Prime is the default and handles most images well: portraits, product photos, fashion, food, digital art. It delivers realistic results without the plastic or over-processed look of other tools. Gentle preserves fine details like small text, logos, and precise patterns. Use it when you need enlargement without quality changes, or when detail preservation matters more than enhancement. Old Photo repairs damage, fixes fading, and colorizes vintage images. Run it first on damaged photos, then upscale the result with Prime or Gentle. For specialized needs, tap "More models" to access Ultra (creative transformation), Strong (aggressive clarity boost), and DigiArt (anime and illustrations).