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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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Claude 3 Opus vs GPT-4 (Mar 2023)

Verdict

Claude 3 Opus leads 3–1 across 4 shared benchmarks.

Claude 3 Opus 3 · GPT-4 (Mar 2023) 1 · higher isn't always better — see caveats.

Per-benchmark head-to-head

Claude 3 OpusGPT-4 (Mar 2023)
  • 29.55
    GPQA diamond
    14.31
  • 79.47
    MMLU
    81.87
  • 4.63
    OTIS Mock AIME 2024-2025
    0.46
  • 77
    Winogrande
    75
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

  • Claude 3 Opus79.47
  • GPT-4 (Mar 2023)93.73