Anthropic on Tuesday released Claude Fable 5, a new Mythos-class model that the AI company has made safe for general and larger use. Fable 5’s capabilities exceed those of any generally available ...

Further, for specialised security professionals who need the guardrails lifted, Anthropic also launched Claude Mythos 5 – the exact same model as Fable 5 but with the defensive boundaries removed for ...

Anthropic today announced the launch of Claude Fable 5, a Mythos-class model that it says is safe for general use. According to Anthropic, Fable 5's capabilities exceed those of any model it has made ...

Anthropic released its latest model Tuesday afternoon, heralding the public’s first access to the AI company’s most powerful class of AI systems. Subscribe to read this story ad-free Get unlimited ...

It says new safeguards make it possible to release a Mythos-class model it previously said was too risky to make public. It says new safeguards make it possible to release a Mythos-class model it ...

Anthropic said its powerful new AI model, Mythos, could be dangerous in the wrong hands. WSJ’s Nicole Nguyen explains why and shares some cybersecurity tips for the average tech user. Photo: Sean ...

Anthropic Tuesday publicly released Claude Fable 5, its first “Mythos-class” model that it says surpasses its previous frontier Opus models in overall capabilities. But the model’s launch today comes ...

For developers, Fable 5 is available through the Claude API as claude-fable-5. Anthropic says Fable 5 is fully available today on the Claude API and on consumption-based Enterprise plans. For ...

Back in April, Anthropic unveiled its Claude Mythos AI model that it said was too powerful to publicly release. Instead, the company has shared access with software vendors, including Apple, in an ...

As AI models get more powerful, there’s also going to be a level of danger. Anthropic announced Mythos not long ago as a model that was too dangerous for public availability, but a new version of that ...

Anthropic launched Claude Fable 5 on June 9, 2026, calling it the most capable model it has ever released to the general public. Alongside it, the company released Claude Mythos 5 for a small group of ...

Did our AI summary help? Anthropic has opened public access to Fable 5, describing it as the first widely available model from its most advanced Mythos family while placing significant restrictions on ...