba |
| Context Size | 1,000,000 tokens | 262,144 tokens |
| Max Output Size | 131,072 tokens | 32,768 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | No | Yes |
| Description | GLM-5.3 uses the same base model as GLM-5.2 — every gain comes from post-training. Compared with GLM-5.2, it is significantly better at complex coding and long-horizon agentic tasks. 743B parameter MoE with a 1M-token context window. | Alibaba's most capable closed flagship, built on the Qwen3.5 architecture with major gains in coding, research and long-horizon agentic work. Vision, function calling and a 262k context window. Available exclusively through Fireworks AI. |
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