Open-weight models may take the largest share of global AI usage
joshua_saxe · x · 2026-07-24
The author argues that US policymakers should worry less about blocking Chinese training on US model outputs and more about the broader shift toward open-weight models.
Key claims:
- Countries pursuing sovereign AI will prefer customizable local models, and many of those open-weight options are coming from China.
- Open-weight usage appears to be on a strong growth curve, with OpenRouter traffic showing open models overtaking closed ones.
- Inference providers focused on open weights will keep pushing costs down aggressively, which could matter as tokens become commoditized.
- A horizontally decoupled ecosystem — training, inference, harnesses, and apps split apart — may outcompete vertically integrated stacks.
The attached chart claims open weights moved from 19% to 60% of OpenRouter traffic in under seven months.
Related event: Open-Weight Models Set to Dominate Global AI Usage(4 posts)→
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