content-based Every title is tagged with genres. We build a profile from the genres of what you liked (and quietly subtract what you passed on), then find unseen titles whose genre mix is closest to that profile.

collaborative A panel of 30 sample viewers has its own ratings across this same catalog. We find the ones whose taste overlaps yours, then surface what they rated highly that you haven't seen.

Hybrid blends the two. The slider sets the weight: full left is pure content-based, full right is pure collaborative.