Frontier Log

Anthropic

Claude 3.5 Sonnet (upgraded)

Announced on anthropic.com

Benchmark results

BenchmarkScoreSource check
SWE-bench Verified49.0%
CorroboratedThe same number is printed in 3 other lab documents: 1 2 3
GPQA Diamond0-shot chain of thought65.0%
CorroboratedThe same number is printed in 2 other lab documents: 1 2
AIME 2024No tools · 0-shot chain of thought16.0%
CorroboratedThe same number is printed in 2 other lab documents: 1 2
majority vote over 64 samples; 0-shot chain of thought · parallel test-time compute · in Model Card Addendum: Claude 3.5 Haiku and Upgraded Claude 3.5 Sonnet27.6%
CheckedA person checked this number against its source on 26 Oct 2026. This confirms the number matches what the lab published, not that the score was reproduced.
MMLU-Pro0-shot chain of thought78.0%
CorroboratedThe same number is printed in 1 other lab document: 1
Sources

Reported by Anthropic

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