Gemini 2.5 Pro vs Gemini 3.1 Flash-Lite

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

Quick Verdict

Gemini 2.5 Pro wins overall with a score of 65 vs 53 (12 point difference).Gemini 2.5 Pro wins 4 out of 4 categories.

Knowledge

Gemini 2.5 Pro

Gemini 2.5 Pro

81.5

Gemini 3.1 Flash-Lite

60.8

83
MMLU
63
83
GPQA
62
81
SuperGPQA
60
79
OpenBookQA
58

Coding

Gemini 2.5 Pro

Gemini 2.5 Pro

75

Gemini 3.1 Flash-Lite

55

75
HumanEval
55

Mathematics

Gemini 2.5 Pro

Gemini 2.5 Pro

83

Gemini 3.1 Flash-Lite

62

84
AIME 2023
63
86
AIME 2024
65
85
AIME 2025
64
80
HMMT Feb 2023
59
82
HMMT Feb 2024
61
81
HMMT Feb 2025
60
83
BRUMO 2025
62

Reasoning

Gemini 2.5 Pro

Gemini 2.5 Pro

80

Gemini 3.1 Flash-Lite

59

81
SimpleQA
60
79
MuSR
58

Frequently Asked Questions

Which is better, Gemini 2.5 Pro or Gemini 3.1 Flash-Lite?

Gemini 2.5 Pro scores higher overall with 65 vs 53, a difference of 12 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Pro or Gemini 3.1 Flash-Lite?

Gemini 2.5 Pro leads in knowledge tasks with an average score of 81.5 vs 60.8.

Which is better for coding, Gemini 2.5 Pro or Gemini 3.1 Flash-Lite?

Gemini 2.5 Pro leads in coding with an average score of 75 vs 55.

Which is better for math, Gemini 2.5 Pro or Gemini 3.1 Flash-Lite?

Gemini 2.5 Pro leads in math with an average score of 83 vs 62.

Which is better for reasoning, Gemini 2.5 Pro or Gemini 3.1 Flash-Lite?

Gemini 2.5 Pro leads in reasoning with an average score of 80 vs 59.