Detailed comparison of capabilities, features, and performance.
| Feature | GPT-5.5 (thinking) | Qwen 3.8 Max |
|---|---|---|
| AI Lab | OpenAI | Alibaba |
| Context Size | 1,050,000 tokens | 262,144 tokens |
| Max Output Size | 128,000 tokens | 32,768 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | Yes | Yes |
| Description | OpenAI's newest frontier model configured with high reasoning effort for the most complex professional tasks. | 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. |
View detailed specifications and capabilities
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View model details →Access both GPT-5.5 (thinking) and Qwen 3.8 Max in a single workspace without managing multiple API keys.
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