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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 3.5 Sonnet (October 2024)

Anthropic·released 2024-10-22

independently reproduced

Scored on 17 benchmarks. 29% of its scores are independently reproduced — the rest are self-reported or unverified.

17
Benchmarks scored
0
SOTA leads
83.07
Best score
29%
Reproduced
5 of 17

Benchmark fingerprint

Every score, ranked, colored by evidence status.

  • MMLU
    83.07
  • Lech Mazur Writing
    80.3
  • GeoBench
    62
  • MATH level 5
    56.95
  • Aider polyglot
    51.6
  • CadEval
    48
  • GPQA diamond
    40.4
  • WeirdML
    39.97
  • Balrog
    32.6
  • SimpleBench
    29.68
  • The Agent Company
    24
  • OTIS Mock AIME 2024-2025
    8.38
  • GSO-Bench
    4.6
  • FrontierMath-2025-02-28-Private
    3.63
  • FrontierMath-Tier-4-2025-07-01-Private
    0
  • VPCT
    0
  • HLE
    0

All benchmark scores

BenchmarkScoreEvidence statusMeasured
MMLU83.07accuracy (%)unverified· optimized2024-10-22
Lech Mazur Writing80.3accuracy (%)unverified2024-10-22
GeoBench62accuracy (%)unverified2024-10-22
MATH level 556.95accuracy (%)reproduced· optimized2024-10-22
Aider polyglot51.6accuracy (%)unverified· optimized2024-10-22
CadEval48accuracy (%)unverified2024-10-22
GPQA diamond40.4accuracy (%)reproduced· optimized2024-10-22
WeirdML39.97accuracy (%)unverified2024-10-22
Balrog32.6accuracy (%)unverified2024-10-22
SimpleBench29.68accuracy (%)unverified2024-10-22
The Agent Company24accuracy (%)unverified2024-10-22
OTIS Mock AIME 2024-20258.38accuracy (%)reproduced· optimized2024-10-22
GSO-Bench4.6accuracy (%)unverified2024-10-22
FrontierMath-2025-02-28-Private3.63accuracy (%)reproduced· optimized2024-10-22
FrontierMath-Tier-4-2025-07-01-Private0accuracy (%)reproduced2024-10-22
VPCT0accuracy (%)unverified2024-10-22
HLE0accuracy (%)unverified2024-10-22
17 source records · epoch_benchmarks. Every score is evidence-linked.

Follow the record

More from Anthropic

  • Claude Fable 599.72
  • Claude Opus 4.898.33
  • Claude Opus 4.797.8
  • Claude Sonnet 4.597.73
  • Claude Haiku 4.596.36
  • Claude Opus 4.694.44