Wednesday, June 10, 2026

Anthropic’s Claude Fable 5 is a version of Mythos the public can access today; TechCrunch, June 9, 2026

 Rebecca Bellan , TechCrunch; Anthropic’s Claude Fable 5 is a version of Mythos the public can access today

"Anthropic is bringing its most powerful AI model to the general public for the first time, but it’s doing it with guardrails. 

On Tuesday, the AI firm launched Claude Fable 5, the first publicly available version of its Mythos model. Anthropic says Fable 5 excels at software engineering, knowledge work, and vision, but it comes with hard safety limits. In high-risk areas like cybersecurity, biology, chemistry, and distillation, the model blocks responses and falls back to Claude Opus 4.8.

Pricing for both Fable 5 and Mythos 5 is $10 per million input tokens and $50 per million output tokens, double the price of Opus 4.8. That price alone might serve as a deterrent for widespread use.

Many enterprises are growing critical of AI costs after seeing the bills come inor blowing through their yearly AI budgets early. Advanced models like Opus 4.8 can exacerbate those issues, with advanced reasoning skills that can split a single request into multiple tasks."

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