Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
1-bit Bonsai 4B
~44
Winner · 1/8 categoriesLFM2.5-350M
~39
1/8 categories1-bit Bonsai 4B· LFM2.5-350M
Pick 1-bit Bonsai 4B if you want the stronger benchmark profile. LFM2.5-350M only becomes the better choice if instruction following is the priority.
1-bit Bonsai 4B is clearly ahead on the aggregate, 44 to 39. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
1-bit Bonsai 4B's sharpest advantage is in knowledge, where it averages 28.7 against 23.8. The single biggest benchmark swing on the page is IFEval, 69.6% to 77.0%. LFM2.5-350M does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.
BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.
Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.
| Benchmark | 1-bit Bonsai 4B | LFM2.5-350M |
|---|---|---|
| Agentic | ||
| Coming soon | ||
| Coding | ||
| Coming soon | ||
| Multimodal & Grounded | ||
| Coming soon | ||
| Reasoning | ||
| MuSR | 41.4% | — |
| Knowledge1-bit Bonsai 4B wins | ||
| GPQA | 28.7% | 30.6% |
| MMLU-Pro | — | 20.0% |
| Instruction FollowingLFM2.5-350M wins | ||
| IFEval | 69.6% | 77.0% |
| Multilingual | ||
| Coming soon | ||
| Mathematics | ||
| MATH-500 | 65.8% | — |
1-bit Bonsai 4B is ahead overall, 44 to 39. The biggest single separator in this matchup is IFEval, where the scores are 69.6% and 77.0%.
1-bit Bonsai 4B has the edge for knowledge tasks in this comparison, averaging 28.7 versus 23.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.
LFM2.5-350M has the edge for instruction following in this comparison, averaging 77 versus 69.6. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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