Anthropic
Anthropic: Claude Fable 5.1
anthropic/claude-fable-5.1-20260831
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Anthropic: Claude Fable 5.1 usage over time
OpenRouter share of tokens, by day.
Anthropic: Claude Fable 5.1 holds 0.26% today, down from 0.37% at the start of the visible window.
Rank history
Adoption curve vs the pantheon
Anthropic: Claude Fable 5.1's share plotted against days since first tracked, overlaid on other current leaders on the same axis. The question every new-model page asks: is this one going to make it?
Citable stat
As of 2026-09-05, Anthropic: Claude Fable 5.1 holds 0.3% of OpenRouter token share, down 0.11pp over 30 days. Source: Tidelines (OpenRouter).
Where to run it
Anthropic: Claude Fable 5.1 pricing by provider
Per-provider pricing, context, and uptime via OpenRouter. Sorted by output price.
Anthropic: Claude Fable 5.1 is served by 4 tracked endpoints on OpenRouter. The cheapest output price is $50.00 per million tokens from Azure, and the most expensive is $50.00 from Google. The largest context window offered is 1000k tokens. Prices are list rates and refresh daily.
| Provider | Input $/M | Output $/M | Context | Uptime |
|---|---|---|---|---|
| Azure | $10.00 | $50.00 | 1000k | — |
| Anthropic | $10.00 | $50.00 | 1000k | 99.93% |
| Amazon Bedrock | $10.00 | $50.00 | 1000k | — |
| $10.00 | $50.00 | 1000k | 99.13% |