MODEL SIGNAL · ANTHROPIC
Claude Fable 5
Claude Fable 5 is Anthropic's frontier multimodal model designed for autonomous knowledge work, featuring integrated reasoning capabilities and a 1-million-token context window.
CATEGORYMultimodal
CONTEXT1000000
RELEASEDJune 9, 2026
Key Features
- 1-million-token context window
- Multimodal input support (text, images, and files)
- Optimized for autonomous knowledge work and coding tasks
- Built-in reasoning mechanisms
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The designed Model Signal report for Claude Fable 5 is still in review. It will publish here after the fact and quality gates clear.