Anthropic's Claude Mythos , which the company maintains is too powerful to be released generally, already appears to have gained new capabilities. In a blog post on Wednesday, the UK AI Security Institute AISI reported that it had tested a newer version of Mythos, which outperformed both its earlier results and OpenAI's GPT 5.5 just a month after Mythos' initial release. Also: Apple, Google, and Microsoft join Anthropic's Project Glasswing to defend...
