Anthropic
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Claude Fable 5.1 is tuned for long-context creative and analytical work, with more efficient reasoning and improved coding accuracy over Fable 5. Supports reasoning and web search.
Provider
Anthropic
Tier
Included from the Basic plan
Specs
- Context window
- 1M tokens
- Reasoning
- Yes
- Web search
- Yes
Ideas to try
Step through a tough problem
Work through this carefully, show your reasoning, and state your confidence at the end:
Find the flaw
Here is an argument. Find weak points, hidden assumptions, and a stronger alternative:
Research with sources
Research the latest on [topic]. Summarize key facts and note what is still uncertain.
Compare options today
Compare the current options for [category]. What changed recently, and what would you pick for a careful buyer?
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FAQ
Claude Fable 5.1 FAQ
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