Anthropic to resume external testing of AI models following security incidents r

Anthropic on Friday said it's cutting off live internet access for all its internal evaluations until further notice following the discovery of new incidents in which its

Anthropic's Mythos AI model, a powerful cybersecurity tool that the company said could be dangerous in the wrong hands, has been accessed by a "small group of unauthorized users,"

<!-- SC_OFF --><div class="md"><p>Anthropic's new cybersecurity-focused Al, Mythos, was reportedly accessed by unauthorized users through a third-party vendor environment (Mercor)

OpenAI, Anthropic ventures in talks to buy AI services firms, sources say reut.rs/49cSZFq

For founders and investors, Anthropic's new offering signals that the AI platform wars are expanding downmarket and that the next major battleground for user acquisition isn't the

Anthropic rolls out Opus 5 AI model in efficiency upgrade reut.rs/4fzmNhQ

In a review triggered by OpenAI's Hugging Face incident, Anthropic discovered three of its AI models had breached real organizations during third-party evaluations.

OpenAI is preparing to launch a new frontier cybersecurity model, GPT-5.5-Cyber. CEO Sam Altman said the model will not be available to the general public, but will be first