benchlm.ai

Gemini 2.5 Flash 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 41 (27 point difference).GPT-5 mini wins 4 out of 4 categories.

Gemini 2.5 Flash

CreatorGoogle
TypeProprietary
Context1M
Score41

GPT-5 mini

CreatorOpenAI
TypeProprietary
Context128K
Score68

Knowledge

GPT-5 mini

Gemini 2.5 Flash

47.8

GPT-5 mini

85

50
MMLU
88
49
GPQA
86
47
SuperGPQA
84
45
OpenBookQA
82

Coding

GPT-5 mini

Gemini 2.5 Flash

42

GPT-5 mini

80

42
HumanEval
80

Mathematics

GPT-5 mini

Gemini 2.5 Flash

49

GPT-5 mini

89

50
AIME 2023
90
52
AIME 2024
92
51
AIME 2025
91
46
HMMT Feb 2023
86
48
HMMT Feb 2024
88
47
HMMT Feb 2025
87
49
BRUMO 2025
89

Reasoning

GPT-5 mini

Gemini 2.5 Flash

47

GPT-5 mini

83

48
SimpleQA
84
46
MuSR
82

Frequently Asked Questions

Which is better, Gemini 2.5 Flash or GPT-5 mini?

GPT-5 mini scores higher overall with 68 vs 41, a difference of 27 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Flash or GPT-5 mini?

GPT-5 mini leads in knowledge tasks with an average score of 85 vs 47.8.

Which is better for coding, Gemini 2.5 Flash or GPT-5 mini?

GPT-5 mini leads in coding with an average score of 80 vs 42.

Which is better for math, Gemini 2.5 Flash or GPT-5 mini?

GPT-5 mini leads in math with an average score of 89 vs 49.

Which is better for reasoning, Gemini 2.5 Flash or GPT-5 mini?

GPT-5 mini leads in reasoning with an average score of 83 vs 47.

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