Verdict
GPT-6.1 Sol leads 6–3 across 11 shared benchmarks.
Gemini 4 Argon 3 · GPT-6.1 Sol 6 · 2 tied · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Unknown: GPT-6.1 Sol leads 2–0 across 3 shared unknown benchmarks (largest gap: Mystery Game Puzzles, 77.97 vs 60.34 — protocols undisclosed).
Math: GPT-6.1 Sol leads 1–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 100 vs 78.05 — protocols undisclosed).
Reasoning: Gemini 4 Argon leads 2–0 across 2 shared reasoning benchmarks (largest gap: SimpleQA Verified, 76 vs 73.9 — protocols undisclosed).
GPT-6.1 Sol leads 6–3 across 11 shared benchmarks. Gemini 4 Argon leads 3 benchmarks and GPT-6.1 Sol leads 6, with 2 tied. Higher isn't always better — see the integrity caveats on each benchmark.
Gemini 4 Argon and GPT-6.1 Sol have 11 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
GPT-6.1 Sol leads unknown 2–0. Gemini 4 Argon leads reasoning 2–0.