The tech giant Anthropic has unveiled a new tool called the Jacobian lens, or J-lens, that provides unprecedented insights into how its large language model, Claude, operates. The J-space discovered by researchers contains words related to responses Claude is working on but may not ultimately produce – if Claude were a person, these hidden words would reveal what's on its mind before it speaks.

Meanwhile, OpenAI has unveiled its long-awaited 'super app,' ChatGPT Work, which blends chatbot capabilities with coding tools and new models. The app is designed to assist users in their work, arriving the same day as the release of GPT 5.6 models. It also includes a fully automated researcher component.

Elsewhere, humanoids have performed teleoperated surgery on living animals for the first time, removing gallbladders from pigs. SK Hynix has landed the largest US listing by a foreign company, raising $26.5 billion in funds with its jumbo share sale. Meanwhile, OpenAI and Google have sold AI models to blacklisted China groups via subsidiaries of Alibaba, Baidu, and Tencent.

The article ends with a provocative quote from Vijay Janapa Reddi, an engineering professor at Harvard University, who is skeptical about grand plans for AI, and a deep dive into how pigeons inspired reinforcement learning techniques. Finally, the piece concludes with a reflection on how we should thank pigeons for our AI breakthroughs.