Seed-2.0-Lite vs Gemini 3.1 Flash-Lite

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

Seed-2.0-Lite is clearly ahead on the aggregate, 63 to 53. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Seed-2.0-Lite's sharpest advantage is in coding, where it averages 41.4 against 24.7. The single biggest benchmark swing on the page is SWE-bench Verified, 45 to 22.

Seed-2.0-Lite is also the more expensive model on tokens at $0.25 input / $2.00 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for Gemini 3.1 Flash-Lite. That is roughly 5.0x on output cost alone. Gemini 3.1 Flash-Lite gives you the larger context window at 1M, compared with 256K for Seed-2.0-Lite.

Quick Verdict

Pick Seed-2.0-Lite if you want the stronger benchmark profile. Gemini 3.1 Flash-Lite only becomes the better choice if you want the cheaper token bill or you need the larger 1M context window.

Agentic

Seed-2.0-Lite

Seed-2.0-Lite

55.1

Gemini 3.1 Flash-Lite

49.2

52
Terminal-Bench 2.0
47
63
BrowseComp
60
53
OSWorld-Verified
44

Coding

Seed-2.0-Lite

Seed-2.0-Lite

41.4

Gemini 3.1 Flash-Lite

24.7

63
HumanEval
55
45
SWE-bench Verified
22
37
LiveCodeBench
21
45
SWE-bench Pro
29

Multimodal & Grounded

Seed-2.0-Lite

Seed-2.0-Lite

79.6

Gemini 3.1 Flash-Lite

73.1

80
MMMU-Pro
74
79
OfficeQA Pro
72

Reasoning

Seed-2.0-Lite

Seed-2.0-Lite

73

Gemini 3.1 Flash-Lite

65.8

68
SimpleQA
60
66
MuSR
58
85
BBH
74
76
LongBench v2
69
77
MRCRv2
73

Knowledge

Seed-2.0-Lite

Seed-2.0-Lite

53.9

Gemini 3.1 Flash-Lite

45.3

71
MMLU
63
70
GPQA
62
68
SuperGPQA
60
66
OpenBookQA
58
73
MMLU-Pro
63
7
HLE
1
66
FrontierScience
55

Instruction Following

Seed-2.0-Lite

Seed-2.0-Lite

89

Gemini 3.1 Flash-Lite

79

89
IFEval
79

Multilingual

Seed-2.0-Lite

Seed-2.0-Lite

82.5

Gemini 3.1 Flash-Lite

69.8

87
MGSM
73
80
MMLU-ProX
68

Mathematics

Seed-2.0-Lite

Seed-2.0-Lite

75

Gemini 3.1 Flash-Lite

66.1

71
AIME 2023
63
73
AIME 2024
65
72
AIME 2025
64
67
HMMT Feb 2023
59
69
HMMT Feb 2024
61
68
HMMT Feb 2025
60
70
BRUMO 2025
62
81
MATH-500
71

Frequently Asked Questions

Which is better, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite is ahead overall, 63 to 53. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 45 and 22.

Which is better for knowledge tasks, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for knowledge tasks in this comparison, averaging 53.9 versus 45.3. Inside this category, FrontierScience is the benchmark that creates the most daylight between them.

Which is better for coding, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for coding in this comparison, averaging 41.4 versus 24.7. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for math in this comparison, averaging 75 versus 66.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for reasoning in this comparison, averaging 73 versus 65.8. Inside this category, BBH is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for agentic tasks in this comparison, averaging 55.1 versus 49.2. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 73.1. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for instruction following in this comparison, averaging 89 versus 79. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Seed-2.0-Lite or Gemini 3.1 Flash-Lite?

Seed-2.0-Lite has the edge for multilingual tasks in this comparison, averaging 82.5 versus 69.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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