Model Profile
Claude Fable 5
Anthropic's most capable widely released model, excelling at advanced reasoning, nuanced writing, and careful analysis.
Provider
Anthropic
Workflow
AI Chat
Key features
4
About Claude Fable 5
Claude Fable 5 is Anthropic's most capable widely released model, built for advanced reasoning, deep analysis, polished writing, and complex multi-step work. It uses adaptive thinking and supports a one-million-token context window. On Unify, Fable is available alongside Opus, Sonnet, and other leading AI models.
Key Features
Advanced reasoning
Polished prose
Deep analysis
Adaptive thinking
Best For
Advanced reasoning
Complex research & synthesis
Long-form writing
Large document and codebase analysis
Technical Specifications
Pros
Anthropic's highest widely released capability
Adaptive thinking
1M context window
Strong writing and analysis
Cons
Premium pricing
Can be overly cautious
May be slower on complex requests
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Popular Use Cases
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