Verdict
Kimi K3 leads 15–0 across 15 shared benchmarks.
GPT-5 0 · Kimi K3 15 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Reasoning: Kimi K3 leads 4–0 across 4 shared reasoning benchmarks (largest gap: ARC-AGI, 94.5 vs 65.67 — single evaluator).
Unknown: Kimi K3 leads 4–0 across 4 shared unknown benchmarks (largest gap: ProofBench, 87 vs 18 — single evaluator).
Math: Kimi K3 leads 2–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 39.02 vs 21.95 — single evaluator).
Kimi K3 leads 15–0 across 15 shared benchmarks. GPT-5 leads 0 benchmarks and Kimi K3 leads 15. Higher isn't always better — see the integrity caveats on each benchmark.
GPT-5 and Kimi K3 have 15 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
Kimi K3 leads reasoning 4–0. Kimi K3 leads unknown 4–0.