Claude 3.5 Sonnet vs LFM2-24B-A2B

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

Claude 3.5 Sonnet is clearly ahead on the aggregate, 60 to 38. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude 3.5 Sonnet's sharpest advantage is in multimodal & grounded, where it averages 74.8 against 41.7. The single biggest benchmark swing on the page is MMMU-Pro, 77 to 39.

Claude 3.5 Sonnet gives you the larger context window at 200K, compared with 32K for LFM2-24B-A2B.

Quick Verdict

Pick Claude 3.5 Sonnet if you want the stronger benchmark profile. LFM2-24B-A2B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

Claude 3.5 Sonnet

Claude 3.5 Sonnet

55

LFM2-24B-A2B

33.4

54
Terminal-Bench 2.0
30
62
BrowseComp
38
51
OSWorld-Verified
34

Coding

Claude 3.5 Sonnet

Claude 3.5 Sonnet

37.8

LFM2-24B-A2B

18

57
HumanEval
42
36
SWE-bench Verified
18
39
LiveCodeBench
17
37
SWE-bench Pro
19

Multimodal & Grounded

Claude 3.5 Sonnet

Claude 3.5 Sonnet

74.8

LFM2-24B-A2B

41.7

77
MMMU-Pro
39
72
OfficeQA Pro
45

Reasoning

Claude 3.5 Sonnet

Claude 3.5 Sonnet

67.7

LFM2-24B-A2B

46.6

63
SimpleQA
44
61
MuSR
42
83
BBH
63
70
LongBench v2
48
70
MRCRv2
45

Knowledge

Claude 3.5 Sonnet

Claude 3.5 Sonnet

50.8

LFM2-24B-A2B

35.6

65
MMLU
46
65
GPQA
45
63
SuperGPQA
43
61
OpenBookQA
41
74
MMLU-Pro
51
5
HLE
4
59
FrontierScience
43

Instruction Following

Claude 3.5 Sonnet

Claude 3.5 Sonnet

83

LFM2-24B-A2B

68

83
IFEval
68

Multilingual

Claude 3.5 Sonnet

Claude 3.5 Sonnet

80.5

LFM2-24B-A2B

61.4

85
MGSM
64
78
MMLU-ProX
60

Mathematics

Claude 3.5 Sonnet

Claude 3.5 Sonnet

71.2

LFM2-24B-A2B

50.4

65
AIME 2023
46
67
AIME 2024
48
66
AIME 2025
47
61
HMMT Feb 2023
42
63
HMMT Feb 2024
44
62
HMMT Feb 2025
43
64
BRUMO 2025
45
80
MATH-500
57

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet is ahead overall, 60 to 38. The biggest single separator in this matchup is MMMU-Pro, where the scores are 77 and 39.

Which is better for knowledge tasks, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for knowledge tasks in this comparison, averaging 50.8 versus 35.6. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.

Which is better for coding, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for coding in this comparison, averaging 37.8 versus 18. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for math, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for math in this comparison, averaging 71.2 versus 50.4. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for reasoning in this comparison, averaging 67.7 versus 46.6. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for agentic tasks in this comparison, averaging 55 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, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for multimodal and grounded tasks in this comparison, averaging 74.8 versus 41.7. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for instruction following in this comparison, averaging 83 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude 3.5 Sonnet or LFM2-24B-A2B?

Claude 3.5 Sonnet has the edge for multilingual tasks in this comparison, averaging 80.5 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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