Verdict
Kimi K3 leads 10–9 across 19 shared benchmarks.
Grok 4.6 9 · Kimi K3 10 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Unknown: Grok 4.6 leads 3–2 across 5 shared unknown benchmarks (largest gap: ProofBench, 87 vs 51 — single evaluator).
Reasoning: Evenly split 2–2 across 4 shared reasoning benchmarks (largest gap: SimpleBench, 71.08 vs 52.84 — single evaluator).
Coding: Kimi K3 leads 2–1 across 3 shared coding benchmarks (largest gap: FrontierCode, 48.01 vs 44.17 — single evaluator).
Math: Evenly split 1–1 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 39.02 vs 31.71 — single evaluator).
Kimi K3 leads 10–9 across 19 shared benchmarks. Grok 4.6 leads 9 benchmarks and Kimi K3 leads 10. Higher isn't always better — see the integrity caveats on each benchmark.
Grok 4.6 and Kimi K3 have 19 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
Grok 4.6 leads unknown 3–2. Kimi K3 leads coding 2–1.