On June 9, 2026, Anthropic released Claude Fable 5, which was described as the most capable AI model...

Anthropic has released Claude Fable 5 on Wednesday, allowing the public to access the core architecture of its notorious 'Mythos' model

Anthropic released a 'safe' version of Claude Mythos — and changed its data retention policy for the model, too.

A paragraph buried in Fable 5’s 319-page system card revealed the model would silently downgrade its responses for certain AI development work—without telling users.

A paragraph buried in Fable 5's 319-page system card revealed the model would silently downgrade its responses for certain AI development work — without telling users.

Anthropic launches Claude Fable 5 publicly while keeping its most powerful Mythos Preview restricted, as CEO Dario Amodei warns of destabilizing AI risks.

Anthropic revised hidden AI safeguards in its Mythos and Fable models after researchers criticized covert restrictions that limited Claude's ability to help

Anthropic has to take another look at the AI restrictions for Claude Fable 5, amid significant public backlash over secretive practices.

How Anthropic decides which questions are too dangerous for Claude to answer.

Restrictions on access to the powerful model, ‘targeted at Chinese AI labs’, are sparking debate about safety, innovation and open research.

Coming just three days after its launch, the sudden block of Anthropic's Fable model has become a larger fight over who decides when an AI system is too powerful for open access.

Anthropic's Fable AI shut down by White House. Directive limiting access to US nationals reveals a tension: when AI safety advocacy meets government regulation.

In an interview hours before the U.S. government issued a directive to disable Anthropic’s newest AI model, the company’s Chief Commercial Officer told Forbes about the tradeoffs…

The U.S. government ordered Anthropic to pull Fable 5 and Mythos 5 over national security concerns just days after its CEO called for exactly this kind of oversight.

Anthropic's Fable AI was shut down following a U.S. government directive limiting access to U.S. nationals, exposing growing tensions between AI safety and regulation.

Anthropic isn't hiding its frustration. "We disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of…

A US government export directive forces Anthropic to shut down Fable 5 and Mythos 5. The company speaks of a misunderstanding.

On June 9, 2026, Anthropic released Claude Fable 5, which was described as the most capable AI model...

An alleged jailbreak triggered a national security directive that forced the model to be pulled.

Anthropic disabled Claude Fable 5 and Mythos 5 after a US Commerce Department directive banned foreign nationals from accessing the models, marking a major

Anthropic’s Mythos Offensive: Between One-Shot Wonders, US Export Controls, and the Question of Who...