Detailed comparison of capabilities, features, and performance.
| Feature | DeepSeek V4 Pro 0813 | Claude Fable 5 |
|---|---|---|
| AI Lab | DeepSeek | Anthropic |
| Context Size | 1,000,000 tokens | 1,000,000 tokens |
| Max Output Size | 131,072 tokens | 128,000 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | No | Yes |
| Description | DeepSeek's August 13 frontier Mixture-of-Experts model for long-context reasoning, coding, and agentic work, served through Fireworks AI with a 1M-token context window. | 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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