OPF may refer to:
==Science and technology== Gasoline particulate filter (German: Otto particle filter), capturing soot particles from the petrol engine exhaust gases OEB Package Format, an eBook format OpenProject Foundation, the foundation for the open source web-based application OpenProject, registered 2012 in Berlin, Germany Optimal power flow, a technique used to simulate load flow through an AC power system
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).