benchlm.ai

Gemini 2.5 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 41 (47 point difference).GPT-5.4 wins 4 out of 4 categories.

Gemini 2.5 Flash

CreatorGoogle
TypeProprietary
Context1M
Score41

GPT-5.4

CreatorOpenAI
TypeProprietary
Context1M
Score88

Knowledge

GPT-5.4

Gemini 2.5 Flash

47.8

GPT-5.4

96

50
MMLU
99
49
GPQA
97
47
SuperGPQA
95
45
OpenBookQA
93

Coding

GPT-5.4

Gemini 2.5 Flash

42

GPT-5.4

91

42
HumanEval
91

Mathematics

GPT-5.4

Gemini 2.5 Flash

49

GPT-5.4

97.1

50
AIME 2023
99
52
AIME 2024
99
51
AIME 2025
98
46
HMMT Feb 2023
95
48
HMMT Feb 2024
97
47
HMMT Feb 2025
96
49
BRUMO 2025
96

Reasoning

GPT-5.4

Gemini 2.5 Flash

47

GPT-5.4

94

48
SimpleQA
95
46
MuSR
93

Frequently Asked Questions

Which is better, Gemini 2.5 Flash or GPT-5.4?

GPT-5.4 scores higher overall with 88 vs 41, a difference of 47 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Flash or GPT-5.4?

GPT-5.4 leads in knowledge tasks with an average score of 96 vs 47.8.

Which is better for coding, Gemini 2.5 Flash or GPT-5.4?

GPT-5.4 leads in coding with an average score of 91 vs 42.

Which is better for math, Gemini 2.5 Flash or GPT-5.4?

GPT-5.4 leads in math with an average score of 97.1 vs 49.

Which is better for reasoning, Gemini 2.5 Flash or GPT-5.4?

GPT-5.4 leads in reasoning with an average score of 94 vs 47.

Related Comparisons

Gemini 2.5 Flash vs Gemini 3.1 ProGemini 2.5 Flash vs Claude Opus 4.6Gemini 2.5 Flash vs GPT-5.3 CodexGemini 2.5 Flash vs Grok 4.1Gemini 2.5 Flash vs GPT-5.2Gemini 2.5 Flash vs GPT-5.2-Codex