Verdict
o3-pro leads 5–3 across 8 shared benchmarks.
o3 3 · o3-pro 5 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
o3-pro leads 5–3 across 8 shared benchmarks. o3 leads 3 benchmarks and o3-pro leads 5. Higher isn't always better — see the integrity caveats on each benchmark.
o3 and o3-pro have 8 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.