California Gov. Gavin Newsom signs bills restricting "addictive" social media features for under-16s and limiting minors' interactions with chatbots (Colin Lecher/CalMatters)

Anthropic stopped several attempts to weaponize its Claude model for cyberattacks, influence operations, surveillance, and biological-research misuse, terminating ambiguous projects. Chinese firms Moonshot and DeepSeek used thousands of fake accounts and millions of real queries to extract Claude’s capabilities; DeepSeek released a V4.1-Flash model with a 552-billion-parameter backbone and a 1-million-token context window. OpenAI unveiled a ChatGPT variant for financial services built with Morgan Stanley and Evercore, and board member Paul Christiano joined Anthropic’s Safety and Security Committee.