o1-preview vs LFM2-24B-A2B

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

o1-preview is clearly ahead on the aggregate, 77 to 38. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o1-preview's sharpest advantage is in coding, where it averages 64.6 against 18. The single biggest benchmark swing on the page is SWE-bench Pro, 69 to 19.

o1-preview 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. o1-preview gives you the larger context window at 200K, compared with 32K for LFM2-24B-A2B.

Quick Verdict

Pick o1-preview if you want the stronger benchmark profile. LFM2-24B-A2B only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.

Agentic

o1-preview

o1-preview

75.4

LFM2-24B-A2B

33.4

77
Terminal-Bench 2.0
30
79
BrowseComp
38
71
OSWorld-Verified
34

Coding

o1-preview

o1-preview

64.6

LFM2-24B-A2B

18

86
HumanEval
42
65
SWE-bench Verified
18
60
LiveCodeBench
17
69
SWE-bench Pro
19

Multimodal & Grounded

o1-preview

o1-preview

75.6

LFM2-24B-A2B

41.7

72
MMMU-Pro
39
80
OfficeQA Pro
45

Reasoning

o1-preview

o1-preview

86.8

LFM2-24B-A2B

46.6

88
SimpleQA
44
86
MuSR
42
93
BBH
63
87
LongBench v2
48
83
MRCRv2
45

Knowledge

o1-preview

o1-preview

71.3

LFM2-24B-A2B

35.6

92
MMLU
46
90
GPQA
45
88
SuperGPQA
43
86
OpenBookQA
41
80
MMLU-Pro
51
32
HLE
4
83
FrontierScience
43

Instruction Following

o1-preview

o1-preview

88

LFM2-24B-A2B

68

88
IFEval
68

Multilingual

o1-preview

o1-preview

87.4

LFM2-24B-A2B

61.4

90
MGSM
64
86
MMLU-ProX
60

Mathematics

o1-preview

o1-preview

93.5

LFM2-24B-A2B

50.4

94
AIME 2023
46
96
AIME 2024
48
95
AIME 2025
47
90
HMMT Feb 2023
42
92
HMMT Feb 2024
44
91
HMMT Feb 2025
43
93
BRUMO 2025
45
94
MATH-500
57

Frequently Asked Questions

Which is better, o1-preview or LFM2-24B-A2B?

o1-preview is ahead overall, 77 to 38. The biggest single separator in this matchup is SWE-bench Pro, where the scores are 69 and 19.

Which is better for knowledge tasks, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for knowledge tasks in this comparison, averaging 71.3 versus 35.6. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for coding in this comparison, averaging 64.6 versus 18. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.

Which is better for math, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for math in this comparison, averaging 93.5 versus 50.4. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for reasoning in this comparison, averaging 86.8 versus 46.6. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for agentic tasks in this comparison, averaging 75.4 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, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for multimodal and grounded tasks in this comparison, averaging 75.6 versus 41.7. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for instruction following in this comparison, averaging 88 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, o1-preview or LFM2-24B-A2B?

o1-preview has the edge for multilingual tasks in this comparison, averaging 87.4 versus 61.4. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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