Seed-2.0-Mini vs Gemini 2.5 Flash

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

Seed-2.0-Mini is clearly ahead on the aggregate, 53 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Seed-2.0-Mini's sharpest advantage is in mathematics, where it averages 65.1 against 59.4. The single biggest benchmark swing on the page is HumanEval, 55 to 42. Gemini 2.5 Flash does hit back in agentic, so the answer changes if that is the part of the workload you care about most.

Gemini 2.5 Flash is also the more expensive model on tokens at $0.15 input / $0.60 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for Seed-2.0-Mini. Gemini 2.5 Flash gives you the larger context window at 1M, compared with 256K for Seed-2.0-Mini.

Quick Verdict

Pick Seed-2.0-Mini if you want the stronger benchmark profile. Gemini 2.5 Flash only becomes the better choice if agentic is the priority or you need the larger 1M context window.

Agentic

Gemini 2.5 Flash

Seed-2.0-Mini

46.2

Gemini 2.5 Flash

46.5

43
Terminal-Bench 2.0
44
53
BrowseComp
58
45
OSWorld-Verified
41

Coding

Seed-2.0-Mini

Seed-2.0-Mini

24.7

Gemini 2.5 Flash

21.7

55
HumanEval
42
22
SWE-bench Verified
23
21
LiveCodeBench
18
29
SWE-bench Pro
25

Multimodal & Grounded

Seed-2.0-Mini

Seed-2.0-Mini

73.1

Gemini 2.5 Flash

67.7

74
MMMU-Pro
69
72
OfficeQA Pro
66

Reasoning

Seed-2.0-Mini

Seed-2.0-Mini

64.8

Gemini 2.5 Flash

59.2

59
SimpleQA
48
57
MuSR
46
73
BBH
75
68
LongBench v2
68
72
MRCRv2
68

Knowledge

Seed-2.0-Mini

Seed-2.0-Mini

44.6

Gemini 2.5 Flash

40.5

62
MMLU
50
61
GPQA
49
59
SuperGPQA
47
57
OpenBookQA
45
62
MMLU-Pro
64
1
HLE
1
54
FrontierScience
49

Instruction Following

Seed-2.0-Mini

Seed-2.0-Mini

80

Gemini 2.5 Flash

79

80
IFEval
79

Multilingual

Seed-2.0-Mini

Seed-2.0-Mini

71.8

Gemini 2.5 Flash

70.8

75
MGSM
74
70
MMLU-ProX
69

Mathematics

Seed-2.0-Mini

Seed-2.0-Mini

65.1

Gemini 2.5 Flash

59.4

62
AIME 2023
50
64
AIME 2024
52
63
AIME 2025
51
58
HMMT Feb 2023
46
60
HMMT Feb 2024
48
59
HMMT Feb 2025
47
61
BRUMO 2025
49
70
MATH-500
72

Frequently Asked Questions

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

Seed-2.0-Mini is ahead overall, 53 to 49. The biggest single separator in this matchup is HumanEval, where the scores are 55 and 42.

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

Seed-2.0-Mini has the edge for knowledge tasks in this comparison, averaging 44.6 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-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for coding in this comparison, averaging 24.7 versus 21.7. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Seed-2.0-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for math in this comparison, averaging 65.1 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-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for reasoning in this comparison, averaging 64.8 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-Mini or Gemini 2.5 Flash?

Gemini 2.5 Flash has the edge for agentic tasks in this comparison, averaging 46.5 versus 46.2. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Seed-2.0-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 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-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for instruction following in this comparison, averaging 80 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-Mini or Gemini 2.5 Flash?

Seed-2.0-Mini has the edge for multilingual tasks in this comparison, averaging 71.8 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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