benchlm.ai

Gemini 3.1 Flash-Lite vs GPT-5 (high)

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

Quick Verdict

GPT-5 (high) wins overall with a score of 72 vs 53 (19 point difference).GPT-5 (high) wins 4 out of 4 categories.

Gemini 3.1 Flash-Lite

CreatorGoogle
TypeProprietary
Context1M
Score53

GPT-5 (high)

CreatorOpenAI
TypeProprietary
Context128K
Score72

Knowledge

GPT-5 (high)

Gemini 3.1 Flash-Lite

60.8

GPT-5 (high)

90

63
MMLU
93
62
GPQA
91
60
SuperGPQA
89
58
OpenBookQA
87

Coding

GPT-5 (high)

Gemini 3.1 Flash-Lite

55

GPT-5 (high)

85

55
HumanEval
85

Mathematics

GPT-5 (high)

Gemini 3.1 Flash-Lite

62

GPT-5 (high)

94

63
AIME 2023
95
65
AIME 2024
97
64
AIME 2025
96
59
HMMT Feb 2023
91
61
HMMT Feb 2024
93
60
HMMT Feb 2025
92
62
BRUMO 2025
94

Reasoning

GPT-5 (high)

Gemini 3.1 Flash-Lite

59

GPT-5 (high)

88

60
SimpleQA
89
58
MuSR
87

Frequently Asked Questions

Which is better, Gemini 3.1 Flash-Lite or GPT-5 (high)?

GPT-5 (high) scores higher overall with 72 vs 53, a difference of 19 points across all benchmarks.

Which is better for knowledge tasks, Gemini 3.1 Flash-Lite or GPT-5 (high)?

GPT-5 (high) leads in knowledge tasks with an average score of 90 vs 60.8.

Which is better for coding, Gemini 3.1 Flash-Lite or GPT-5 (high)?

GPT-5 (high) leads in coding with an average score of 85 vs 55.

Which is better for math, Gemini 3.1 Flash-Lite or GPT-5 (high)?

GPT-5 (high) leads in math with an average score of 94 vs 62.

Which is better for reasoning, Gemini 3.1 Flash-Lite or GPT-5 (high)?

GPT-5 (high) leads in reasoning with an average score of 88 vs 59.

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