Scrutica
One screen, plain English: how many chokepoints can each halt the next frontier run, which of them answers to no one, and which stay locked past five years — the finding without the axis machinery.
Training a frontier model runs through a long supply chain: the chips, the handful of machines that can make them, the packaging that fuses them, and the power to run it all. At eight points along that chain, a single player can stall the work for a year or more. Seven of the eight sit under some check, whether an export-control rule or a public body. The last answers to no one.
That one is advanced packaging: the step that fuses bare silicon into a working accelerator, controlled by TSMC. No export rule reaches it and no antitrust case touches it; it answers only to the customers in its queue.
Most of these loosen within five years as rivals qualify. Two do not: chip lithography and chip-design software, where no second supplier is in sight.
This is the brief. Open the Leverage view for the full instrument: every holder, the leverage behind each verdict, the sources, and the methodology.