Welcome to the DailyAI Briefing, the day’s five biggest AI stories. Jensen Huang has resigned as chief executive of Nvidia, and its shares ended the day far above their early low. Google made its new Gemini 4 Hydrogen model the default for AI answers in Search, OpenAI launched ChatGPT Wallet so that its AI agents can pay for shopping, experts advising the French president called for safety tests before chatbots launch, and a new survey found that teens in richer families now use AI for homework more than teens in poorer ones.
Let’s dig in.
Jensen Huang resigns as head of Nvidia
4.3%. That is how much Nvidia shares fell on Thursday, the day the company said Jensen Huang had resigned as chief executive. Early in the session the drop was about 14%. Those figures were reported by a news agency.
Huang co-founded the company and ran it for 33 years. A filing with the market regulator shows that the board accepted his resignation on Wednesday. Colette Kress, the chief financial officer since 2013, is now interim chief executive and keeps her finance job. Harvey Jones, a board member since 1993, becomes the first chair of the board.
NVIDIA announces CEO transition. Read the release: https://t.co/MTTUvFHCJA
— NVIDIA Newsroom November 12, 2026
The company gave no reason. The resignation came after a week of reports about his private life. Our report explains who runs the company now. The real test comes on Tuesday 17 November, when the chipmaker publishes its third-quarter results with Kress in charge. So many AI models are trained on its chips that those numbers will say more about AI spending than any change at the top.
Google puts Gemini 4 Hydrogen behind its AI search answers
2.5 times faster. That is Google’s own figure for how quickly Gemini 4 Hydrogen finishes tasks compared with Gemini 3.8 Flash, the model it replaces. The new model was announced in a company blog post on 12 November. It is now the default model in AI Mode and handles the hardest questions in AI Overviews, the summaries at the top of search results.
(1/6) The biggest model upgrade to Search yet has landed. Gemini 4 Hydrogen is here, and brings cutting-edge intelligence to all Search users. It’s now the new default model in AI Mode & being used for your hardest questions in AI Overviews.
— Robby Stein (@rmstein) November 12, 2026
Google says the model scores 57% on Terminal-Bench 4.1, a test of coding tasks done in a computer terminal, against 18.2% for the older model. Nobody outside Google has checked these figures yet. Our article explains what changes for people who search. Most people will meet this model without ever choosing it, so independent tests of its answers matter more than the speed claim.
ChatGPT Wallet lets AI agents pay for shopping
1.2 billion. That is how many people OpenAI says use ChatGPT each week, but only a small group of them can try ChatGPT Wallet. It went live on Friday for paying Pro users in the United States who are 18 or older. The new payment feature was announced in a company blog post on 13 November.
OpenAI built it with American Express, Mastercard and Visa. When the AI agent is ready to buy something, the user sees the items, the total and the card, then approves the purchase with Face ID or a fingerprint scan. A stand-in card number is used in place of the real one, so OpenAI says neither the shop nor the AI agent sees the real card details.
A safe payment is not the same as a safe shop, though. In September, a firm that sells brand protection ran its own tests and found that ChatGPT pointed to a risky website, such as a fake shop, in 8% of its shopping answers. Our report looks at what the new feature does and does not protect. For now, the best safeguard is still a person who reads each purchase before approving it.
French experts want chatbots tested before launch
18 recommendations. That is what a panel of nine experts set up by the French presidency handed to Emmanuel Macron on 10 November. The presidency has published a summary of the report on its website. Chatbots for the general public, including those built into social networks, would have to show that they do not exploit or worsen the weaknesses of the people who use them, with a second check after every major change to the model.
The panel also wants limits on chatbots that act too much like a human or flatter their users, a ban on hidden advertising in chatbot answers, and approval and age limits for toys with a chatbot inside.
None of this is law yet, and France cannot bring in such checks on its own. Our article sets out the main recommendations. A test before launch would reverse the usual order, in which rules for AI arrive only after the harm.
Teens in richer families use AI for homework more
57% against 43%. Those are the shares of teens in the United States who use AI for homework in families earning $150,000 or more a year and in families earning less than $50,000. A year earlier, both groups were level at 39%. Those numbers come from a new report published on Thursday.
RAND surveyed about 1,000 parents and 1,800 teens aged 12 to 18. Teens tend to copy what their parents do, and 67% of parents in the highest-income group encourage their teen to use AI for school, against 45% of the lowest-income parents.
RAND does not say whether the new difference helps or hurts richer teens. Research cited in the report finds that learning suffers when AI replaces a student’s own first try at a task, but not when AI is used to improve work the student has already done. Our article covers the full survey and its advice for parents. How teens use AI at home may matter as much as any school rule.
Friday’s common thread
A chief executive stepped down, a search engine changed its default model and a chatbot started paying for shopping. The other two stories were about who sets the rules for AI, whether that is a panel of experts in Paris or a parent at the kitchen table.
See you tomorrow.
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