Seed-2.0-Mini vs LFM2.5-1.2B-Thinking

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 33. 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 multimodal & grounded, where it averages 73.1 against 32.4. The single biggest benchmark swing on the page is MMMU-Pro, 74 to 27.

Seed-2.0-Mini is also the more expensive model on tokens at $0.10 input / $0.40 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for LFM2.5-1.2B-Thinking. That is roughly Infinityx on output cost alone. LFM2.5-1.2B-Thinking is the reasoning model in the pair, while Seed-2.0-Mini is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Seed-2.0-Mini gives you the larger context window at 256K, compared with 32K for LFM2.5-1.2B-Thinking.

Quick Verdict

Pick Seed-2.0-Mini if you want the stronger benchmark profile. LFM2.5-1.2B-Thinking only becomes the better choice if you want the cheaper token bill or you want the stronger reasoning-first profile.

Agentic

Seed-2.0-Mini

Seed-2.0-Mini

46.2

LFM2.5-1.2B-Thinking

34.1

43
Terminal-Bench 2.0
34
53
BrowseComp
37
45
OSWorld-Verified
32

Coding

Seed-2.0-Mini

Seed-2.0-Mini

24.7

LFM2.5-1.2B-Thinking

8.2

55
HumanEval
17
22
SWE-bench Verified
10
21
LiveCodeBench
9
29
SWE-bench Pro
7

Multimodal & Grounded

Seed-2.0-Mini

Seed-2.0-Mini

73.1

LFM2.5-1.2B-Thinking

32.4

74
MMMU-Pro
27
72
OfficeQA Pro
39

Reasoning

Seed-2.0-Mini

Seed-2.0-Mini

64.8

LFM2.5-1.2B-Thinking

38.4

59
SimpleQA
29
57
MuSR
31
73
BBH
67
68
LongBench v2
39
72
MRCRv2
42

Knowledge

Seed-2.0-Mini

Seed-2.0-Mini

44.6

LFM2.5-1.2B-Thinking

27

62
MMLU
27
61
GPQA
26
59
SuperGPQA
24
57
OpenBookQA
22
62
MMLU-Pro
51
1
HLE
2
54
FrontierScience
31

Instruction Following

Seed-2.0-Mini

Seed-2.0-Mini

80

LFM2.5-1.2B-Thinking

72

80
IFEval
72

Multilingual

Seed-2.0-Mini

Seed-2.0-Mini

71.8

LFM2.5-1.2B-Thinking

60.7

75
MGSM
62
70
MMLU-ProX
60

Mathematics

Seed-2.0-Mini

Seed-2.0-Mini

65.1

LFM2.5-1.2B-Thinking

42.3

62
AIME 2023
28
64
AIME 2024
30
63
AIME 2025
29
58
HMMT Feb 2023
24
60
HMMT Feb 2024
26
59
HMMT Feb 2025
25
61
BRUMO 2025
27
70
MATH-500
61

Frequently Asked Questions

Which is better, Seed-2.0-Mini or LFM2.5-1.2B-Thinking?

Seed-2.0-Mini is ahead overall, 53 to 33. The biggest single separator in this matchup is MMMU-Pro, where the scores are 74 and 27.

Which is better for knowledge tasks, Seed-2.0-Mini or LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for knowledge tasks in this comparison, averaging 44.6 versus 27. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Seed-2.0-Mini or LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for coding in this comparison, averaging 24.7 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Seed-2.0-Mini or LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for math in this comparison, averaging 65.1 versus 42.3. 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 LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for reasoning in this comparison, averaging 64.8 versus 38.4. 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 LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for agentic tasks in this comparison, averaging 46.2 versus 34.1. 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 LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Seed-2.0-Mini or LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for instruction following in this comparison, averaging 80 versus 72. 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 LFM2.5-1.2B-Thinking?

Seed-2.0-Mini has the edge for multilingual tasks in this comparison, averaging 71.8 versus 60.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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