Andrew Chen: US devs shipping open-weight JEV alternatives within days, reversing the usual pattern

andrewchen · x · 2026-09-21

a16z's Andrew Chen notes a reversal: instead of Chinese open-weight models closing the gap 6-12 months after frontier launches, US developers are shipping their own open-weight JEV alternatives within days — he's tracking 2-3 early ones, with Chinese versions expected soon.

Related event: Open-source replicas of JEV emerge within days(2 posts)→

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