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Kimi K3 Just Broke The Economics Of AI

Two Minute Papers · Jul 29, 2026 · Product Launches

Kimi K3's open-weights 2.8T parameter model matches frontier quality at significantly lower API cost

“even if you don't ever use it, it will be pushing token prices down”

Moonshot AI released Kimi K3, a 2.8 trillion parameter open-weights model that approaches frontier performance while offering dramatically cheaper API pricing than competitors. The model introduces two architectural innovations—Kimi Delta Attention (KDA) and Attention Residuals—that together yield a 2.5x improvement in scaling efficiency over its predecessor K2. As an open-weights release, it cannot be restricted or revoked, and its pricing pressure stands to lower token costs industry-wide regardless of direct adoption.

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