UK gov's Mythos AI tests help separate cybersecurity threat from hype
By Kyle Orland
As first reported in Reddit yesterday, The UK AI Security Institute (AISI) published independent evaluations of Anthropic's Mythos Preview model, finding it comparable to other frontier models on individual cybersecurity tasks but notably capable at chaining multi-step attack sequences. This is a significant government safety evaluation adding independent verification to Anthropic's own claims about the model's capabilities.