Gemini 3.1 Flash-Lite vs GPT-4.1 nano

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

Gemini 3.1 Flash-Lite is clearly ahead on the aggregate, 55 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemini 3.1 Flash-Lite's sharpest advantage is in mathematics, where it averages 63.1 against 9.8. The single biggest benchmark swing on the page is AIME 2024, 65 to 9.8. GPT-4.1 nano does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

Quick Verdict

Pick Gemini 3.1 Flash-Lite if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if knowledge is the priority.

Knowledge

GPT-4.1 nano

Gemini 3.1 Flash-Lite

51.2

GPT-4.1 nano

65.2

63
MMLU
80.1
62
GPQA
50.3
60
SuperGPQA
-
58
OpenBookQA
-
63
MMLU-Pro
-
1
HLE
-

Coding

Gemini 3.1 Flash-Lite
55
HumanEval
-
22
SWE-bench Verified
-
21
LiveCodeBench
-

Mathematics

Gemini 3.1 Flash-Lite

Gemini 3.1 Flash-Lite

63.1

GPT-4.1 nano

9.8

63
AIME 2023
-
65
AIME 2024
9.8
64
AIME 2025
-
59
HMMT Feb 2023
-
61
HMMT Feb 2024
-
60
HMMT Feb 2025
-
62
BRUMO 2025
-
71
MATH-500
-

Reasoning

Gemini 3.1 Flash-Lite
60
SimpleQA
-
58
MuSR
-
74
BBH
-

Instruction Following

GPT-4.1 nano

Gemini 3.1 Flash-Lite

79

GPT-4.1 nano

83.2

79
IFEval
83.2

Multilingual

Gemini 3.1 Flash-Lite
73
MGSM
-

Frequently Asked Questions

Which is better, Gemini 3.1 Flash-Lite or GPT-4.1 nano?

Gemini 3.1 Flash-Lite is ahead overall, 55 to 23. The biggest single separator in this matchup is AIME 2024, where the scores are 65 and 9.8.

Which is better for knowledge tasks, Gemini 3.1 Flash-Lite or GPT-4.1 nano?

GPT-4.1 nano has the edge for knowledge tasks in this comparison, averaging 65.2 versus 51.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for math, Gemini 3.1 Flash-Lite or GPT-4.1 nano?

Gemini 3.1 Flash-Lite has the edge for math in this comparison, averaging 63.1 versus 9.8. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for instruction following, Gemini 3.1 Flash-Lite or GPT-4.1 nano?

GPT-4.1 nano has the edge for instruction following in this comparison, averaging 83.2 versus 79. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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