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 version of its technology available to the general public on Tuesday while restricting its use in sensitive areas.

Dubbed Fable 5, the model is the first to be made widely available from the company’s new Mythos class – its most advanced lineup of AI technology, unveiled in April but restricted to a small set of partner institutions for months over cybersecurity concerns.