Kimi K3 Tops Open-Weight Models on ARC-AGI, Rivaling Frontier Models
mhmazur · x · 2026-08-01
Moonshot's open-weight model Kimi K3 demonstrates exceptional performance relative to cost on the ARC-AGI benchmarks. Verified by ARC Prize, K3 scored 60.4% on ARC-AGI-2 ($1.59/task) and 94.5% on ARC-AGI-1 ($0.77/task).
This makes K3 the highest-scoring open-weight model evaluated on both benchmarks, with performance comparable to closed-weight frontier models released just 2-3 months ago, such as Opus 4.8 (low).
Related event: Kimi K3 Tops Open-Source ARC-AGI Leaderboard(4 posts)→
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