benchlm.ai

GPT-5 (medium) vs o4-mini (high)

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

Quick Verdict

GPT-5 (medium) wins overall with a score of 70 vs 65 (5 point difference).GPT-5 (medium) wins 4 out of 4 categories.

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

o4-mini (high)

CreatorOpenAI
TypeProprietary
Context200K
Score65

Knowledge

GPT-5 (medium)

GPT-5 (medium)

88

o4-mini (high)

80.5

91
MMLU
82
89
GPQA
82
87
SuperGPQA
80
85
OpenBookQA
78

Coding

GPT-5 (medium)

GPT-5 (medium)

83

o4-mini (high)

74

83
HumanEval
74

Mathematics

GPT-5 (medium)

GPT-5 (medium)

92

o4-mini (high)

82

93
AIME 2023
83
95
AIME 2024
85
94
AIME 2025
84
89
HMMT Feb 2023
79
91
HMMT Feb 2024
81
90
HMMT Feb 2025
80
92
BRUMO 2025
82

Reasoning

GPT-5 (medium)

GPT-5 (medium)

86

o4-mini (high)

79

87
SimpleQA
80
85
MuSR
78

Frequently Asked Questions

Which is better, GPT-5 (medium) or o4-mini (high)?

GPT-5 (medium) scores higher overall with 70 vs 65, a difference of 5 points across all benchmarks.

Which is better for knowledge tasks, GPT-5 (medium) or o4-mini (high)?

GPT-5 (medium) leads in knowledge tasks with an average score of 88 vs 80.5.

Which is better for coding, GPT-5 (medium) or o4-mini (high)?

GPT-5 (medium) leads in coding with an average score of 83 vs 74.

Which is better for math, GPT-5 (medium) or o4-mini (high)?

GPT-5 (medium) leads in math with an average score of 92 vs 82.

Which is better for reasoning, GPT-5 (medium) or o4-mini (high)?

GPT-5 (medium) leads in reasoning with an average score of 86 vs 79.

Related Comparisons

GPT-5 (medium) vs GPT-5.4GPT-5 (medium) vs Gemini 3.1 ProGPT-5 (medium) vs Claude Opus 4.6GPT-5 (medium) vs GPT-5.3 CodexGPT-5 (medium) vs Grok 4.1GPT-5 (medium) vs GPT-5.2