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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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GPT-4 (Mar 2023) vs Llama 3.1-405B

Verdict

Llama 3.1-405B leads 3–2 across 5 shared benchmarks.

GPT-4 (Mar 2023) 2 · Llama 3.1-405B 3 · higher isn't always better — see caveats.

Per-benchmark head-to-head

GPT-4 (Mar 2023)Llama 3.1-405B
  • 14.31
    GPQA diamond
    34.55
  • 93.73
    HellaSwag
    85.6
  • 81.87
    MMLU
    79.33
  • 0.46
    OTIS Mock AIME 2024-2025
    9.63
  • 75
    Winogrande
    78.4
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

  • GPT-4 (Mar 2023)93.73
  • Llama 3.1-405B93.73

Llama 3.1-405B vs …

  • vs PowerMoE-3b
  • vs Claude Fable 5
  • vs GPT-5.5
  • vs Gemini 3.1 Pro
  • vs phi-3-small 7.4B