Seed-2.0-Lite vs Gemini 2.5 Flash

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 49. 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 21.7. The single biggest benchmark swing on the page is SWE-bench Verified, 45 to 23.

Seed-2.0-Lite is also the more expensive model on tokens at $0.25 input / $2.00 output per 1M tokens, versus $0.15 input / $0.60 output per 1M tokens for Gemini 2.5 Flash. That is roughly 3.3x on output cost alone. Gemini 2.5 Flash 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 2.5 Flash 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 2.5 Flash

46.5

52
Terminal-Bench 2.0
44
63
BrowseComp
58
53
OSWorld-Verified
41

Coding

Seed-2.0-Lite

Seed-2.0-Lite

41.4

Gemini 2.5 Flash

21.7

63
HumanEval
42
45
SWE-bench Verified
23
37
LiveCodeBench
18
45
SWE-bench Pro
25

Multimodal & Grounded

Seed-2.0-Lite

Seed-2.0-Lite

79.6

Gemini 2.5 Flash

67.7

80
MMMU-Pro
69
79
OfficeQA Pro
66

Reasoning

Seed-2.0-Lite

Seed-2.0-Lite

73

Gemini 2.5 Flash

59.2

68
SimpleQA
48
66
MuSR
46
85
BBH
75
76
LongBench v2
68
77
MRCRv2
68

Knowledge

Seed-2.0-Lite

Seed-2.0-Lite

53.9

Gemini 2.5 Flash

40.5

71
MMLU
50
70
GPQA
49
68
SuperGPQA
47
66
OpenBookQA
45
73
MMLU-Pro
64
7
HLE
1
66
FrontierScience
49

Instruction Following

Seed-2.0-Lite

Seed-2.0-Lite

89

Gemini 2.5 Flash

79

89
IFEval
79

Multilingual

Seed-2.0-Lite

Seed-2.0-Lite

82.5

Gemini 2.5 Flash

70.8

87
MGSM
74
80
MMLU-ProX
69

Mathematics

Seed-2.0-Lite

Seed-2.0-Lite

75

Gemini 2.5 Flash

59.4

71
AIME 2023
50
73
AIME 2024
52
72
AIME 2025
51
67
HMMT Feb 2023
46
69
HMMT Feb 2024
48
68
HMMT Feb 2025
47
70
BRUMO 2025
49
81
MATH-500
72

Frequently Asked Questions

Which is better, Seed-2.0-Lite or Gemini 2.5 Flash?

Seed-2.0-Lite is ahead overall, 63 to 49. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 45 and 23.

Which is better for knowledge tasks, Seed-2.0-Lite or Gemini 2.5 Flash?

Seed-2.0-Lite has the edge for knowledge tasks in this comparison, averaging 53.9 versus 40.5. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Seed-2.0-Lite or Gemini 2.5 Flash?

Seed-2.0-Lite has the edge for coding in this comparison, averaging 41.4 versus 21.7. 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 2.5 Flash?

Seed-2.0-Lite has the edge for math in this comparison, averaging 75 versus 59.4. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Seed-2.0-Lite or Gemini 2.5 Flash?

Seed-2.0-Lite has the edge for reasoning in this comparison, averaging 73 versus 59.2. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Seed-2.0-Lite or Gemini 2.5 Flash?

Seed-2.0-Lite has the edge for agentic tasks in this comparison, averaging 55.1 versus 46.5. 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 2.5 Flash?

Seed-2.0-Lite has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 67.7. 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 2.5 Flash?

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 2.5 Flash?

Seed-2.0-Lite has the edge for multilingual tasks in this comparison, averaging 82.5 versus 70.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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