DeepSeek V4.1 Flash vs Claude Fable 5.1
| DeepSeek DeepSeek V4.1 Flash | Anthropic Claude Claude Fable 5.1 | |
|---|---|---|
| Vendor | DeepSeek | Anthropic Claude |
| Context window | 1,040,000 | 1,000,000 |
| Max output | 384,000 | 128,000 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text | text, image, file |
| Output | text | text |
| Released | 2026-09-10 | 2026-09-01 |