AI company Anthropic has disabled customer access to its most capable systems after the US government ordered it to suspend all use by foreign nationals, Anthropic said in a statement Friday evening.

After months of warning about the potential dangers of releasing Mythos, Anthropic is bringing its powerful model to the public, but with a few caveats. The new model is called Fable 5 and comes with ...

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 is changing its data retention policies for its new Mythos-class models. Credit: Nicolas TUCAT / AFP via Getty Images Anthropic just released its most powerful public model yet — Claude ...

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 ...

Anthropic is releasing Claude Fable 5 for general users. Fable 5 uses Mythos-class power with safety controls. Pricing is about twice that of Claude Opus 4.8. Anthropic has announced a defanged ...

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 ...

AI company restricted access to Fable 5, its most powerful Mythos model, for months over cybersecurity concerns Anthropic, the maker of the Claude artificial intelligence (AI) models, made a new ...

Anthropic launched its new Claude Fable 5 AI model for general public use today, and included a timelapse video of it beating Pokémon FireRed. Take a look. Here's what Anthropic had to say about its ...

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Anthropoic released Claude Fable 5 – A Mythos Class Model. It is a step up in many ways. It seens to be stepping up innovative science improvement. It still feels like very solid incremental ...

Anthropic says these fallbacks occur in fewer than 5% of sessions, meaning most users will effectively interact with the full Mythos-class model during ordinary use. Early testing by security ...