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

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 faces pushback over Claude Mythos 5's stricter safety classifiers, mandatory data retention, and token inefficiency that frustrate advanced AI

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.

Anthropic built Claude Fable 5 curbs to keep China's AI labs out. The fiercest backlash came from Western researchers, and the company has already blinked.

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

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…

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

Anthropic pushed back against what it described as an overreach, saying the vulnerability cited is already widespread across the industry.

The Trump administration gave Anthropic 90 minutes to restrict its Fable 5 and Mythos 5 AI models, citing national security concerns over potential China

Here's how Anthropic and OpenAI's most powerful AI models stack up.

An “export control directive” for Anthropic’s Fable and Mythos models highlights the chaotic, fast-changing state of AI regulation.

Fable 5 crushed every benchmark, redefined what AI coding assistants could do, and disappeared before most developers even got to try it. Here's what we lost.