GPT-5.4 Pro vs Claude 4.1 Opus Thinking

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

GPT-5.4 Pro is clearly ahead on the aggregate, 94 to 39. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.4 Pro's sharpest advantage is in coding, where it averages 89 against 21.7. The single biggest benchmark swing on the page is LiveCodeBench, 86 to 15.

GPT-5.4 Pro gives you the larger context window at 1.05M, compared with 200K for Claude 4.1 Opus Thinking.

Quick Verdict

Pick GPT-5.4 Pro if you want the stronger benchmark profile. Claude 4.1 Opus Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Knowledge

GPT-5.4 Pro

GPT-5.4 Pro

88.8

Claude 4.1 Opus Thinking

34

99
MMLU
38
99
GPQA
37
97
SuperGPQA
35
94
OpenBookQA
33
94
MMLU-Pro
53
50
HLE
8

Coding

GPT-5.4 Pro

GPT-5.4 Pro

89

Claude 4.1 Opus Thinking

21.7

95
HumanEval
30
86
SWE-bench Verified
20
86
LiveCodeBench
15

Mathematics

GPT-5.4 Pro

GPT-5.4 Pro

98

Claude 4.1 Opus Thinking

40.1

99
AIME 2023
38
99
AIME 2024
40
99
AIME 2025
39
96
HMMT Feb 2023
34
98
HMMT Feb 2024
36
97
HMMT Feb 2025
35
97
BRUMO 2025
37
99
MATH-500
62

Reasoning

GPT-5.4 Pro

GPT-5.4 Pro

96.7

Claude 4.1 Opus Thinking

45.7

97
SimpleQA
36
95
MuSR
34
98
BBH
67

Instruction Following

GPT-5.4 Pro

GPT-5.4 Pro

97

Claude 4.1 Opus Thinking

66

97
IFEval
66

Multilingual

GPT-5.4 Pro

GPT-5.4 Pro

97

Claude 4.1 Opus Thinking

60

97
MGSM
60

Frequently Asked Questions

Which is better, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro is ahead overall, 94 to 39. The biggest single separator in this matchup is LiveCodeBench, where the scores are 86 and 15.

Which is better for knowledge tasks, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for knowledge tasks in this comparison, averaging 88.8 versus 34. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for coding in this comparison, averaging 89 versus 21.7. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for math in this comparison, averaging 98 versus 40.1. Inside this category, HMMT Feb 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for reasoning in this comparison, averaging 96.7 versus 45.7. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for instruction following in this comparison, averaging 97 versus 66. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5.4 Pro or Claude 4.1 Opus Thinking?

GPT-5.4 Pro has the edge for multilingual tasks in this comparison, averaging 97 versus 60. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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