Claude 3 Opus vs GPT-4o

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

Quick Verdict

GPT-4o wins overall with a score of 56 vs 51 (5 point difference).GPT-4o wins 4 out of 4 categories.

Knowledge

GPT-4o

Claude 3 Opus

59.5

GPT-4o

64.5

61
MMLU
66
61
GPQA
66
59
SuperGPQA
64
57
OpenBookQA
62

Coding

GPT-4o

Claude 3 Opus

53

GPT-4o

58

53
HumanEval
58

Mathematics

GPT-4o

Claude 3 Opus

60

GPT-4o

65

61
AIME 2023
66
63
AIME 2024
68
62
AIME 2025
67
57
HMMT Feb 2023
62
59
HMMT Feb 2024
64
58
HMMT Feb 2025
63
60
BRUMO 2025
65

Reasoning

GPT-4o

Claude 3 Opus

58

GPT-4o

63

59
SimpleQA
64
57
MuSR
62

Frequently Asked Questions

Which is better, Claude 3 Opus or GPT-4o?

GPT-4o scores higher overall with 56 vs 51, a difference of 5 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or GPT-4o?

GPT-4o leads in knowledge tasks with an average score of 64.5 vs 59.5.

Which is better for coding, Claude 3 Opus or GPT-4o?

GPT-4o leads in coding with an average score of 58 vs 53.

Which is better for math, Claude 3 Opus or GPT-4o?

GPT-4o leads in math with an average score of 65 vs 60.

Which is better for reasoning, Claude 3 Opus or GPT-4o?

GPT-4o leads in reasoning with an average score of 63 vs 58.