Claude Fable 5.1
Updated Oct 24, 2026. Checked daily.
Anthropic
Claude app, Pro plan, choose Fable 5.1.
Paid plan
- Cost
- Pro is $20/month. Fable draws on usage credits. API is $10 per million input tokens and $50 per million output.
- Free tier
- Not on the free plan. Fable needs Pro or higher.
- Privacy default
- Anthropic says Free, Pro, and Max chats are used for training only if you allow it, and you choose at signup. The toggle has been reported as on by default, so check it. Settings, then Privacy. Turn off Help improve Claude. Source
Where it ranks
Leader history
- Oct 23, 2026. Claude Fable 5.1 is the first leader on record. Vals LegalBench 88.5% (top 2 of 150+ models)
Questions
Is Claude Fable 5.1 good for legal & long documents?
Claude Fable 5.1 is the leader pick for legal & long documents. Tied at the top of LegalBench, with precise reading of dense documents.
How much does Claude Fable 5.1 cost?
Pro is $20/month. Fable draws on usage credits. API is $10 per million input tokens and $50 per million output.
Does Claude Fable 5.1 train on my chats?
Anthropic says Free, Pro, and Max chats are used for training only if you allow it, and you choose at signup. The toggle has been reported as on by default, so check it. Settings, then Privacy. Turn off Help improve Claude.