Fable 5
Anthropic's Claude Fable 5 is a de-fanged, public version of the Mythos-class AI model, restricted from discussing dangerous topics like cybersecurity. It represents the biggest capability step up since Opus 4.5, but paid subscribers have limited acc
Signal Radar
Five-axis snapshot of this entity's footprint
Mentions × Lab Attention
Weekly mentions (solid) and average article relevance (dotted)
Timeline
2- Product LaunchJun 9, 2026
Fable 5 beta available for testing until June 22nd, then withdrawn from public access.
View source - Product LaunchJun 9, 2026
Public Mythos version codenamed 'Fable' released at 2x Opus pricing.
View source- amount:
- 2x Opus pricing
Recent Articles
3Anthropic's Fable 5 Beta Shows 10x Drug Design Speedup Ahead of IPO
+Anthropic's Fable 5 beta achieved 10x speedup in protein design before being pulled from testing, signaling enterprise monetization ahead of IPO.
74 relevanceFable 5: Claude's Biggest Leap Since Opus 4.5, Says Beta Tester
+Beta tester says Fable 5 is Claude's biggest leap since Opus 4.5, with emergent debugging and design capabilities.
85 relevanceAnthropic Releases Claude Mythos Publicly as 'Fable' at 2x Opus Price
+Anthropic released Claude Mythos publicly as 'Fable' at 2x Opus pricing, targeting agent workflows with strong safety limits.
95 relevance
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AI Discoveries
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Sentiment History
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W24 | 0.70 | 3 |