Claude Haiku 4.5 vs LFM2-24B-A2B

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

Claude Haiku 4.5 is clearly ahead on the aggregate, 62 to 38. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude Haiku 4.5's sharpest advantage is in multimodal & grounded, where it averages 78.4 against 41.7. The single biggest benchmark swing on the page is MMMU-Pro, 82 to 39.

Claude Haiku 4.5 is also the more expensive model on tokens at $0.80 input / $4.00 output per 1M tokens, versus $0.03 input / $0.12 output per 1M tokens for LFM2-24B-A2B. That is roughly 33.3x on output cost alone. Claude Haiku 4.5 gives you the larger context window at 200K, compared with 32K for LFM2-24B-A2B.

Quick Verdict

Pick Claude Haiku 4.5 if you want the stronger benchmark profile. LFM2-24B-A2B only becomes the better choice if you want the cheaper token bill.

Agentic

Claude Haiku 4.5

Claude Haiku 4.5

56.7

LFM2-24B-A2B

33.4

53
Terminal-Bench 2.0
30
62
BrowseComp
38
57
OSWorld-Verified
34

Coding

Claude Haiku 4.5

Claude Haiku 4.5

41.7

LFM2-24B-A2B

18

60
HumanEval
42
48
SWE-bench Verified
18
36
LiveCodeBench
17
46
SWE-bench Pro
19

Multimodal & Grounded

Claude Haiku 4.5

Claude Haiku 4.5

78.4

LFM2-24B-A2B

41.7

82
MMMU-Pro
39
74
OfficeQA Pro
45

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

68.9

LFM2-24B-A2B

46.6

65
SimpleQA
44
63
MuSR
42
81
BBH
63
72
LongBench v2
48
70
MRCRv2
45

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

53.6

LFM2-24B-A2B

35.6

68
MMLU
46
67
GPQA
45
65
SuperGPQA
43
63
OpenBookQA
41
73
MMLU-Pro
51
11
HLE
4
64
FrontierScience
43

Instruction Following

Claude Haiku 4.5

Claude Haiku 4.5

86

LFM2-24B-A2B

68

86
IFEval
68

Multilingual

Claude Haiku 4.5

Claude Haiku 4.5

80.1

LFM2-24B-A2B

61.4

82
MGSM
64
79
MMLU-ProX
60

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

73.3

LFM2-24B-A2B

50.4

68
AIME 2023
46
70
AIME 2024
48
69
AIME 2025
47
64
HMMT Feb 2023
42
66
HMMT Feb 2024
44
65
HMMT Feb 2025
43
67
BRUMO 2025
45
81
MATH-500
57

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 is ahead overall, 62 to 38. The biggest single separator in this matchup is MMMU-Pro, where the scores are 82 and 39.

Which is better for knowledge tasks, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for knowledge tasks in this comparison, averaging 53.6 versus 35.6. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for coding in this comparison, averaging 41.7 versus 18. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for math in this comparison, averaging 73.3 versus 50.4. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for reasoning in this comparison, averaging 68.9 versus 46.6. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for agentic tasks in this comparison, averaging 56.7 versus 33.4. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for multimodal and grounded tasks in this comparison, averaging 78.4 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 Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for instruction following in this comparison, averaging 86 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude Haiku 4.5 or LFM2-24B-A2B?

Claude Haiku 4.5 has the edge for multilingual tasks in this comparison, averaging 80.1 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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