ChatPDF vs ClarifyPDF
Side-by-side comparison · Updated April 2026
| Description | The ChatPDF backend API offers robust capabilities for extracting information from PDF files and crafting custom chatbots based on those PDFs. Users can utilize a free tier that includes 500 messages and 5,000 PDF pages per month, with paid plans available for higher usage. This service allows for manual or API-based PDF uploads, supports chatting with uploaded PDFs via stateless messages, and provides options for including PDF page references and streaming responses. | ClarifyPDF is an innovative tool designed to help users summarize, extract, and interact with information from PDFs in any language. With robust features including support for large files and the ability to chat with multiple files at once, users can efficiently manage their documents without recurring fees. Additionally, the API allows for seamless integration with your systems, providing a flexible and comprehensive solution for document processing needs. |
| Category | Chatbot | File Management |
| Rating | 3.0 (1) | No reviews |
| Pricing | Free | Freemium |
| Starting Price | Free | Free |
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| Tags | PDFcustom chatbotAPImanual uploadstateless messages | summarizeextract informationinteract with informationPDFlarge files |
| Features | ||
| Programmatic PDF information extraction | ||
| Custom chatbot creation from PDFs | ||
| Free tier with 500 messages/month and 5,000 PDF pages/month | ||
| Manual and API-based PDF uploads | ||
| Stateless chat messaging | ||
| PDF page references in responses | ||
| Streaming word-by-word responses | ||
| Simple deletion of PDFs via API | ||
| Multi-language support | ||
| Multiple PDF chats in one conversation | ||
| Supports large files (up to 20MB) | ||
| Shareable unique link for documents | ||
| Ability to chat with multiple files simultaneously | ||
| Pay-as-you-go credit system | ||
| No recurring fees | ||
| Supports all languages | ||
| Secure for non-sensitive content | ||
| Uses GPT-3.5-turbo-16k, with future access to GPT-4 | ||
| No-questions-asked refund policy | ||
| Developer support and clear API documentation | ||
| View ChatPDF | View ClarifyPDF | |