Kimi K3 Matches Opus 4.8 in Coding, Tops Open-Weight Models
sergeykarayev · x · 2026-08-01
On a custom SWE-bench, Kimi K3 delivers quality on par with Opus 4.8 on a Rails codebase for a fraction of the cost.
It outperforms the next best open-weight model, GLM 5.2, by about 8 points, making it the leading open-weight model currently available.
Related event: Kimi K3 Matches Opus in Coding, Tops Open-Source(2 posts)→
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