Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Mercury 2 is clearly ahead on the aggregate, 65 to 38. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Mercury 2's sharpest advantage is in reasoning, where it averages 80.1 against 46.6. The single biggest benchmark swing on the page is MuSR, 82 to 42.
Mercury 2 is also the more expensive model on tokens at $0.25 input / $0.75 output per 1M tokens, versus $0.03 input / $0.12 output per 1M tokens for LFM2-24B-A2B. That is roughly 6.3x on output cost alone. Mercury 2 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. Mercury 2 gives you the larger context window at 128K, compared with 32K for LFM2-24B-A2B.
Pick Mercury 2 if you want the stronger benchmark profile. LFM2-24B-A2B only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.
Mercury 2
63.7
LFM2-24B-A2B
33.4
Mercury 2
41.1
LFM2-24B-A2B
18
Mercury 2
68.3
LFM2-24B-A2B
41.7
Mercury 2
80.1
LFM2-24B-A2B
46.6
Mercury 2
57.2
LFM2-24B-A2B
35.6
Mercury 2
84
LFM2-24B-A2B
68
Mercury 2
79.7
LFM2-24B-A2B
61.4
Mercury 2
80.9
LFM2-24B-A2B
50.4
Mercury 2 is ahead overall, 65 to 38. The biggest single separator in this matchup is MuSR, where the scores are 82 and 42.
Mercury 2 has the edge for knowledge tasks in this comparison, averaging 57.2 versus 35.6. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for coding in this comparison, averaging 41.1 versus 18. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for math in this comparison, averaging 80.9 versus 50.4. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for reasoning in this comparison, averaging 80.1 versus 46.6. Inside this category, MuSR is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for agentic tasks in this comparison, averaging 63.7 versus 33.4. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for multimodal and grounded tasks in this comparison, averaging 68.3 versus 41.7. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for instruction following in this comparison, averaging 84 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Mercury 2 has the edge for multilingual tasks in this comparison, averaging 79.7 versus 61.4. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.
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