P4 may refer to:
==Computing== Intel Pentium 4, a processor series shipped from 2000 to 2008 The P4 power connector, introduced in the ATX12V 1.0 standard to power these and later CPUs The i486DX (P4) model of the Intel 80486 microprocessor, introduced in 1989 P4 (programming language), for controlling network data forwarding P4, the Perforce software command line client
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).