Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Claude 4.1 Opus is clearly ahead on the aggregate, 64 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude 4.1 Opus's sharpest advantage is in multimodal & grounded, where it averages 80.7 against 32.4. The single biggest benchmark swing on the page is MMMU-Pro, 82 to 27.
LFM2.5-1.2B-Thinking is the reasoning model in the pair, while Claude 4.1 Opus 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. Claude 4.1 Opus gives you the larger context window at 200K, compared with 32K for LFM2.5-1.2B-Thinking.
Pick Claude 4.1 Opus 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.
Claude 4.1 Opus
58.7
LFM2.5-1.2B-Thinking
34.1
Claude 4.1 Opus
44
LFM2.5-1.2B-Thinking
8.2
Claude 4.1 Opus
80.7
LFM2.5-1.2B-Thinking
32.4
Claude 4.1 Opus
72.9
LFM2.5-1.2B-Thinking
38.4
Claude 4.1 Opus
57.6
LFM2.5-1.2B-Thinking
27
Claude 4.1 Opus
83
LFM2.5-1.2B-Thinking
72
Claude 4.1 Opus
81.8
LFM2.5-1.2B-Thinking
60.7
Claude 4.1 Opus
77.7
LFM2.5-1.2B-Thinking
42.3
Claude 4.1 Opus is ahead overall, 64 to 33. The biggest single separator in this matchup is MMMU-Pro, where the scores are 82 and 27.
Claude 4.1 Opus has the edge for knowledge tasks in this comparison, averaging 57.6 versus 27. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for coding in this comparison, averaging 44 versus 8.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for math in this comparison, averaging 77.7 versus 42.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for reasoning in this comparison, averaging 72.9 versus 38.4. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for agentic tasks in this comparison, averaging 58.7 versus 34.1. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for multimodal and grounded tasks in this comparison, averaging 80.7 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for instruction following in this comparison, averaging 83 versus 72. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Claude 4.1 Opus has the edge for multilingual tasks in this comparison, averaging 81.8 versus 60.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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