Editorial

Gemini crosses 1B monthly users, Google's fastest-growing product

The Arena

Gemini crosses 1B monthly users, Google's fastest-growing product

Google's AI had a two-front day: CEO Sundar Pichai announced that Gemini has passed 1 billion monthly users — Google's 14th product to reach the mark — while the company's medical AI, AMIE, posted what its researchers call the first expert-level results for real-time video consultations. Gemini has crossed 1 billion monthly active users, Pichai announced on X — making the assistant Google's fastest-growing product ever and its 14th to pass the billion-user mark.

OpenAI's Brad Lightcap exits after eight years to start something new

The Arena

OpenAI's Brad Lightcap exits after eight years to start something new

OpenAI's longest-serving business executive is out the door, and the shakeup at the world's most valuable AI lab just got its biggest name yet. Brad Lightcap, who spent eight years at OpenAI — most recently leading its special projects division after years as chief operating officer — announced Tuesday he is leaving the company "to start something new." "Team, it is bittersweet to share that I'll be moving on from OpenAI to start something new," Lightcap wrote on X, without naming his next…

Mistral rallies ASML and partners behind 1GW European AI compute

The Arena

Mistral rallies ASML and partners behind 1GW European AI compute

Europe's sovereign-AI push got concrete today. Mistral turned regional inference, third-party open models, and a coalition of industrial giants into a single infrastructure play — and a coalition of more than 40 digital-asset organizations pressed AI labs to open frontier models to defenders. Mistral moved its sovereign-AI pitch from manifesto to product line, announcing generally available regional inference endpoints, an SLA-backed priority tier, and a coalition of European industrial giants…

Ant Group leads strategic round in robot-touch startup Daimon

The Arena

Ant Group leads strategic round in robot-touch startup Daimon

China's embodied-AI money is moving from robot bodies to robot senses. Ant Group led a strategic round in tactile-sensing startup Daimon Robotics, which also unveiled what it calls the first "physical interaction brain"; meanwhile Westlake Robotics banked its fourth round in six months, and researchers showed an AI agent can crack a critical Zoom bug in a day. Daimon Robotics, the Shenzhen startup building tactile sensing for robots, has closed a strategic round of several hundred million yuan…

Deep Dive — Cracking the encrypted chain-of-thought in frontier LLM APIs

The Guardrails

Deep Dive — Cracking the encrypted chain-of-thought in frontier LLM APIs

Anthropic, OpenAI, and Google hide their models' step-by-step reasoning from users — but a new preprint argues the "encryption" they wrap it in was never the wall it looked like. A team spanning MATS Research, ELLIS Tübingen, the Max Planck Institute for Intelligent Systems, and Snyk says it decoded hidden reasoning traces from Claude, GPT, and Gemini models using little more than a replay attack and a weaker sibling model — and that the same blocks are leaking real credentials and personal…

Trajectory raises $40M for AI that learns without forgetting

The Frontier

Trajectory raises $40M for AI that learns without forgetting

The morning's biggest bets are on the long game: Sequoia is funding a team trying to make models keep learning after deployment, Beijing's order to unwind Meta's Manus deal is nearly done, and agent observability keeps pulling in money. Trajectory, a startup founded by former DeepMind, Apple, OpenAI, and Meta staffers, has raised $40 million led by Sequoia at a $300 million valuation to build continual learning models, according to The Information.

Research Gold's '100% human-written' research is entirely AI

The Everyday

Research Gold's '100% human-written' research is entirely AI

The "never AI" label is becoming a marketing claim you can't trust: an investigation found a medical research service advertising "100% human-written" work is run entirely by AI — including the PhDs on its team page — while IBM's researchers showed agents can match a leading memory approach at a fraction of the tokens. A medical research service selling "100% human-written, never AI" systematic reviews is entirely AI-run — including the PhD methodologists it lists on its team page, several of…

Wix launches Symphony, a multi-agent platform for small businesses

The Arena

Wix launches Symphony, a multi-agent platform for small businesses

Agents spent today moving from demos into the operational layer of business: Wix gave small companies a coordinated team of AI workers, Amazon quietly sealed off its purchase data from rival shopping agents, and Blumira planted an AI command center on top of the security stack. Wix today launched Symphony, a standalone multi-agent platform that learns how a small business operates and runs its workflows, with a central orchestrator — named Maestro — dispatching specialized agents across…

Nvidia ships Nemotron 3.5 Lightning and an open model router

The Frontier

Nvidia ships Nemotron 3.5 Lightning and an open model router

The enterprise AI story today is about choice: Nvidia shipped a fast, easily customized open model plus a router that picks between models, IBM bet $240 million on open-model inference, and Spotify decided AI-generated artist identities shouldn't get recommendations. Nvidia released Nemotron 3.5 Lightning, a 30-billion-parameter mixture-of-experts model aimed at the high-volume, always-on workloads that power AI agents, alongside NeMo Switchyard, an open-source library that routes each step of…