ChatPDF vs Humata

ChatPDF

• Students and researchers who want quick answers from a paper or textbook chapter
• Asking questions across several files kept in one folder
• Trying a document chat tool without creating an account
• Turning course material into flashcards or slides

Humata

• Asking questions across many long PDFs and getting cited answers
• Small teams of up to three people sharing one $9.99 plan
• Companies that want to embed document Q&A on their own website

ChatPDF

• The website shows Plus prices only in an upgrade dialog and sets them per visitor; the prices here are US App Store in-app purchases, and web checkout may differ.
• The free plan covers 2 documents a day, and the site's limits cap free use at 20 messages a day and files of 120 pages or 10 MB.
• AI Research summaries are built from abstracts, and chatting with a full paper works only for open-access papers.
• The best model is reserved for Plus; ChatPDF says it routes queries between GPT-4o and GPT-4o-mini.

Humata

• The Free plan is limited to 1 user and 60 pages a month, and the homepage also caps it at 10 answers.
• Pages beyond a plan's monthly allowance are billed per page: $0.02 on Expert and $0.01 on Team.
• OCR for scanned text, department and folder permissions and response personalization need the Team plan.
• The billing FAQ mentions a Student plan, but the pricing page does not list it or show a price.

ChatPDF

Chat with documents

Ask questions about a PDF, Word, PowerPoint, Markdown or text file with the chat and the document side by side. Clickable citations scroll to the passage an answer came from.

Multi-file folders

Put files in a folder to ask questions across all of them in one conversation. Folders and saved chat history need a free account.

AI Research

Ask a question to find academic papers and get a summary with citations, built from the papers' abstracts. Filters narrow results to recent or influential work.

YouTube and website chat

Paste a YouTube or website link to ask questions about it. Video answers include clickable timestamps and an interactive transcript.

Flashcards, slides and writing

Makes flashcards that export to Anki, Quizlet, Brainscape or CSV, and slides that export to PowerPoint. The AI Writer drafts text with citations and exports to Word or Markdown.

Developer API

A backend API adds PDFs by URL or file upload and answers questions about them, with optional page references. API files are limited to 2,000 pages or 32 MB.

Humata

Chat with your files

Upload files or whole folders and ask questions about them. Each answer cites the relevant sections of the source documents, with highlighted links back into the file.

Ask All across files

Tick several files or a folder and use Ask All to put one question to all of them at once, for example to compare documents.

Website import

The From URL option in the upload dialog imports a website so that questions can be asked about its pages.

Answer modes and custom prompts

Grounded, Balanced and Creative modes set how closely answers stick to the documents, and a custom prompt can be sent along with every question.

Team roles and permissions

Admins invite members, assign admin or member roles, group people into teams and restrict access to folders. Department and folder permissions start at the Team plan.

Embeds and API

A chat view for a file or folder can be embedded in a web page, with white labeling on Enterprise. An API covers document import, conversations and questions.

ChatPDF

• Free$0

  2 documents and 20 messages a day, with files of up to 120 pages or 10 MB and folders of up to 5 files.

• Plus$14.99

  per month on the US App Store; $89.99 for the yearly plan

  Unlimited questions and documents, files of up to 2,000 pages or 150 MB, 50 PDFs per folder and the higher-quality model.

Humata

• Free$0

  1 user and 60 free pages a month, with basic features and up to 10 answers.

• Expert$9.99

  per month, billed monthly

  Up to 3 users and 500 free pages a month, then $0.02 per additional page, with chat support.

• Team$49

  per user / month, billed monthly

  For teams of up to 10: 5,000 free pages a month, then $0.01 per page, plus department and folder permissions, OCR and response personalization.

• EnterpriseCustom

  Unlimited users and custom page allowances, with a SOC-2 certificate, uptime SLA and early access to new features.

ChatPDF

• Annual discount

  About 50% off with the yearly plan

  On the US App Store the yearly Plus plan is $89.99 against $14.99 a month. That works out to about $7.50 a month, half the monthly rate.

Humata

No public discounts listed.