Claude Fable 5.1 vs Qwen3.8-Max
Claude Fable 5.1 (Anthropic) and Qwen3.8-Max (Alibaba Qwen) compared on price, context window, speed and independent benchmarks. Claude Fable 5.1 scores higher on the Artificial Analysis Intelligence Index (53.4 vs 45.4), while Qwen3.8-Max is 6.7× cheaper on a blended basis. Pick Claude Fable 5.1 for the hardest tasks and Qwen3.8-Max when cost dominates.
| Claude Fable 5.1 | Qwen3.8-Max | |
|---|---|---|
| Provider | Anthropic | Alibaba Qwen |
| Input $/1M | $10.0 | $2.00 |
| Output $/1M | $50.0 | $6.00 |
| Blended $/1M (3:1) | $20.0 | $3.00 |
| Cached input $/1M | $0.25 | $0.25 |
| Context window | 1M | 1M |
| Knowledge cutoff | 2026-06 | — |
| License | proprietary | proprietary |
| Speed (tok/s) | 67 | 39 |
| Artificial Analysis Intelligence Index | 53.4 | 45.4 |
| LMArena Elo | 1508 | 1481 |
| GPQA Diamond | 93.7% | 92.8% |
| Humanity's Last Exam | 59.1% | 43.1% |