Perplexity

AI search and research assistant that cites its sources.

Supervision needed: Low Shows sources for each answer, so checking is quick. Still read the source for anything important.
Where it tends to fail: Citing a source that does not quite say what the answer claims.
Pricing: Free plan; Pro $17/month billed annually. Pricing page (Checked Oct 2026)
Website: https://www.perplexity.ai

The supervision level and failure notes are our editorial judgment from how these tools are built and used, not test results or ratings. Your setup may differ.