Claude 3 Opus vs o4-mini (high)

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

Quick Verdict

o4-mini (high) wins overall with a score of 65 vs 51 (14 point difference).o4-mini (high) wins 4 out of 4 categories.

Knowledge

o4-mini (high)

Claude 3 Opus

59.5

o4-mini (high)

80.5

61
MMLU
82
61
GPQA
82
59
SuperGPQA
80
57
OpenBookQA
78

Coding

o4-mini (high)

Claude 3 Opus

53

o4-mini (high)

74

53
HumanEval
74

Mathematics

o4-mini (high)

Claude 3 Opus

60

o4-mini (high)

82

61
AIME 2023
83
63
AIME 2024
85
62
AIME 2025
84
57
HMMT Feb 2023
79
59
HMMT Feb 2024
81
58
HMMT Feb 2025
80
60
BRUMO 2025
82

Reasoning

o4-mini (high)

Claude 3 Opus

58

o4-mini (high)

79

59
SimpleQA
80
57
MuSR
78

Frequently Asked Questions

Which is better, Claude 3 Opus or o4-mini (high)?

o4-mini (high) scores higher overall with 65 vs 51, a difference of 14 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or o4-mini (high)?

o4-mini (high) leads in knowledge tasks with an average score of 80.5 vs 59.5.

Which is better for coding, Claude 3 Opus or o4-mini (high)?

o4-mini (high) leads in coding with an average score of 74 vs 53.

Which is better for math, Claude 3 Opus or o4-mini (high)?

o4-mini (high) leads in math with an average score of 82 vs 60.

Which is better for reasoning, Claude 3 Opus or o4-mini (high)?

o4-mini (high) leads in reasoning with an average score of 79 vs 58.