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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-5.4 Pro vs Muse Spark

Verdict

GPT-5.4 Pro leads 3–1 across 4 shared benchmarks.

GPT-5.4 Pro 3 · Muse Spark 1 · higher isn't always better — see caveats.

Per-benchmark head-to-head

GPT-5.4 ProMuse Spark
  • 30
    CritPt
    11.33
  • 92.8
    GPQA diamond
    86.4
  • 41.51
    HLE
    37.56
  • 47.8
    SimpleQA Verified
    66.3
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-5.4 Pro94.5
  • Muse Spark88.89