Perplexity AI

Perplexity AI answers questions in conversational form and shows the sources it drew from, so you can verify claims without separately searching for them. The free tier covers basic searches with a daily limit on more advanced "Pro Search" queries; Perplexity Pro ($20/mo) raises that limit, adds file uploads, and lets you pick which underlying model answers your query. It's strong for fact-checking and current-events questions, though like any AI tool it can occasionally misread nuance in ambiguous or multi-part questions.