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# China's AI Catch-Up Ends the Silicon Valley Moat
- URL: https://adjacent.media/signals/chinas-ai-catch-up-ends-the-silicon-valley-moat/
- Published: 2026-07-20T23:05:49.000Z
- Updated: 2026-07-20T23:05:49.000Z
- Description: The erosion of proprietary advantages in foundation models—driven by open-source alternatives, commoditized compute, and China’s rapid advancement—has demolished the assumption that the U.S. maintains structural dominance in AI development.
- Author: Jonathan Greene
- Tags: #signal, theme-ai, ai competition, geopolitical strategy, ai commoditization

Source: [Marcus on AI](https://open.substack.com/pub/garymarcus/p/china-has-all-but-caught-up-the-us)

The erosion of proprietary advantages in foundation models—driven by open-source alternatives, commoditized compute, and China's rapid advancement—has demolished the assumption that the U.S. maintains structural dominance in AI development. Marcus argues the framing of AI as a geopolitical "war" misses the actual problem: a fragmented market with thin margins and no clear winner. The strategic question shifts from "how do we beat them" to "what do we actually build that matters." This reorients policy conversations away from export controls and capability races toward labor, infrastructure, and alignment—problems that speed to market doesn't solve.