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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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Grok 4 vs o3-pro

Verdict

o3-pro leads 4–2 across 6 shared benchmarks.

Grok 4 2 · o3-pro 4 · higher isn't always better — see caveats.

Per-benchmark head-to-head

Grok 4o3-pro
  • 79.6
    Aider polyglot
    84.9
  • 66.67
    ARC-AGI
    59.3
  • 15.97
    ARC-AGI-2
    4.86
  • 94.4
    Fiction.LiveBench
    97.2
  • 80.68
    Lech Mazur Writing
    86.28
  • 45.73
    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

  • Grok 494.4
  • o3-pro97.2