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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.

← Models

Claude Opus 4

Anthropic·released 2025-05-22

independently reproduced

Scored on 19 benchmarks. 32% of its scores are independently reproduced — the rest are self-reported or unverified.

19
Benchmarks scored
0
SOTA leads
85.05
Best score
32%
Reproduced
6 of 19

Benchmark fingerprint

Every score, ranked, colored by evidence status.

  • MATH level 5
    85.05
  • Aider polyglot
    72
  • SWE-Bench verified
    70.66
  • GPQA diamond
    68.35
  • OTIS Mock AIME 2024-2025
    64.41
  • Fiction.LiveBench
    61.1
  • SimpleBench
    50.56
  • GeoBench
    49
  • DeepResearch Bench
    49
  • WeirdML
    43.4
  • Cybench
    38
  • ARC-AGI
    35.7
  • ARC-AGI-2
    8.61
  • FrontierMath-2025-02-28-Private
    7.86
  • VPCT
    7
  • FrontierMath-Tier-4-2025-07-01-Private
    6.94
  • GSO-Bench
    6.9
  • HLE
    6.22
  • CritPt
    0.3

All benchmark scores

BenchmarkScoreEvidence statusMeasured
MATH level 585.05accuracy (%)reproduced· optimized2025-05-22
Aider polyglot72accuracy (%)unverified· optimized2025-05-22
SWE-Bench verified70.66accuracy (%)reproduced· optimized2025-05-22
GPQA diamond68.35accuracy (%)reproduced· optimized2025-05-22
OTIS Mock AIME 2024-202564.41accuracy (%)reproduced· optimized2025-05-22
Fiction.LiveBench61.1accuracy (%)unverified2025-05-22
SimpleBench50.56accuracy (%)unverified2025-05-22
GeoBench49accuracy (%)unverified2025-05-22
DeepResearch Bench49accuracy (%)unverified2025-05-22
WeirdML43.4accuracy (%)unverified2025-05-22
Cybench38accuracy (%)unverified· optimized2025-05-22
ARC-AGI35.7accuracy (%)unverified· optimized2025-05-22
ARC-AGI-28.61accuracy (%)unverified2025-05-22
FrontierMath-2025-02-28-Private7.86accuracy (%)reproduced· optimized2025-05-22
VPCT7accuracy (%)unverified2025-05-22
FrontierMath-Tier-4-2025-07-01-Private6.94accuracy (%)reproduced2025-05-22
GSO-Bench6.9accuracy (%)unverified2025-05-22
HLE6.22accuracy (%)unverified2025-05-22
CritPt0.3accuracy (%)unverified2025-05-22
19 source records · epoch_benchmarks. Every score is evidence-linked.

Follow the record

More from Anthropic

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