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

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 30. 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 mathematics, where it averages 83.4 against 37. The single biggest benchmark swing on the page is HumanEval, 71 to 14.

MiMo-V2-Flash is the reasoning model in the pair, while LFM2.5-1.2B-Instruct 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. MiMo-V2-Flash gives you the larger context window at 128K, compared with 32K for LFM2.5-1.2B-Instruct.

Quick Verdict

Pick MiMo-V2-Flash if you want the stronger benchmark profile. LFM2.5-1.2B-Instruct only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.

Agentic

MiMo-V2-Flash

MiMo-V2-Flash

61.8

LFM2.5-1.2B-Instruct

25.7

63
Terminal-Bench 2.0
22
65
BrowseComp
31
58
OSWorld-Verified
26

Coding

MiMo-V2-Flash

MiMo-V2-Flash

50

LFM2.5-1.2B-Instruct

7.2

71
HumanEval
14
45
SWE-bench Verified
9
49
LiveCodeBench
8
52
SWE-bench Pro
6

Multimodal & Grounded

MiMo-V2-Flash

MiMo-V2-Flash

75.8

LFM2.5-1.2B-Instruct

32.4

78
MMMU-Pro
27
73
OfficeQA Pro
39

Reasoning

MiMo-V2-Flash

MiMo-V2-Flash

75.3

LFM2.5-1.2B-Instruct

32.1

76
SimpleQA
24
74
MuSR
22
85
BBH
59
74
LongBench v2
34
73
MRCRv2
37

Knowledge

MiMo-V2-Flash

MiMo-V2-Flash

58.8

LFM2.5-1.2B-Instruct

26

79
MMLU
26
78
GPQA
25
76
SuperGPQA
23
74
OpenBookQA
21
72
MMLU-Pro
50
14
HLE
1
71
FrontierScience
30

Instruction Following

MiMo-V2-Flash

MiMo-V2-Flash

84

LFM2.5-1.2B-Instruct

80

84
IFEval
80

Multilingual

MiMo-V2-Flash

MiMo-V2-Flash

79.1

LFM2.5-1.2B-Instruct

60.7

83
MGSM
62
77
MMLU-ProX
60

Mathematics

MiMo-V2-Flash

MiMo-V2-Flash

83.4

LFM2.5-1.2B-Instruct

37

79
AIME 2023
24
81
AIME 2024
26
80
AIME 2025
25
75
HMMT Feb 2023
20
77
HMMT Feb 2024
22
76
HMMT Feb 2025
21
78
BRUMO 2025
23
90
MATH-500
54

Frequently Asked Questions

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

MiMo-V2-Flash is ahead overall, 66 to 30. The biggest single separator in this matchup is HumanEval, where the scores are 71 and 14.

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

MiMo-V2-Flash has the edge for knowledge tasks in this comparison, averaging 58.8 versus 26. 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-Instruct?

MiMo-V2-Flash has the edge for coding in this comparison, averaging 50 versus 7.2. 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-Instruct?

MiMo-V2-Flash has the edge for math in this comparison, averaging 83.4 versus 37. 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-Instruct?

MiMo-V2-Flash has the edge for reasoning in this comparison, averaging 75.3 versus 32.1. 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-Instruct?

MiMo-V2-Flash has the edge for agentic tasks in this comparison, averaging 61.8 versus 25.7. 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-Instruct?

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-Instruct?

MiMo-V2-Flash has the edge for instruction following in this comparison, averaging 84 versus 80. 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-Instruct?

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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