Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher
Private, domain-specific benchmarks in legal, tax, and finance.
Claude Fable 5
Claude Fable 5 by Anthropic — specifications, pricing and published benchmark scores, with community links.
| Organization | Anthropic |
|---|---|
| Released | 2026-06 |
| License | Proprietary |
| Open weights | No |
| Context window | 1,000,000 tokens |
| Modality | text, image, pdf |
| Input price | $10 / 1M |
| Output price | $50 / 1M |