Perplexity
AI answer engine with deep research agents that cite their sources.
Fast research answers with citations, plus agentic deep research on demand.
You need auditable control over sources and retrieval — it is a consumer product.
About Perplexity
Perplexity vs. the alternatives
All research & data agents →| Agent | Stars | Pricing | ||
|---|---|---|---|---|
| Perplexity | — | — | — | Freemium |
| firecrawl | 143k | TypeScript | AGPL-3.0 | Open source |
| Scrapling | 68k | Python | BSD-3-Clause | Open source |
| TrendRadar | 60k | Python | GPL-3.0 | Open source |
| BettaFish | 42k | Python | GPL-2.0 | Open source |
| khoj | 35k | Python | AGPL-3.0 | Open source |
