benchlm.ai

Claude 3 Opus vs Claude 4 Sonnet

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

Quick Verdict

Claude 4 Sonnet wins overall with a score of 59 vs 51 (8 point difference).Claude 4 Sonnet wins 4 out of 4 categories.

Claude 3 Opus

CreatorAnthropic
TypeProprietary
Context200K
Score51

Claude 4 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score59

Knowledge

Claude 4 Sonnet

Claude 3 Opus

59.5

Claude 4 Sonnet

71.5

61
MMLU
73
61
GPQA
73
59
SuperGPQA
71
57
OpenBookQA
69

Coding

Claude 4 Sonnet

Claude 3 Opus

53

Claude 4 Sonnet

65

53
HumanEval
65

Mathematics

Claude 4 Sonnet

Claude 3 Opus

60

Claude 4 Sonnet

72

61
AIME 2023
73
63
AIME 2024
75
62
AIME 2025
74
57
HMMT Feb 2023
69
59
HMMT Feb 2024
71
58
HMMT Feb 2025
70
60
BRUMO 2025
72

Reasoning

Claude 4 Sonnet

Claude 3 Opus

58

Claude 4 Sonnet

70

59
SimpleQA
71
57
MuSR
69

Frequently Asked Questions

Which is better, Claude 3 Opus or Claude 4 Sonnet?

Claude 4 Sonnet scores higher overall with 59 vs 51, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or Claude 4 Sonnet?

Claude 4 Sonnet leads in knowledge tasks with an average score of 71.5 vs 59.5.

Which is better for coding, Claude 3 Opus or Claude 4 Sonnet?

Claude 4 Sonnet leads in coding with an average score of 65 vs 53.

Which is better for math, Claude 3 Opus or Claude 4 Sonnet?

Claude 4 Sonnet leads in math with an average score of 72 vs 60.

Which is better for reasoning, Claude 3 Opus or Claude 4 Sonnet?

Claude 4 Sonnet leads in reasoning with an average score of 70 vs 58.

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