OpenRouter · Vercel · CC BY 4.0
Arena · CC BY 4.0
Usage › Claude Fable 5.1
Anthropic · LLM
An LLM from Anthropic, released Sep 1, 2026. It ranks #5 in performance and is outside the top 20 in usage over the last 7 days.
| Performance rank | #5 · 1501 pts · 11,241 votes |
| Usage rank | Outside top 20 |
| Output price | $50 per 1M tokens |
| Input price | $10 per 1M tokens |
| Context length | 1M tokens |
| Released | Sep 1, 2026 |
claude.ai — Open the official site, claude.ai (new tab)
Source: OpenRouter (usage Sep 25 – Oct 1 · prices), Arena (performance · quality) · CC BY 4.0. Prices are converted at fixed exchange rates.