AI news briefings

OpenAI's longtime COO Brad Lightcap steps down as the AI lab's leadership shake-up continues, while Meta unveils Muse Glimmer — an open-weight model that runs AI agents on-device — and NVIDIA's $70B bet on OpenAI, Anthropic, and others comes into focus. SpaceXAI's Grok Bot enters the agent race, near-autonomous AI agents hit Taiwan's nuclear safety agency, Anthropic doubles down on invisible text watermarks, and Google's Pixel 11 puts Gemini at the center of the AI phone battle.

Google's DeepMind undergoes its biggest leadership shake-up ever — Demis Hassabis steps back as CEO, Jeff Dean exits after 27 years, and Gemini 3.5 Pro is reportedly shelved for a Gemini 4 pivot. Meta unveils Zuckerberg's 'personal intelligence' vision with the Glimmer model, OpenAI brings its Daybreak cyber agents to AWS, and Taiwan suffers an unprecedented autonomous AI cyber attack. Plus: Cognition eyes a $40B valuation, Bank of America commits $250B to AI infrastructure, and Foxconn's profit surges on AI demand.

OpenAI COO Brad Lightcap steps down as a leadership shake-up continues, NVIDIA pushes toward a 1-trillion-parameter Nemotron 4 open model and mobilizes $500B+ with Wall Street for AI infrastructure, and Google's Gemini app crosses 1 billion users. Also: Anthropic's no-opt-out Claude watermarking, a $9B Riot-Anthropic deal, and ChatGPT arrives on Linux.

Anthropic turns Claude Code's auto mode on by default, OpenAI ships a new cyber-defense model as AI-led attacks multiply, and DeepMind's hurricane forecasting breakthrough surprises weather scientists. Also: OpenAI's lifelike smart speaker, Meta's open-model strategy reboot, the viral Claude gym-hack incident, and a $400M bet on a chip startup.

NVIDIA partners with Apollo, BlackRock, Blackstone, Brookfield, Goldman Sachs and KKR to mobilize over $500 billion for AI infrastructure, while US House Democrats press Anthropic and OpenAI over rogue AI agents. OpenAI expands its Daybreak cyber-defense initiative, Bernie Sanders calls for an AI development pause, and Meta's new Glimmer model hints at Zuckerberg's personal-intelligence vision.

Meta releases an open-weight version of its most powerful AI model as Mark Zuckerberg argues concentration of control is AI's biggest risk, while OpenAI tightens safeguards on its Astra model over critical cyber capabilities. Google DeepMind undergoes a leadership reshuffle with Demis Hassabis handing over to Koray Kavukcuoglu and Jeff Dean exiting, TSMC reports 44.7% revenue growth on AI demand, and Anthropic pushes Claude Code toward full autonomy.