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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 Sonnet 4.6

Anthropic·released 2026-02-17

independently reproduced

Scored on 20 benchmarks, leading 1. 35% of its scores are independently reproduced — the rest are self-reported or unverified.

20
Benchmarks scored
1
SOTA leads
86.5
Best score
35%
Reproduced
7 of 20

Leads on: OSWorld

Benchmark fingerprint

Every score, ranked, colored by evidence status.

  • ARC-AGI
    86.5
  • OTIS Mock AIME 2024-2025
    85.78
  • GPQA diamond
    83.16
  • SWE-Bench verified
    75.21
  • OSWorld
    72.1
  • WeirdML
    66.07
  • ARC-AGI-2
    60.42
  • FrontierMath-2025-02-28-Private
    56.84
  • DeepResearch Bench
    54.87
  • Terminal Bench
    53.4
  • CursorBench
    49
  • GBAEval
    48.76
  • SimpleQA Verified
    29
  • ExploitBench
    24
  • APEX-Agents
    23.7
  • PostTrainBench
    16.42
  • FrontierMath-Tier-4-2025-07-01-Private
    13.83
  • Chess Puzzles
    13
  • OSWorld 2.0
    9.3
  • CritPt
    3.14

All benchmark scores

BenchmarkScoreEvidence statusMeasured
ARC-AGI86.5accuracy (%)unverified· optimized2026-02-17
OTIS Mock AIME 2024-202585.78accuracy (%)reproduced· optimized2026-02-17
GPQA diamond83.16accuracy (%)reproduced· optimized2026-02-17
SWE-Bench verified75.21accuracy (%)reproduced· optimized2026-02-17
OSWorld72.1accuracy (%)unverified· optimized2026-02-17
WeirdML66.07accuracy (%)unverified2026-02-17
ARC-AGI-260.42accuracy (%)unverified2026-02-17
FrontierMath-2025-02-28-Private56.84accuracy (%)reproduced· optimized2026-02-17
DeepResearch Bench54.87accuracy (%)unverified2026-02-17
Terminal Bench53.4accuracy (%)unverified· optimized2026-02-17
CursorBench49accuracy (%)unverified2026-02-17
GBAEval48.76accuracy (%)unverified2026-02-17
SimpleQA Verified29accuracy (%)reproduced2026-02-17
ExploitBench24accuracy (%)unverified2026-02-17
APEX-Agents23.7accuracy (%)unverified2026-02-17
PostTrainBench16.42accuracy (%)unverified2026-02-17
FrontierMath-Tier-4-2025-07-01-Private13.83accuracy (%)reproduced2026-02-17
Chess Puzzles13accuracy (%)reproduced2026-02-17
OSWorld 2.09.3accuracy (%)unverified2026-02-17
CritPt3.14accuracy (%)unverified2026-02-17
20 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

Benchmarks it leads

  • OSWorld