Udio v1.5 is an upgraded version of a music creation platform with multiple enhancements over version 1, including improved audio quality, pitch control, and better global language support. It generates 48kHz stereo tracks, offering clearer sound quality and better instrument separation. Additionally, Udio v1.5 features a range of new capabilities such as a dedicated creation page, track downloads, audio-to-audio mixing, and shareable lyric videos, all aimed at empowering music creators further.