DeepSeek V3.1 (Reasoning) vs Gemini 3.1 Flash-Lite

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

Quick Verdict

Gemini 3.1 Flash-Lite wins overall with a score of 53 vs 25 (28 point difference).Gemini 3.1 Flash-Lite wins 4 out of 4 categories.

Knowledge

Gemini 3.1 Flash-Lite

DeepSeek V3.1 (Reasoning)

31.8

Gemini 3.1 Flash-Lite

60.8

34
MMLU
63
33
GPQA
62
31
SuperGPQA
60
29
OpenBookQA
58

Coding

Gemini 3.1 Flash-Lite

DeepSeek V3.1 (Reasoning)

26

Gemini 3.1 Flash-Lite

55

26
HumanEval
55

Mathematics

Gemini 3.1 Flash-Lite

DeepSeek V3.1 (Reasoning)

33

Gemini 3.1 Flash-Lite

62

34
AIME 2023
63
36
AIME 2024
65
35
AIME 2025
64
30
HMMT Feb 2023
59
32
HMMT Feb 2024
61
31
HMMT Feb 2025
60
33
BRUMO 2025
62

Reasoning

Gemini 3.1 Flash-Lite

DeepSeek V3.1 (Reasoning)

31

Gemini 3.1 Flash-Lite

59

32
SimpleQA
60
30
MuSR
58

Frequently Asked Questions

Which is better, DeepSeek V3.1 (Reasoning) or Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite scores higher overall with 53 vs 25, a difference of 28 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 (Reasoning) or Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite leads in knowledge tasks with an average score of 60.8 vs 31.8.

Which is better for coding, DeepSeek V3.1 (Reasoning) or Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite leads in coding with an average score of 55 vs 26.

Which is better for math, DeepSeek V3.1 (Reasoning) or Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite leads in math with an average score of 62 vs 33.

Which is better for reasoning, DeepSeek V3.1 (Reasoning) or Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite leads in reasoning with an average score of 59 vs 31.