Claudio tumbuh di [[Miami]] dan merupakan keturunan [[Kuba]] dan [[Puerto Riko]]. Ia kemudian pindah ke [[Los Angeles]] di mana ia memulai karirnyakariernya dalam bermusik.<ref name="LAT">{{cite news | last=Kennedy| first=Gerrick D.| title =What to listen to now: Sabrina Claudio, Little Dragon, Charlie Puth and Brad Paisley | newspaper =Los Angeles Times| location = | pages = | language = | publisher = | date =26 April 2017 | url =http://www.latimes.com/entertainment/music/la-et-ms-what-listen-now-20170426-story.html| accessdate =14 Agustus 2017}}</ref><ref name="MA">{{cite news| last =Nixon| first =Khari| title =PREMIERE: Sabrina Claudio’s Keeping Secrets In Her "Tell Me" / "Too Much Too Late" Music Video| newspaper =| location =| pages =| language =| publisher =Mass Appeal| date =3 Maret 2017| url =https://massappeal.com/sabrina-claudio-tell-me-too-much-too-late-music-video/| accessdate =14 Agustus 2017| archive-url =https://web.archive.org/web/20171006113106/https://massappeal.com/sabrina-claudio-tell-me-too-much-too-late-music-video/| archive-date =6 Oktober 2017| dead-url =yes| df =mdy-all}}</ref> Ia awalnya merekam video cover lagu di [[Twitter]] dan [[YouTube]], sebelum berpindah menulis dan merekam lagu milik sendiri di [[SoundCloud]].<ref name="MA"/>
