Verdict
Claude Opus 5 leads 11–3 across 14 shared benchmarks.
Claude Opus 5 11 · Gemini 3.7 Flash 3 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Unknown: Claude Opus 5 leads 4–0 across 4 shared unknown benchmarks (largest gap: ProofBench, 99 vs 58 — single evaluator).
Reasoning: Gemini 3.7 Flash leads 2–1 across 3 shared reasoning benchmarks (largest gap: SimpleQA Verified, 69.2 vs 59.9 — protocols undisclosed).
Coding: Claude Opus 5 leads 2–0 across 2 shared coding benchmarks (largest gap: FrontierCode, 53.38 vs 43.59 — single evaluator).
Math: Claude Opus 5 leads 2–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 73.17 vs 36.59 — single evaluator).
Claude Opus 5 leads 11–3 across 14 shared benchmarks. Claude Opus 5 leads 11 benchmarks and Gemini 3.7 Flash leads 3. Higher isn't always better — see the integrity caveats on each benchmark.
Claude Opus 5 and Gemini 3.7 Flash have 14 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
Claude Opus 5 leads unknown 4–0. Claude Opus 5 leads coding 2–0.