Claude Fable 5.1 vs Claude Opus 4.5
| Claude Fable 5.1 | Claude Opus 4.5 | |
|---|---|---|
| Coding index | 84.2 | 44.0 |
| Benchmarks behind it | Verified, 5 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $50.00 | $25.00 |
| Cost per solved task | Not computable | $1.37 |
| Context window | 1M | 200K |