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Connected Papers vs PDF GPT
A factual side-by-side comparison of Connected Papers and PDF GPT. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
Both Connected Papers and PDF GPT are Freemium. Pick the one whose tagline and categories match your use case, then check the alternatives below.
| Pricing | Freemium | Freemium |
|---|---|---|
| Categories | Research | Research / Document AI / AI Search |
| Best for | Visual graphs of paper relationships | PDF GPT: AI Research powered by AI |
| Free tier | Yes — free or freemium | Yes — free or freemium |
| Website | www.connectedpapers.com | pdfgpt.io |