Claude Sonnet 4.6 vs GPT-5 (medium)

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 70 (10 point difference).Claude Sonnet 4.6 wins 4 out of 4 categories.

Knowledge

Claude Sonnet 4.6

Claude Sonnet 4.6

96

GPT-5 (medium)

88

99
MMLU
91
97
GPQA
89
95
SuperGPQA
87
93
OpenBookQA
85

Coding

Claude Sonnet 4.6

Claude Sonnet 4.6

93

GPT-5 (medium)

83

93
HumanEval
83

Mathematics

Claude Sonnet 4.6

Claude Sonnet 4.6

97.1

GPT-5 (medium)

92

99
AIME 2023
93
99
AIME 2024
95
98
AIME 2025
94
95
HMMT Feb 2023
89
97
HMMT Feb 2024
91
96
HMMT Feb 2025
90
96
BRUMO 2025
92

Reasoning

Claude Sonnet 4.6

Claude Sonnet 4.6

94

GPT-5 (medium)

86

95
SimpleQA
87
93
MuSR
85

Frequently Asked Questions

Which is better, Claude Sonnet 4.6 or GPT-5 (medium)?

Claude Sonnet 4.6 scores higher overall with 80 vs 70, a difference of 10 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.6 or GPT-5 (medium)?

Claude Sonnet 4.6 leads in knowledge tasks with an average score of 96 vs 88.

Which is better for coding, Claude Sonnet 4.6 or GPT-5 (medium)?

Claude Sonnet 4.6 leads in coding with an average score of 93 vs 83.

Which is better for math, Claude Sonnet 4.6 or GPT-5 (medium)?

Claude Sonnet 4.6 leads in math with an average score of 97.1 vs 92.

Which is better for reasoning, Claude Sonnet 4.6 or GPT-5 (medium)?

Claude Sonnet 4.6 leads in reasoning with an average score of 94 vs 86.