Tools & Apps ยท Product-specific terminology
Perplexity
Perplexity is an AI research and answer product whose search-oriented responses can synthesize web information with source links. Citations help a reader inspect evidence, but a linked page does not automatically support every nearby claim. Research quality still depends on source authority, dates, scope and whether the actual cited material says what the answer attributes to it.
Reviewed
Sources
Free complete lesson
This definition and the complete practical lesson are free. The interactive reader loads the lesson examples without a membership.