benchlm.ai

Gemini 3 Flash vs GPT-5.4

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

Quick Verdict

GPT-5.4 wins overall with a score of 88 vs 58 (30 point difference).GPT-5.4 wins 4 out of 4 categories.

Gemini 3 Flash

CreatorGoogle
TypeProprietary
Context1M
Score58

GPT-5.4

CreatorOpenAI
TypeProprietary
Context1M
Score88

Knowledge

GPT-5.4

Gemini 3 Flash

67.8

GPT-5.4

96

70
MMLU
99
69
GPQA
97
67
SuperGPQA
95
65
OpenBookQA
93

Coding

GPT-5.4

Gemini 3 Flash

62

GPT-5.4

91

62
HumanEval
91

Mathematics

GPT-5.4

Gemini 3 Flash

69

GPT-5.4

97.1

70
AIME 2023
99
72
AIME 2024
99
71
AIME 2025
98
66
HMMT Feb 2023
95
68
HMMT Feb 2024
97
67
HMMT Feb 2025
96
69
BRUMO 2025
96

Reasoning

GPT-5.4

Gemini 3 Flash

66

GPT-5.4

94

67
SimpleQA
95
65
MuSR
93

Frequently Asked Questions

Which is better, Gemini 3 Flash or GPT-5.4?

GPT-5.4 scores higher overall with 88 vs 58, a difference of 30 points across all benchmarks.

Which is better for knowledge tasks, Gemini 3 Flash or GPT-5.4?

GPT-5.4 leads in knowledge tasks with an average score of 96 vs 67.8.

Which is better for coding, Gemini 3 Flash or GPT-5.4?

GPT-5.4 leads in coding with an average score of 91 vs 62.

Which is better for math, Gemini 3 Flash or GPT-5.4?

GPT-5.4 leads in math with an average score of 97.1 vs 69.

Which is better for reasoning, Gemini 3 Flash or GPT-5.4?

GPT-5.4 leads in reasoning with an average score of 94 vs 66.

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