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anthropic logoAnthropic: Claude Sonnet 5

anthropic/claude-sonnet-5 · anthropic · context 1 000 000 · in $2.00/1M · out $10.00/1M

Global Index

690

95% CI [631748] · index v0.1.0

Per-domain scores

DomainScore (95% CI)Accuracy (IRT)ConsistencyCalibrationContam. Δp50$/1k
code738 [584892]
0.5271.000.990.0002.7s$3.13
instruction following687 [541833]
0.4950.980.970.0382.6s$1.05
knowledge725 [571878]
0.5001.001.000.0002.4s$0.480
math619 [515722]
0.3810.950.780.0003.0s$0.912
multilingual684 [539830]
0.4841.000.980.0382.0s$0.608
reasoning684 [538830]
0.4950.980.960.0382.1s$1.44

Run history

  • 2026-08-05v0.1.0index_fit690
  • 2026-08-05v0.1.0index_fit691
  • 2026-08-05v0.1.0index_fit703
  • 2026-08-05v0.1.0demo_seed590