AmazonReasoning modelClaude Fable 5.1 (US)
Claude Fable 5.1 (US) is an Amazon proprietary reasoning model, released 1 Sept 2026. It is not yet ranked: no independent benchmark results so far, only pricing and metadata. At $22.00 per million tokens blended it is among the most expensive ranked models.
- Blended price
- $22.00/M
- $11.00 in · $55.00 out
- Output speed
- –
- First answer
- –
- Context
- 1M
- Released
- 1 Sept 2026
Versions
Amazon has shipped 2 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| Claude Fable 5.1 (US)this page | 1 Sept 2026 | – | – |
| Claude Fable 5 (US) | 9 Jun 2026 | – | – |
No independent quality benchmark results yet — only pricing and metadata.
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache at $0.275 per 1M. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.021 | $0.018 | – |
| Summarise a 30-page report | 12,000 / 600 | $0.165 | $0.069 | – |
| Code edit | 6,000 / 1,500 | $0.148 | $0.100 | – |
| Agentic coding session | 60,000 / 4,000 | $0.880 | $0.397 | – |
| Structured extraction | 2,000 / 200 | $0.033 | $0.017 | – |
See also
Data as of 13 Sept 2026. Compare with another model.
Cite as: BenchLeader, “Claude Fable 5.1 (US): benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/us-anthropic-claude-fable-5-1, data as of 13 Sept 2026.