Claude Fable 5.1 vs Claude Opus 5.5
| Claude Fable 5.1 | Claude Opus 5.5 | |
|---|---|---|
| Coding index | 89.1 | 92.2 |
| Benchmarks behind it | Partial, 2 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $50.00 | $20.00 |
| Cost per solved task | Not computable | Not computable |
| Context window | 1M | 1M |