MMLU-ProHealthy 1.0 · University of Waterloo · general Massive multitask language understanding with harder, reasoning-focused questions. Reproducibilityreproducible Contamination concernmedium SaturationNot assessed Last reviewed2026-07-20 Reviewed results ModelScoreDateProvenanceSource Llama 484.0%2026-07-01Vendor-runEvidenceClaude Mythos 587.0%2026-07-01Vendor-runEvidenceGPT-5.6 Sol88.0%2026-07-01Vendor-runEvidence