benchlm.ai

Claude Sonnet 4.6 vs GPT-5.4

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

Quick Verdict

GPT-5.4 wins overall with a score of 88 vs 80 (8 point difference).GPT-5.4 wins 0 out of 4 categories.

Claude Sonnet 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score80

GPT-5.4

CreatorOpenAI
TypeProprietary
Context1M
Score88

Knowledge

Tie

Claude Sonnet 4.6

96

GPT-5.4

96

99
MMLU
99
97
GPQA
97
95
SuperGPQA
95
93
OpenBookQA
93

Coding

Claude Sonnet 4.6

Claude Sonnet 4.6

93

GPT-5.4

91

93
HumanEval
91

Mathematics

Tie

Claude Sonnet 4.6

97.1

GPT-5.4

97.1

99
AIME 2023
99
99
AIME 2024
99
98
AIME 2025
98
95
HMMT Feb 2023
95
97
HMMT Feb 2024
97
96
HMMT Feb 2025
96
96
BRUMO 2025
96

Reasoning

Tie

Claude Sonnet 4.6

94

GPT-5.4

94

95
SimpleQA
95
93
MuSR
93

Frequently Asked Questions

Which is better, Claude Sonnet 4.6 or GPT-5.4?

GPT-5.4 scores higher overall with 88 vs 80, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.6 or GPT-5.4?

Claude Sonnet 4.6 and GPT-5.4 are tied for knowledge tasks with average scores of 96.

Which is better for coding, Claude Sonnet 4.6 or GPT-5.4?

Claude Sonnet 4.6 leads in coding with an average score of 93 vs 91.

Which is better for math, Claude Sonnet 4.6 or GPT-5.4?

Claude Sonnet 4.6 and GPT-5.4 are tied for math with average scores of 97.1.

Which is better for reasoning, Claude Sonnet 4.6 or GPT-5.4?

Claude Sonnet 4.6 and GPT-5.4 are tied for reasoning with average scores of 94.

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