Today’s brief tracks the money quietly reshaping AI infrastructure, from a chipmaker investing in its own biggest customer to Washington’s sanctions threat against a Chinese lab, plus a full roundup of new agent tools and industry rumors.

The Circular Money Behind AI Compute: Chipmakers Bet Billions on Their Own Customers

AMD, OpenAI, and TSMC are all pouring money into the same GPU buildout, and a sharp new analysis argues nobody has actually priced the collateral underneath it.

Washington Turns Up the Pressure on Chinese AI: A Sanctions Threat Meets a Government-Built Model

Treasury is threatening sanctions over an alleged case of model theft even as the Department of Energy backs an open government model built the opposite way.

The New Layer Above the Models: Routing, Permissions, and Evals for AI Agents

OpenAI, Cursor, LangChain, and Anthropic all shipped new plumbing this week for controlling, routing, and evaluating AI agents rather than just building bigger models.

Today’s Quick Hits