GLM-5 vs LFM2.5-1.2B-Thinking

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

GLM-5 is clearly ahead on the aggregate, 65 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GLM-5's sharpest advantage is in mathematics, where it averages 84.8 against 42.3. The single biggest benchmark swing on the page is HumanEval, 80 to 17.

LFM2.5-1.2B-Thinking is the reasoning model in the pair, while GLM-5 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. GLM-5 gives you the larger context window at 200K, compared with 32K for LFM2.5-1.2B-Thinking.

Quick Verdict

Pick GLM-5 if you want the stronger benchmark profile. LFM2.5-1.2B-Thinking only becomes the better choice if you want the stronger reasoning-first profile.

Agentic

GLM-5

GLM-5

62.3

LFM2.5-1.2B-Thinking

34.1

63
Terminal-Bench 2.0
34
67
BrowseComp
37
58
OSWorld-Verified
32

Coding

GLM-5

GLM-5

41.1

LFM2.5-1.2B-Thinking

8.2

80
HumanEval
17
46
SWE-bench Verified
10
35
LiveCodeBench
9
46
SWE-bench Pro
7

Multimodal & Grounded

GLM-5

GLM-5

69.2

LFM2.5-1.2B-Thinking

32.4

66
MMMU-Pro
27
73
OfficeQA Pro
39

Reasoning

GLM-5

GLM-5

79.4

LFM2.5-1.2B-Thinking

38.4

84
SimpleQA
29
82
MuSR
31
83
BBH
67
77
LongBench v2
39
73
MRCRv2
42

Knowledge

GLM-5

GLM-5

62.1

LFM2.5-1.2B-Thinking

27

88
MMLU
27
86
GPQA
26
84
SuperGPQA
24
82
OpenBookQA
22
74
MMLU-Pro
51
13
HLE
2
74
FrontierScience
31

Instruction Following

GLM-5

GLM-5

85

LFM2.5-1.2B-Thinking

72

85
IFEval
72

Multilingual

GLM-5

GLM-5

82.1

LFM2.5-1.2B-Thinking

60.7

84
MGSM
62
81
MMLU-ProX
60

Mathematics

GLM-5

GLM-5

84.8

LFM2.5-1.2B-Thinking

42.3

88
AIME 2023
28
90
AIME 2024
30
89
AIME 2025
29
84
HMMT Feb 2023
24
86
HMMT Feb 2024
26
85
HMMT Feb 2025
25
87
BRUMO 2025
27
82
MATH-500
61

Frequently Asked Questions

Which is better, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 is ahead overall, 65 to 33. The biggest single separator in this matchup is HumanEval, where the scores are 80 and 17.

Which is better for knowledge tasks, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for knowledge tasks in this comparison, averaging 62.1 versus 27. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for coding in this comparison, averaging 41.1 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for math in this comparison, averaging 84.8 versus 42.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for reasoning in this comparison, averaging 79.4 versus 38.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for agentic tasks in this comparison, averaging 62.3 versus 34.1. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for multimodal and grounded tasks in this comparison, averaging 69.2 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for instruction following in this comparison, averaging 85 versus 72. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GLM-5 or LFM2.5-1.2B-Thinking?

GLM-5 has the edge for multilingual tasks in this comparison, averaging 82.1 versus 60.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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