Anthropic / MODEL EVIDENCE

Claude Sonnet 4-20250514

4 benchmarks · 6 observations · 4 sources

Scores at a glance

4 benchmarks · large dot: Claude Sonnet 4-20250514; small dots: closest models where reported

10751075

claude-sonnet-4-20250514 · SEAL Showdown · style-controlled Elo · 2025-09-20 · September 20, 2025 snapshot ↗

1 more reported result

1032.9 Elo · claude-sonnet-4-20250514 (Thinking) · SEAL Showdown · style-controlled Elo · 2025-09-20 · September 20, 2025 snapshot · SEAL Showdown Technical Report ↗

070

claude-sonnet-4-20250514 · FrontierMath-2025-02-28-Public · FrontierMath public · 10 questions · source run score · Epoch AI · public February 2025 sample · historical release ↗

ForecastBench ↗64.2 Brier index
46.467

claude-sonnet-4-20250514† · Overall difficulty-adjusted Brier index ↗

Closest models by score

Similar positions on shared benchmark leaderboards. Smaller gaps are closer.

There are not enough shared scored settings to identify close comparisons reliably.

Sources

Every plotted observation links to its evaluation. Reported configurations, benchmark versions and task subsets can differ; similarity describes shared scores, not training lift.

  1. Aider code editing benchmark ↗

    Paul Gauthier, Aider contributors

  2. Forecastbench — methodology and published results ↗

    Epoch AI · 2026

  3. A Rosetta Stone for AI Benchmarks — released Epoch evaluation runs ↗

    Epoch AI · 2025

  4. SEAL Showdown Technical Report ↗

    Scale AI · 2025

Names used in source tables

claude-sonnet-4-20250514 · claude-sonnet-4-20250514 (32k thinking) · claude-sonnet-4-20250514 (Thinking) · claude-sonnet-4-20250514 (no thinking) · claude-sonnet-4-20250514†