Claude Fable 5 is the first Mythos-class AI released to the public, built on the same model family that helped uncover 271 security vulnerabilities buried in Firefox’s code for up to 20 years

Anthropic released Claude Fable 5 on Tuesday, the first model in the company’s Mythos class made available to the general public. The launch comes two months after Anthropic announced it would not release its Mythos Preview model due to concerns about its cybersecurity capabilities, and follows an earlier period in which Mythos Preview was deployed [...] The post Claude Fable 5 is the first Mythos-class AI released to the public, built on the same model family that helped uncover 271 security vu