Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Qwen3.5 397B (Reasoning) is clearly ahead on the aggregate, 75 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Qwen3.5 397B (Reasoning)'s sharpest advantage is in coding, where it averages 62.3 against 8.2. The single biggest benchmark swing on the page is HumanEval, 83 to 17.
Qwen3.5 397B (Reasoning) gives you the larger context window at 128K, compared with 32K for LFM2.5-1.2B-Thinking.
Pick Qwen3.5 397B (Reasoning) if you want the stronger benchmark profile. LFM2.5-1.2B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Qwen3.5 397B (Reasoning)
74.8
LFM2.5-1.2B-Thinking
34.1
Qwen3.5 397B (Reasoning)
62.3
LFM2.5-1.2B-Thinking
8.2
Qwen3.5 397B (Reasoning)
70.8
LFM2.5-1.2B-Thinking
32.4
Qwen3.5 397B (Reasoning)
84.2
LFM2.5-1.2B-Thinking
38.4
Qwen3.5 397B (Reasoning)
70.1
LFM2.5-1.2B-Thinking
27
Qwen3.5 397B (Reasoning)
89
LFM2.5-1.2B-Thinking
72
Qwen3.5 397B (Reasoning)
87.8
LFM2.5-1.2B-Thinking
60.7
Qwen3.5 397B (Reasoning)
92.5
LFM2.5-1.2B-Thinking
42.3
Qwen3.5 397B (Reasoning) is ahead overall, 75 to 33. The biggest single separator in this matchup is HumanEval, where the scores are 83 and 17.
Qwen3.5 397B (Reasoning) has the edge for knowledge tasks in this comparison, averaging 70.1 versus 27. Inside this category, MMLU is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for coding in this comparison, averaging 62.3 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for math in this comparison, averaging 92.5 versus 42.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for reasoning in this comparison, averaging 84.2 versus 38.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for agentic tasks in this comparison, averaging 74.8 versus 34.1. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for multimodal and grounded tasks in this comparison, averaging 70.8 versus 32.4. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for instruction following in this comparison, averaging 89 versus 72. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Qwen3.5 397B (Reasoning) has the edge for multilingual tasks in this comparison, averaging 87.8 versus 60.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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