# Tiering的所有文章

Anthropic Released the "Most Powerful Model," But Most People Can't Use It

In April, Anthropic launched a preview of its "Mythos" model, which was not publicly released due to its exceptional ability to autonomously discover high-risk zero-day vulnerabilities, posing a security threat if misused. It was restricted to a trusted group of security partners under "Project Glasswing." On June 10, Anthropic officially released Fable 5 and Mythos 5. They share the same underlying model but are distributed under different rules. Fable 5 is for general users, while Mythos 5 remains locked for trusted security partners. Benchmarks show Fable 5 leading in software engineering and long-task execution, with significant improvements in generating production-ready code. However, Fable 5 includes a safety classifier that automatically downgrades requests related to cybersecurity, biochemistry, or model distillation to the weaker Opus 4.8 model. This mechanism, while intended for safety, can affect the user experience and has faced criticism for being overly conservative. Pricing is another key point. Fable 5's API costs are double that of Opus 4.8. Furthermore, after a free trial period ending June 23, it will be removed from standard subscription plans, requiring users to purchase additional credits for access. This shift signals a move towards pay-as-you-go pricing for the most advanced capabilities. The strategy highlights a growing divergence in the AI industry: while some players like DeepSeek are drastically cutting prices, Anthropic is increasing them for its top-tier model, using cost as a filter for high-value users. The article suggests the AI market is stratifying, with commoditized capabilities becoming cheaper while premium, cutting-edge models command a significant price premium.

marsbit06/10 23:52