Claude Fable 5.1 vs Claude Sonnet 5.5
Claude Fable 5.1 wins 2 of 3 shared jobs.
Score by job
Scores run from 0 to 100 within each job. A gap under 3 points is too close to call. ~ marks an early read from too few benchmarks to rank. How scores work
At a glance
| Detail | Claude Fable 5.1 | Claude Sonnet 5.5 |
|---|---|---|
| Maker | Anthropic | Anthropic |
| Released | Sep 1, 2026 | Sep 28, 2026 |
| Weights | Closed | Closed |
| Price per 1M tokens | $10 in · $50 out | not listed |
| Overall rank | #1 | Not ranked yet |