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Public letters about Open Weights and American AI Leadership were signed by almost every big name in AI, with one notable exception.
Nearly every prominent figure in AI signed letters on open weights and American AI leadership, with one notable person declining to sign. ✦ AI generated
Simon Willison · Simon Willison's Weblog · 2026-07-31 · original ↗
public letters about Open Weights and American AI Leadership signed by almost every big name in AI (with one notable exception)
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Banning or heavily restricting open-weight models in the U.S. would create a dangerous asymmetry, where American closed models carry cybersecurity guardrails but global adversaries still have unrestricted access to capable Chinese open-weight models to probe U.S. defenses.Nathan Lambert · Interconnects · conf 70%Kimi K3 shows open weight models can stand toe-to-toe with proprietary frontier ones.Simon Willison · Simon Willison's Weblog · conf 60%