benchlm.ai

Claude 3.5 Sonnet vs Claude Opus 4.6

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

Claude Opus 4.6 wins overall with a score of 86 vs 55 (31 point difference).Claude Opus 4.6 wins 4 out of 4 categories.

Claude 3.5 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score55

Claude Opus 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score86

Knowledge

Claude Opus 4.6

Claude 3.5 Sonnet

63.5

Claude Opus 4.6

96

65
MMLU
99
65
GPQA
97
63
SuperGPQA
95
61
OpenBookQA
93

Coding

Claude Opus 4.6

Claude 3.5 Sonnet

57

Claude Opus 4.6

91

57
HumanEval
91

Mathematics

Claude Opus 4.6

Claude 3.5 Sonnet

64

Claude Opus 4.6

97.1

65
AIME 2023
99
67
AIME 2024
99
66
AIME 2025
98
61
HMMT Feb 2023
95
63
HMMT Feb 2024
97
62
HMMT Feb 2025
96
64
BRUMO 2025
96

Reasoning

Claude Opus 4.6

Claude 3.5 Sonnet

62

Claude Opus 4.6

94

63
SimpleQA
95
61
MuSR
93

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Claude Opus 4.6?

Claude Opus 4.6 scores higher overall with 86 vs 55, a difference of 31 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Claude Opus 4.6?

Claude Opus 4.6 leads in knowledge tasks with an average score of 96 vs 63.5.

Which is better for coding, Claude 3.5 Sonnet or Claude Opus 4.6?

Claude Opus 4.6 leads in coding with an average score of 91 vs 57.

Which is better for math, Claude 3.5 Sonnet or Claude Opus 4.6?

Claude Opus 4.6 leads in math with an average score of 97.1 vs 64.

Which is better for reasoning, Claude 3.5 Sonnet or Claude Opus 4.6?

Claude Opus 4.6 leads in reasoning with an average score of 94 vs 62.

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