Detailed comparison across 10 dimensions
Winner: ChatPDF
ChatPDF clearly comes out ahead of Merlin AI on Staquest's weighted six-dimension score. Both offer a free tier. Paid plans start at $15/mo for Merlin AI and $19.99/mo for ChatPDF.
| Overview | ||
|---|---|---|
| Type | ai tool | ai tool |
| Company | Merlin | ChatPDF |
| Free Tier | ||
| Has API | ||
| Open Source | ||
| Trending | Stable | Stable |
| Industries | DevelopmentMarketingAI & Machine Learning | DevelopmentMarketing |
| Categories | ai-productivityai-chatbot | ai-researchai-chatbot |
| Website | Visit | Visit |
ChatPDF
freemium
per user
per seat
per user
freemium
| Feature | merlin-ai | chatpdf |
|---|---|---|
| Advanced Image Generation | ||
| 10 Mb File Size Limit | ||
| Basic Ai Model Access | ||
| 120 Pages Per Pdf | ||
| Central Usage Dashboard | ||
| 2 Pdfs Per Day | ||
| Chrome Extension Access | ||
| 2,000 Pages Per Pdf | ||
| Everything In Pro | ||
| 32 Mb File Size Limit | ||
| Increased Allowance For Premium Models | ||
| 50 Questions Per Day | ||
| Limited Daily Queries | ||
| Multi-Document Folders | ||
| Security Compliance (Soc2, Gdpr, Iso 27001) | ||
| Unlimited Pdfs | ||
| Team Management Tools | ||
| Unlimited Questions | ||
| Unlimited Fair Access To Basic Models | ||
| Youtube And Webpage Summarization |
Showing 20 of 20 features
Dashes mean the feature isn't listed in our data. The tool may still support it.
On Staquest's weighted six-dimension scoring, ChatPDF comes out ahead overall, though Merlin AI can be the better fit depending on your priorities — see the dimension-by-dimension breakdown above.
Merlin AI's paid plans start at $15/mo and ChatPDF's start at $19.99/mo, so Merlin AI is the lower entry price. Check the pricing comparison for higher tiers and per-seat costs.
Both Merlin AI and ChatPDF offer a free tier.
Merlin AI scores higher on pricing value in Staquest's analysis. It is the highest-weighted dimension in this comparison.
ChatPDF exposes a public API. The feature comparison and dimension scores above cover the full breakdown.
