benchlm.ai

Claude 4.1 Opus Thinking vs GPT-5 (medium)

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

Quick Verdict

GPT-5 (medium) wins overall with a score of 70 vs 29 (41 point difference).GPT-5 (medium) wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

Knowledge

GPT-5 (medium)

Claude 4.1 Opus Thinking

35.8

GPT-5 (medium)

88

38
MMLU
91
37
GPQA
89
35
SuperGPQA
87
33
OpenBookQA
85

Coding

GPT-5 (medium)

Claude 4.1 Opus Thinking

30

GPT-5 (medium)

83

30
HumanEval
83

Mathematics

GPT-5 (medium)

Claude 4.1 Opus Thinking

37

GPT-5 (medium)

92

38
AIME 2023
93
40
AIME 2024
95
39
AIME 2025
94
34
HMMT Feb 2023
89
36
HMMT Feb 2024
91
35
HMMT Feb 2025
90
37
BRUMO 2025
92

Reasoning

GPT-5 (medium)

Claude 4.1 Opus Thinking

35

GPT-5 (medium)

86

36
SimpleQA
87
34
MuSR
85

Frequently Asked Questions

Which is better, Claude 4.1 Opus Thinking or GPT-5 (medium)?

GPT-5 (medium) scores higher overall with 70 vs 29, a difference of 41 points across all benchmarks.

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

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 35.8.

Which is better for coding, Claude 4.1 Opus Thinking or GPT-5 (medium)?

GPT-5 (medium) leads in coding with an average score of 83 vs 30.

Which is better for math, Claude 4.1 Opus Thinking or GPT-5 (medium)?

GPT-5 (medium) leads in math with an average score of 92 vs 37.

Which is better for reasoning, Claude 4.1 Opus Thinking or GPT-5 (medium)?

GPT-5 (medium) leads in reasoning with an average score of 86 vs 35.

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