benchlm.ai

Claude 3 Opus vs Claude Sonnet 4.6

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

Quick Verdict

Claude Sonnet 4.6 wins overall with a score of 80 vs 51 (29 point difference).Claude Sonnet 4.6 wins 4 out of 4 categories.

Claude 3 Opus

CreatorAnthropic
TypeProprietary
Context200K
Score51

Claude Sonnet 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score80

Knowledge

Claude Sonnet 4.6

Claude 3 Opus

59.5

Claude Sonnet 4.6

96

61
MMLU
99
61
GPQA
97
59
SuperGPQA
95
57
OpenBookQA
93

Coding

Claude Sonnet 4.6

Claude 3 Opus

53

Claude Sonnet 4.6

93

53
HumanEval
93

Mathematics

Claude Sonnet 4.6

Claude 3 Opus

60

Claude Sonnet 4.6

97.1

61
AIME 2023
99
63
AIME 2024
99
62
AIME 2025
98
57
HMMT Feb 2023
95
59
HMMT Feb 2024
97
58
HMMT Feb 2025
96
60
BRUMO 2025
96

Reasoning

Claude Sonnet 4.6

Claude 3 Opus

58

Claude Sonnet 4.6

94

59
SimpleQA
95
57
MuSR
93

Frequently Asked Questions

Which is better, Claude 3 Opus or Claude Sonnet 4.6?

Claude Sonnet 4.6 scores higher overall with 80 vs 51, a difference of 29 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or Claude Sonnet 4.6?

Claude Sonnet 4.6 leads in knowledge tasks with an average score of 96 vs 59.5.

Which is better for coding, Claude 3 Opus or Claude Sonnet 4.6?

Claude Sonnet 4.6 leads in coding with an average score of 93 vs 53.

Which is better for math, Claude 3 Opus or Claude Sonnet 4.6?

Claude Sonnet 4.6 leads in math with an average score of 97.1 vs 60.

Which is better for reasoning, Claude 3 Opus or Claude Sonnet 4.6?

Claude Sonnet 4.6 leads in reasoning with an average score of 94 vs 58.

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