Verdict
o3-pro leads 5–0 across 6 shared benchmarks.
Gemini 2.5 Pro (Jun 2025) 0 · o3-pro 5 · 1 tied · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
o3-pro leads 5–0 across 6 shared benchmarks. Gemini 2.5 Pro (Jun 2025) leads 0 benchmarks and o3-pro leads 5, with 1 tied. Higher isn't always better — see the integrity caveats on each benchmark.
Gemini 2.5 Pro (Jun 2025) and o3-pro have 6 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.