Nemotron-4 15B vs LFM2.5-1.2B-Instruct

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

Nemotron-4 15B is clearly ahead on the aggregate, 47 to 30. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Nemotron-4 15B's sharpest advantage is in mathematics, where it averages 61.1 against 37. The single biggest benchmark swing on the page is HumanEval, 46 to 14. LFM2.5-1.2B-Instruct does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.

Quick Verdict

Pick Nemotron-4 15B if you want the stronger benchmark profile. LFM2.5-1.2B-Instruct only becomes the better choice if instruction following is the priority.

Agentic

Nemotron-4 15B

Nemotron-4 15B

41.3

LFM2.5-1.2B-Instruct

25.7

37
Terminal-Bench 2.0
22
47
BrowseComp
31
42
OSWorld-Verified
26

Coding

Nemotron-4 15B

Nemotron-4 15B

26.5

LFM2.5-1.2B-Instruct

7.2

46
HumanEval
14
31
SWE-bench Verified
9
22
LiveCodeBench
8
30
SWE-bench Pro
6

Multimodal & Grounded

Nemotron-4 15B

Nemotron-4 15B

49.6

LFM2.5-1.2B-Instruct

32.4

46
MMMU-Pro
27
54
OfficeQA Pro
39

Reasoning

Nemotron-4 15B

Nemotron-4 15B

53.4

LFM2.5-1.2B-Instruct

32.1

52
SimpleQA
24
50
MuSR
22
73
BBH
59
52
LongBench v2
34
51
MRCRv2
37

Knowledge

Nemotron-4 15B

Nemotron-4 15B

42.6

LFM2.5-1.2B-Instruct

26

54
MMLU
26
53
GPQA
25
51
SuperGPQA
23
49
OpenBookQA
21
63
MMLU-Pro
50
5
HLE
1
50
FrontierScience
30

Instruction Following

LFM2.5-1.2B-Instruct

Nemotron-4 15B

79

LFM2.5-1.2B-Instruct

80

79
IFEval
80

Multilingual

Nemotron-4 15B

Nemotron-4 15B

72.4

LFM2.5-1.2B-Instruct

60.7

75
MGSM
62
71
MMLU-ProX
60

Mathematics

Nemotron-4 15B

Nemotron-4 15B

61.1

LFM2.5-1.2B-Instruct

37

54
AIME 2023
24
56
AIME 2024
26
55
AIME 2025
25
50
HMMT Feb 2023
20
52
HMMT Feb 2024
22
51
HMMT Feb 2025
21
53
BRUMO 2025
23
71
MATH-500
54

Frequently Asked Questions

Which is better, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B is ahead overall, 47 to 30. The biggest single separator in this matchup is HumanEval, where the scores are 46 and 14.

Which is better for knowledge tasks, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for knowledge tasks in this comparison, averaging 42.6 versus 26. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for coding in this comparison, averaging 26.5 versus 7.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for math in this comparison, averaging 61.1 versus 37. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for reasoning in this comparison, averaging 53.4 versus 32.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for agentic tasks in this comparison, averaging 41.3 versus 25.7. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for multimodal and grounded tasks in this comparison, averaging 49.6 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

LFM2.5-1.2B-Instruct 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, Nemotron-4 15B or LFM2.5-1.2B-Instruct?

Nemotron-4 15B has the edge for multilingual tasks in this comparison, averaging 72.4 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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