benchlm.ai

GPT-5 (medium) vs o1-preview

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

Quick Verdict

o1-preview wins overall with a score of 71 vs 70 (1 point difference).o1-preview wins 4 out of 4 categories.

GPT-5 (medium)

CreatorOpenAI
TypeProprietary
Context128K
Score70

o1-preview

CreatorOpenAI
TypeProprietary
Context200K
Score71

Knowledge

o1-preview

GPT-5 (medium)

88

o1-preview

89

91
MMLU
92
89
GPQA
90
87
SuperGPQA
88
85
OpenBookQA
86

Coding

o1-preview

GPT-5 (medium)

83

o1-preview

86

83
HumanEval
86

Mathematics

o1-preview

GPT-5 (medium)

92

o1-preview

93

93
AIME 2023
94
95
AIME 2024
96
94
AIME 2025
95
89
HMMT Feb 2023
90
91
HMMT Feb 2024
92
90
HMMT Feb 2025
91
92
BRUMO 2025
93

Reasoning

o1-preview

GPT-5 (medium)

86

o1-preview

87

87
SimpleQA
88
85
MuSR
86

Frequently Asked Questions

Which is better, GPT-5 (medium) or o1-preview?

o1-preview scores higher overall with 71 vs 70, a difference of 1 points across all benchmarks.

Which is better for knowledge tasks, GPT-5 (medium) or o1-preview?

o1-preview leads in knowledge tasks with an average score of 89 vs 88.

Which is better for coding, GPT-5 (medium) or o1-preview?

o1-preview leads in coding with an average score of 86 vs 83.

Which is better for math, GPT-5 (medium) or o1-preview?

o1-preview leads in math with an average score of 93 vs 92.

Which is better for reasoning, GPT-5 (medium) or o1-preview?

o1-preview leads in reasoning with an average score of 87 vs 86.

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