benchlm.ai

Claude Opus 4.6 vs GPT-4o

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 56 (30 point difference).Claude Opus 4.6 wins 4 out of 4 categories.

Claude Opus 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score86

GPT-4o

CreatorOpenAI
TypeProprietary
Context128K
Score56

Knowledge

Claude Opus 4.6

Claude Opus 4.6

96

GPT-4o

64.5

99
MMLU
66
97
GPQA
66
95
SuperGPQA
64
93
OpenBookQA
62

Coding

Claude Opus 4.6

Claude Opus 4.6

91

GPT-4o

58

91
HumanEval
58

Mathematics

Claude Opus 4.6

Claude Opus 4.6

97.1

GPT-4o

65

99
AIME 2023
66
99
AIME 2024
68
98
AIME 2025
67
95
HMMT Feb 2023
62
97
HMMT Feb 2024
64
96
HMMT Feb 2025
63
96
BRUMO 2025
65

Reasoning

Claude Opus 4.6

Claude Opus 4.6

94

GPT-4o

63

95
SimpleQA
64
93
MuSR
62

Frequently Asked Questions

Which is better, Claude Opus 4.6 or GPT-4o?

Claude Opus 4.6 scores higher overall with 86 vs 56, a difference of 30 points across all benchmarks.

Which is better for knowledge tasks, Claude Opus 4.6 or GPT-4o?

Claude Opus 4.6 leads in knowledge tasks with an average score of 96 vs 64.5.

Which is better for coding, Claude Opus 4.6 or GPT-4o?

Claude Opus 4.6 leads in coding with an average score of 91 vs 58.

Which is better for math, Claude Opus 4.6 or GPT-4o?

Claude Opus 4.6 leads in math with an average score of 97.1 vs 65.

Which is better for reasoning, Claude Opus 4.6 or GPT-4o?

Claude Opus 4.6 leads in reasoning with an average score of 94 vs 63.

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