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tensor.news grades benchmarks and tags model claims by evidence status. Every fact carries a source record and provenance. Scores are framed as task performance under a disclosed harness, never as deployed capability.

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Gemini 2.5 Pro (Jun 2025) vs o3-pro

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 — see caveats.

Per-benchmark head-to-head

Gemini 2.5 Pro (Jun 2025)o3-pro
  • 83.1
    Aider polyglot
    84.9
  • 41
    ARC-AGI
    59.3
  • 4.86
    ARC-AGI-2
    4.86
  • 91.7
    Fiction.LiveBench
    97.2
  • 86.02
    Lech Mazur Writing
    86.28
  • 54.03
    WeirdML
    58.21
A higher number is not always a better model. Each score is task performance under a disclosed harness, and some of these benchmarks are saturated or scored under mixed harnesses. Follow any benchmark to its integrity grade before reading a win as decisive.

Follow the record

These models

  • Gemini 2.5 Pro (Jun 2025)91.7
  • o3-pro97.2