Anthropic releases ‘safe’ version of Claude Mythos AI model to public
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Source: The Guardian TechnologyJune 9, 2026
Summary
Anthropic released Fable 5, the first publicly available model from its advanced Mythos class of AI systems, after restricting access to it for months due to cybersecurity concerns. The company is making the model available to the general public while limiting its use in sensitive areas.
Classification
Attack SophisticationModerate
AI Component TargetedModel
Affected Vendors
Anthropic
Related Issues
Monthly digest — independent AI security research
Original source: https://www.theguardian.com/technology/2026/jun/09/anthropic-claude-mythos-ai-model
First tracked: June 10, 2026 at 08:00 AM
Classified by LLM (prompt v3) · confidence: 85%