Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
LFM2.5-350M
~39
0/8 categorieso3-pro
67
Winner · 2/8 categoriesLFM2.5-350M· o3-pro
Pick o3-pro if you want the stronger benchmark profile. LFM2.5-350M only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
o3-pro is clearly ahead on the aggregate, 67 to 39. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o3-pro's sharpest advantage is in knowledge, where it averages 66.8 against 23.8. The single biggest benchmark swing on the page is GPQA, 30.6% to 89%.
o3-pro is the reasoning model in the pair, while LFM2.5-350M 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. o3-pro gives you the larger context window at 200K, compared with 32K for LFM2.5-350M.
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 | LFM2.5-350M | o3-pro |
|---|---|---|
| Agentic | ||
| Terminal-Bench 2.0 | — | 69% |
| BrowseComp | — | 76% |
| OSWorld-Verified | — | 68% |
| Coding | ||
| HumanEval | — | 80% |
| LiveCodeBench | — | 44% |
| SWE-bench Pro | — | 55% |
| Multimodal & Grounded | ||
| MMMU-Pro | — | 70% |
| OfficeQA Pro | — | 79% |
| Reasoning | ||
| MuSR | — | 84% |
| BBH | — | 89% |
| LongBench v2 | — | 81% |
| MRCRv2 | — | 81% |
| Knowledgeo3-pro wins | ||
| GPQA | 30.6% | 89% |
| MMLU-Pro | 20.0% | — |
| MMLU | — | 88% |
| SuperGPQA | — | 87% |
| HLE | — | 26% |
| FrontierScience | — | 77% |
| SimpleQA | — | 86% |
| Instruction Followingo3-pro wins | ||
| IFEval | 77.0% | 82% |
| Multilingual | ||
| MGSM | — | 83% |
| MMLU-ProX | — | 80% |
| Mathematics | ||
| AIME 2023 | — | 90% |
| AIME 2024 | — | 92% |
| AIME 2025 | — | 91% |
| HMMT Feb 2023 | — | 86% |
| HMMT Feb 2024 | — | 88% |
| HMMT Feb 2025 | — | 87% |
| BRUMO 2025 | — | 89% |
| MATH-500 | — | 89% |
o3-pro is ahead overall, 67 to 39. The biggest single separator in this matchup is GPQA, where the scores are 30.6% and 89%.
o3-pro has the edge for knowledge tasks in this comparison, averaging 66.8 versus 23.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.
o3-pro has the edge for instruction following in this comparison, averaging 82 versus 77. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Get notified when new models drop, benchmark scores change, or the leaderboard shifts. One email per week.
Free. No spam. Unsubscribe anytime. We only store derived location metadata for consent routing.