DeepSeek V3.1 (Reasoning) vs LFM2-24B-A2B

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

DeepSeek V3.1 (Reasoning) has the cleaner overall profile here, landing at 41 versus 38. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

DeepSeek V3.1 (Reasoning)'s sharpest advantage is in agentic, where it averages 44.2 against 33.4. The single biggest benchmark swing on the page is HumanEval, 26 to 42. LFM2-24B-A2B does hit back in mathematics, so the answer changes if that is the part of the workload you care about most.

DeepSeek V3.1 (Reasoning) 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. DeepSeek V3.1 (Reasoning) gives you the larger context window at 128K, compared with 32K for LFM2-24B-A2B.

Quick Verdict

Pick DeepSeek V3.1 (Reasoning) if you want the stronger benchmark profile. LFM2-24B-A2B only becomes the better choice if mathematics is the priority or you would rather avoid the extra latency and token burn of a reasoning model.

Agentic

DeepSeek V3.1 (Reasoning)

DeepSeek V3.1 (Reasoning)

44.2

LFM2-24B-A2B

33.4

42
Terminal-Bench 2.0
30
48
BrowseComp
38
44
OSWorld-Verified
34

Coding

DeepSeek V3.1 (Reasoning)

DeepSeek V3.1 (Reasoning)

19.9

LFM2-24B-A2B

18

26
HumanEval
42
14
SWE-bench Verified
18
16
LiveCodeBench
17
25
SWE-bench Pro
19

Multimodal & Grounded

LFM2-24B-A2B

DeepSeek V3.1 (Reasoning)

41.5

LFM2-24B-A2B

41.7

37
MMMU-Pro
39
47
OfficeQA Pro
45

Reasoning

LFM2-24B-A2B

DeepSeek V3.1 (Reasoning)

45.8

LFM2-24B-A2B

46.6

32
SimpleQA
44
30
MuSR
42
64
BBH
63
57
LongBench v2
48
56
MRCRv2
45

Knowledge

LFM2-24B-A2B

DeepSeek V3.1 (Reasoning)

32.8

LFM2-24B-A2B

35.6

34
MMLU
46
33
GPQA
45
31
SuperGPQA
43
29
OpenBookQA
41
53
MMLU-Pro
51
10
HLE
4
37
FrontierScience
43

Instruction Following

DeepSeek V3.1 (Reasoning)

DeepSeek V3.1 (Reasoning)

70

LFM2-24B-A2B

68

70
IFEval
68

Multilingual

DeepSeek V3.1 (Reasoning)

DeepSeek V3.1 (Reasoning)

62.1

LFM2-24B-A2B

61.4

64
MGSM
64
61
MMLU-ProX
60

Mathematics

LFM2-24B-A2B

DeepSeek V3.1 (Reasoning)

46.1

LFM2-24B-A2B

50.4

34
AIME 2023
46
36
AIME 2024
48
35
AIME 2025
47
30
HMMT Feb 2023
42
32
HMMT Feb 2024
44
31
HMMT Feb 2025
43
33
BRUMO 2025
45
62
MATH-500
57

Frequently Asked Questions

Which is better, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

DeepSeek V3.1 (Reasoning) is ahead overall, 41 to 38. The biggest single separator in this matchup is HumanEval, where the scores are 26 and 42.

Which is better for knowledge tasks, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

LFM2-24B-A2B has the edge for knowledge tasks in this comparison, averaging 35.6 versus 32.8. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

DeepSeek V3.1 (Reasoning) has the edge for coding in this comparison, averaging 19.9 versus 18. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

LFM2-24B-A2B has the edge for math in this comparison, averaging 50.4 versus 46.1. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

LFM2-24B-A2B has the edge for reasoning in this comparison, averaging 46.6 versus 45.8. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

DeepSeek V3.1 (Reasoning) has the edge for agentic tasks in this comparison, averaging 44.2 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, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

LFM2-24B-A2B has the edge for multimodal and grounded tasks in this comparison, averaging 41.7 versus 41.5. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

DeepSeek V3.1 (Reasoning) has the edge for instruction following in this comparison, averaging 70 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, DeepSeek V3.1 (Reasoning) or LFM2-24B-A2B?

DeepSeek V3.1 (Reasoning) has the edge for multilingual tasks in this comparison, averaging 62.1 versus 61.4. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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