GPT-5 mini vs LFM2-24B-A2B

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

GPT-5 mini is clearly ahead on the aggregate, 69 to 38. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5 mini's sharpest advantage is in multimodal & grounded, where it averages 83.8 against 41.7. The single biggest benchmark swing on the page is MMMU-Pro, 86 to 39.

GPT-5 mini 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. GPT-5 mini gives you the larger context window at 128K, compared with 32K for LFM2-24B-A2B.

Quick Verdict

Pick GPT-5 mini 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

GPT-5 mini

GPT-5 mini

65.7

LFM2-24B-A2B

33.4

68
Terminal-Bench 2.0
30
70
BrowseComp
38
60
OSWorld-Verified
34

Coding

GPT-5 mini

GPT-5 mini

42.8

LFM2-24B-A2B

18

80
HumanEval
42
41
SWE-bench Verified
18
37
LiveCodeBench
17
49
SWE-bench Pro
19

Multimodal & Grounded

GPT-5 mini

GPT-5 mini

83.8

LFM2-24B-A2B

41.7

86
MMMU-Pro
39
81
OfficeQA Pro
45

Reasoning

GPT-5 mini

GPT-5 mini

81.8

LFM2-24B-A2B

46.6

84
SimpleQA
44
82
MuSR
42
87
BBH
63
80
LongBench v2
48
79
MRCRv2
45

Knowledge

GPT-5 mini

GPT-5 mini

62.8

LFM2-24B-A2B

35.6

88
MMLU
46
86
GPQA
45
84
SuperGPQA
43
82
OpenBookQA
41
73
MMLU-Pro
51
16
HLE
4
75
FrontierScience
43

Instruction Following

GPT-5 mini

GPT-5 mini

82

LFM2-24B-A2B

68

82
IFEval
68

Multilingual

GPT-5 mini

GPT-5 mini

80.1

LFM2-24B-A2B

61.4

82
MGSM
64
79
MMLU-ProX
60

Mathematics

GPT-5 mini

GPT-5 mini

87.2

LFM2-24B-A2B

50.4

90
AIME 2023
46
92
AIME 2024
48
91
AIME 2025
47
86
HMMT Feb 2023
42
88
HMMT Feb 2024
44
87
HMMT Feb 2025
43
89
BRUMO 2025
45
85
MATH-500
57

Frequently Asked Questions

Which is better, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini is ahead overall, 69 to 38. The biggest single separator in this matchup is MMMU-Pro, where the scores are 86 and 39.

Which is better for knowledge tasks, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for knowledge tasks in this comparison, averaging 62.8 versus 35.6. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for coding in this comparison, averaging 42.8 versus 18. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for math in this comparison, averaging 87.2 versus 50.4. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for reasoning in this comparison, averaging 81.8 versus 46.6. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for agentic tasks in this comparison, averaging 65.7 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, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for multimodal and grounded tasks in this comparison, averaging 83.8 versus 41.7. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini has the edge for instruction following in this comparison, averaging 82 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5 mini or LFM2-24B-A2B?

GPT-5 mini 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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