Detailed comparison of capabilities, features, and performance.
| Feature | Claude 4.6 Sonnet Max | Claude Fable 5 |
|---|---|---|
| AI Lab | Anthropic | Anthropic |
| Context Size | 1,000,000 tokens | 1,000,000 tokens |
| Max Output Size | 16,000 tokens | 128,000 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | Yes | Yes |
| Description | The latest Sonnet 4.6 model from Anthropic with effort set to max for highest reasoning and creativity, ideal for complex agentic tasks | Anthropic's most capable widely released model, with a 1M token context window, 128k max output, and always-on adaptive thinking. |
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