Anthropic Releases Fable AI Model with Mythos Capabilities to Public Users
Anthropic has launched Fable 5, a new AI model that brings capabilities from its advanced Mythos system to regular Claude subscribers at no cost until June 22. Mythos was previously available only to select partners like Apple and NVIDIA through Project Glasswing, a security-focused initiative that prompted White House policy reconsideration. The release makes state-of-the-art AI capabilities more accessible while maintaining safeguards that route sensitive requests to less-capable models.
Anthropic announced Fable 5, a new model family that democratizes access to capabilities previously limited to the Mythos system, which debuted in April through Project Glasswing. In internal testing, Fable 5 outperformed Anthropic's previous flagship Opus 4.8 as well as OpenAI's GPT-5.5 and Google's Gemini 3.1 Pro, particularly excelling at software engineering, drug design, document analysis, and vision-based tasks. The company implemented conservative safeguards that automatically route certain prompts to the less-capable Opus 4.8, triggering on fewer than 5 percent of sessions on average. Claude subscribers can access Fable 5 free until June 22, after which usage will cost $10 per million input tokens and $50 per million output tokens. Anthropic simultaneously released Mythos 5 through Project Glasswing with fewer safeguards, planning wider availability through a trusted access program.
What's missing
The articles do not discuss potential competitive implications for OpenAI and Google, nor do they address broader concerns about AI capability acceleration and whether public release of such advanced models aligns with responsible AI deployment principles that some researchers advocate for.
How coverage differed
Engadget's coverage is factual and technical, focusing on capabilities and specifications without promotional language. The source balances discussion of model performance improvements with transparent acknowledgment of safeguard limitations and false positive rates, presenting both capabilities and safety considerations neutrally.
What different sources said
- EngadgetCenter
Anthropic's Fable AI brings the capabilities of its unreleased Mythos model to regular users
Related
Apple's Upgraded Siri AI Shows Practical Improvements in Real-World Testing
Apple has released an upgraded version of Siri with improved AI capabilities that can now handle practical tasks like extracting event information from emails and creating calendar entries. The new Siri can also assist with tasks like creating shopping lists, setting reminders, and providing gardening advice by referencing user information. The improvements address long-standing limitations of the original AI-enhanced Siri and demonstrate Apple's effort to make voice assistants more useful for everyday household management.
Hardware Integration Becomes Focus of Modern Hackathons as Software Development Becomes Commoditized
A hackathon participant describes how modern hackathons are shifting focus from pure software development to hardware integration projects, exemplified by their team's AI-powered rotary phone that plays music via Spotify. This shift reflects how AI tools and no-code platforms have made traditional software development faster and less challenging, freeing participants to focus on physical hardware interfaces. The trend suggests hackathons may increasingly emphasize creative hardware projects over conventional software applications as the bar for impressive software-only projects continues to lower.
Taiwan Considers Stricter AI Chip Export Controls to China to Align with U.S. Restrictions
Taiwan is considering implementing stricter export controls on AI chip sales to China to better align with U.S. semiconductor restrictions and combat smuggling. Currently, Taiwan lacks specific laws treating unauthorized AI chip exports to China as crimes, relying instead on enforcement through other existing regulations. This move matters because it would close legal gaps that allow advanced semiconductor diversion and strengthen the U.S.-Taiwan-led effort to prevent China from accessing cutting-edge AI technology for military purposes.