Financial Times · AI covers the core facts. Nvidia announced on 12 November that Huang had left as president, CEO and director after 33 years. His departure followed reports of an affair with Alice Huang, a former Megaspeed executive. CFO Colette Kress is interim CEO, and Harvey C. Jones becomes Nvidia's first board chair. One account dates the resignation to 11 November, a day before the announcement (CNBC · Technology). Huang had roughly 60 direct reports, no COO and no succession plan. Reported market-value losses range from about $490 billion to over $855 billion, depending on the time window used. The next signals are the 17 November earnings call and GTC DC on 1–3 December.
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For open models, about $19 billion in deals are pending. They include the $12.93 billion Hugging Face acquisition, which the Justice Department is reportedly examining (TechCrunch AI). No terms have changed. However, Huang personally led Nvidia's open-weights push, and the transition announcement says nothing about open source.
Megaspeed and export controls
Commerce Secretary Howard Lutnick faces reported White House discussion of his dismissal. Reports say his department delayed blacklisting Megaspeed, a Singapore buyer of more than $4 billion in Nvidia chips, despite a classified warning. Commerce disputes this account (Guardian · AI). Whether Alice Huang spied for China is contested, and China denies it. Singapore found insufficient evidence of export crimes, and no charges appear in the reporting. Huang has agreed to testify to Congress. Southeast Asian GPU buyers should expect stricter end-use checks.
Gemini 4 Hydrogen becomes the default
Simon Willison describes a model that replaces the Flash tier. Hydrogen is now the default for free Gemini app users and powers Search worldwide (Google AI). Artificial Analysis scores it 54 at its xhigh reasoning level, close to Claude Sonnet 5.5 and GPT-6.1 Sol at 55. Per-task cost runs from about $0.29 to $3.16, depending on the thinking level. Google's Terminal-Bench jump, from 18.2% to 57%, is the company's own figure; Artificial Analysis had Hydrogen trailing rivals on an earlier Terminal-Bench version. Moving off 3.8 Flash requires code changes, and llm-gemini 0.37 already supports the new model.
More model launches
DeepL introduced a voice translation model (last30days ·). last30days ·, but no benchmarks or hardware requirements are public yet. Separately, an essay predicts that model weights will move peer-to-peer (last30days ·).
Agents doing research
In Two Minute Papers, five people working with agent teams wrote about 6.5 million lines of Lean proof in four weeks. The proofs assume idealized cryptography and exclude group chats and the wider app. A gatekeeper now stops agents from quietly weakening theorems. Microsoft Research describes human-directed agent search on a geometry problem. The same issue covers research on context compaction for coding agents. The Maya case offers a counterpoint (Verge · AI): the agents spotted real features but missed the published literature.
Agents, payments and search
Jamie Dimon is keeping outside agents out of Chase accounts, while Stripe, Mastercard and Visa build credentials designed for agents. Liability for agent errors is still unresolved (WSJ · Technology). A Reddit post claims a 577% traffic gain from an Obsidian and Claude Code workflow but shows no baseline. Google's spam rules now also cover AI Overviews and AI Mode (r/AISEOInsider).
Children's AI safety
OpenAI says it will give $2 million to a coalition research network, as part of a roughly €8 million industry pool (OpenAI News). No child-specific benchmark or enforcer exists yet.
