benchlm.ai

Claude 4.1 Opus Thinking vs GPT-5 mini

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

Quick Verdict

GPT-5 mini wins overall with a score of 68 vs 29 (39 point difference).GPT-5 mini wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

GPT-5 mini

CreatorOpenAI
TypeProprietary
Context128K
Score68

Knowledge

GPT-5 mini

Claude 4.1 Opus Thinking

35.8

GPT-5 mini

85

38
MMLU
88
37
GPQA
86
35
SuperGPQA
84
33
OpenBookQA
82

Coding

GPT-5 mini

Claude 4.1 Opus Thinking

30

GPT-5 mini

80

30
HumanEval
80

Mathematics

GPT-5 mini

Claude 4.1 Opus Thinking

37

GPT-5 mini

89

38
AIME 2023
90
40
AIME 2024
92
39
AIME 2025
91
34
HMMT Feb 2023
86
36
HMMT Feb 2024
88
35
HMMT Feb 2025
87
37
BRUMO 2025
89

Reasoning

GPT-5 mini

Claude 4.1 Opus Thinking

35

GPT-5 mini

83

36
SimpleQA
84
34
MuSR
82

Frequently Asked Questions

Which is better, Claude 4.1 Opus Thinking or GPT-5 mini?

GPT-5 mini scores higher overall with 68 vs 29, a difference of 39 points across all benchmarks.

Which is better for knowledge tasks, Claude 4.1 Opus Thinking or GPT-5 mini?

GPT-5 mini leads in knowledge tasks with an average score of 85 vs 35.8.

Which is better for coding, Claude 4.1 Opus Thinking or GPT-5 mini?

GPT-5 mini leads in coding with an average score of 80 vs 30.

Which is better for math, Claude 4.1 Opus Thinking or GPT-5 mini?

GPT-5 mini leads in math with an average score of 89 vs 37.

Which is better for reasoning, Claude 4.1 Opus Thinking or GPT-5 mini?

GPT-5 mini leads in reasoning with an average score of 83 vs 35.

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