Skip to content
effecthub

AI ChatDocs vs ChatPDF

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Free plan
Both have one
Public API
Both have one
Higher Trust score
ChatPDF — 88 vs 71 for AI ChatDocs
Best fit
AI ChatDocs: Anyone who needs quick answers from a batch of PDFs instead of reading them fully · ChatPDF: students and researchers pulling verifiable quotes out of long papers
Platforms
AI ChatDocs: Web · ChatPDF: Web, macOS, Windows

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

AI ChatDocsChat with PDFs, Word files, websites, and YouTube videos, then get sourced answers instead of skimming.ChatPDFAsk questions about PDFs, documents and videos

Side by side

FactAI ChatDocsChatPDF
CategoryChat with Documents & PDFPDF Tools
Pricing modelFreemiumFreemium
Starts at$9.99/mo—
Public APIYesYes
Trust score71 / 10088 / 100
PlatformsWeb, APIWeb, macOS, Windows, API
Company—ChatPDF GmbH
Launched—2023
Last verifiedOct 15, 2026Oct 22, 2026

What our research says

AI ChatDocs

AI ChatDocs works if your main need is asking questions across a handful of PDFs or a website instead of reading them end to end. The page and message caps per plan mean heavy users of long documents will hit the ceiling faster than the price alone suggests.

Pros

  • Handles more than PDFs: websites, sitemaps, and YouTube videos as sources too
  • Free tier to test before paying
  • API and custom plans offered on request for integrations
  • Message and page limits are stated clearly per plan

Cons

  • No company name or location disclosed anywhere on the site
  • Listed prices are shown as discounted from a higher list price, so confirm the actual renewal cost
  • Per-workspace caps of 500,000 to 10 million characters limit how much you can load per plan

ChatPDF

The quickest way to interrogate one long PDF without building retrieval yourself, and the page-level citations are what keep it honest. But ChatGPT and Claude now read PDFs natively, so ChatPDF only earns its subscription if you need those citations, the multi-file view, or the API.

Pros

  • answers cite specific pages, so you can check them instead of trusting them
  • handles Word, PowerPoint, Markdown and text files, not only PDF
  • REST API supports streaming and multi-turn conversations
  • free tier works with no account and no card

Cons

  • two documents a day on free runs out fast during real research
  • Plus pricing is not published anywhere on the site
  • no team plan, SSO or shared document library
  • hard per-file limit of 2,000 pages or 32 MB

Which one fits

Choose AI ChatDocs if you need

  • Anyone who needs quick answers from a batch of PDFs instead of reading them fully
  • Users who also want to query a website or a YouTube video's content

Choose ChatPDF if you need

  • students and researchers pulling verifiable quotes out of long papers
  • checking claims inside a contract or report you did not write
  • developers wanting a hosted PDF-Q&A endpoint instead of rolling their own RAG stack

AI ChatDocs vs ChatPDF: the questions people ask

Is AI ChatDocs cheaper than ChatPDF?

AI ChatDocs starts at $9.99/mo. ChatPDF has a free tier; what its paid plans cost is not confirmed by us yet.

Does AI ChatDocs or ChatPDF have a free tier?

Both: AI ChatDocs has a free tier, and ChatPDF has a free tier.

Which has a public API, AI ChatDocs or ChatPDF?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

More comparisons

Browse all Chat with Documents & PDF →