LFM2-24B-A2B vs LFM2.5-1.2B-Thinking

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

LFM2-24B-A2B is clearly ahead on the aggregate, 38 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

LFM2-24B-A2B's sharpest advantage is in coding, where it averages 18 against 8.2. The single biggest benchmark swing on the page is HumanEval, 42 to 17. LFM2.5-1.2B-Thinking does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.

LFM2-24B-A2B is also the more expensive model on tokens at $0.03 input / $0.12 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 LFM2-24B-A2B 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.

Quick Verdict

Pick LFM2-24B-A2B if you want the stronger benchmark profile. LFM2.5-1.2B-Thinking only becomes the better choice if instruction following is the priority or you want the cheaper token bill.

Agentic

LFM2.5-1.2B-Thinking

LFM2-24B-A2B

33.4

LFM2.5-1.2B-Thinking

34.1

30
Terminal-Bench 2.0
34
38
BrowseComp
37
34
OSWorld-Verified
32

Coding

LFM2-24B-A2B

LFM2-24B-A2B

18

LFM2.5-1.2B-Thinking

8.2

42
HumanEval
17
18
SWE-bench Verified
10
17
LiveCodeBench
9
19
SWE-bench Pro
7

Multimodal & Grounded

LFM2-24B-A2B

LFM2-24B-A2B

41.7

LFM2.5-1.2B-Thinking

32.4

39
MMMU-Pro
27
45
OfficeQA Pro
39

Reasoning

LFM2-24B-A2B

LFM2-24B-A2B

46.6

LFM2.5-1.2B-Thinking

38.4

44
SimpleQA
29
42
MuSR
31
63
BBH
67
48
LongBench v2
39
45
MRCRv2
42

Knowledge

LFM2-24B-A2B

LFM2-24B-A2B

35.6

LFM2.5-1.2B-Thinking

27

46
MMLU
27
45
GPQA
26
43
SuperGPQA
24
41
OpenBookQA
22
51
MMLU-Pro
51
4
HLE
2
43
FrontierScience
31

Instruction Following

LFM2.5-1.2B-Thinking

LFM2-24B-A2B

68

LFM2.5-1.2B-Thinking

72

68
IFEval
72

Multilingual

LFM2-24B-A2B

LFM2-24B-A2B

61.4

LFM2.5-1.2B-Thinking

60.7

64
MGSM
62
60
MMLU-ProX
60

Mathematics

LFM2-24B-A2B

LFM2-24B-A2B

50.4

LFM2.5-1.2B-Thinking

42.3

46
AIME 2023
28
48
AIME 2024
30
47
AIME 2025
29
42
HMMT Feb 2023
24
44
HMMT Feb 2024
26
43
HMMT Feb 2025
25
45
BRUMO 2025
27
57
MATH-500
61

Frequently Asked Questions

Which is better, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B is ahead overall, 38 to 33. The biggest single separator in this matchup is HumanEval, where the scores are 42 and 17.

Which is better for knowledge tasks, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for knowledge tasks in this comparison, averaging 35.6 versus 27. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for coding in this comparison, averaging 18 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for math in this comparison, averaging 50.4 versus 42.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for reasoning in this comparison, averaging 46.6 versus 38.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2.5-1.2B-Thinking has the edge for agentic tasks in this comparison, averaging 34.1 versus 33.4. 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, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for multimodal and grounded tasks in this comparison, averaging 41.7 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2.5-1.2B-Thinking has the edge for instruction following in this comparison, averaging 72 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, LFM2-24B-A2B or LFM2.5-1.2B-Thinking?

LFM2-24B-A2B has the edge for multilingual tasks in this comparison, averaging 61.4 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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