MiMo-V2-Flash vs LFM2.5-1.2B-Thinking

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

MiMo-V2-Flash is clearly ahead on the aggregate, 66 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

MiMo-V2-Flash's sharpest advantage is in multimodal & grounded, where it averages 75.8 against 32.4. The single biggest benchmark swing on the page is HumanEval, 71 to 17.

MiMo-V2-Flash gives you the larger context window at 128K, compared with 32K for LFM2.5-1.2B-Thinking.

Quick Verdict

Pick MiMo-V2-Flash if you want the stronger benchmark profile. LFM2.5-1.2B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

MiMo-V2-Flash

MiMo-V2-Flash

61.8

LFM2.5-1.2B-Thinking

34.1

63
Terminal-Bench 2.0
34
65
BrowseComp
37
58
OSWorld-Verified
32

Coding

MiMo-V2-Flash

MiMo-V2-Flash

50

LFM2.5-1.2B-Thinking

8.2

71
HumanEval
17
45
SWE-bench Verified
10
49
LiveCodeBench
9
52
SWE-bench Pro
7

Multimodal & Grounded

MiMo-V2-Flash

MiMo-V2-Flash

75.8

LFM2.5-1.2B-Thinking

32.4

78
MMMU-Pro
27
73
OfficeQA Pro
39

Reasoning

MiMo-V2-Flash

MiMo-V2-Flash

75.3

LFM2.5-1.2B-Thinking

38.4

76
SimpleQA
29
74
MuSR
31
85
BBH
67
74
LongBench v2
39
73
MRCRv2
42

Knowledge

MiMo-V2-Flash

MiMo-V2-Flash

58.8

LFM2.5-1.2B-Thinking

27

79
MMLU
27
78
GPQA
26
76
SuperGPQA
24
74
OpenBookQA
22
72
MMLU-Pro
51
14
HLE
2
71
FrontierScience
31

Instruction Following

MiMo-V2-Flash

MiMo-V2-Flash

84

LFM2.5-1.2B-Thinking

72

84
IFEval
72

Multilingual

MiMo-V2-Flash

MiMo-V2-Flash

79.1

LFM2.5-1.2B-Thinking

60.7

83
MGSM
62
77
MMLU-ProX
60

Mathematics

MiMo-V2-Flash

MiMo-V2-Flash

83.4

LFM2.5-1.2B-Thinking

42.3

79
AIME 2023
28
81
AIME 2024
30
80
AIME 2025
29
75
HMMT Feb 2023
24
77
HMMT Feb 2024
26
76
HMMT Feb 2025
25
78
BRUMO 2025
27
90
MATH-500
61

Frequently Asked Questions

Which is better, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash is ahead overall, 66 to 33. The biggest single separator in this matchup is HumanEval, where the scores are 71 and 17.

Which is better for knowledge tasks, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for knowledge tasks in this comparison, averaging 58.8 versus 27. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for coding in this comparison, averaging 50 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for math in this comparison, averaging 83.4 versus 42.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for reasoning in this comparison, averaging 75.3 versus 38.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for agentic tasks in this comparison, averaging 61.8 versus 34.1. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for multimodal and grounded tasks in this comparison, averaging 75.8 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for instruction following in this comparison, averaging 84 versus 72. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, MiMo-V2-Flash or LFM2.5-1.2B-Thinking?

MiMo-V2-Flash has the edge for multilingual tasks in this comparison, averaging 79.1 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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