
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. Teletyped records 0 monthly visits with -100% growth and Freemium, Free pricing.

A better chat interface for ChatGPT and Claude, plus AI consulting and product development.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chatpdf.com | teletyped.com |
| Pricing Model | Freemium | Freemium, Free |
| Monthly Visits | 1.04M (1,044,477) | 0 (0) |
| MoM Traffic Delta | -40.47K (-3.7%) | -31 (-100%) |
| Primary Market & Share | 🇺🇸 United States (9.6%) | 🌐 Global (—) |
| Direct Visits / mo | 457.79K | 0 |
| User Rating | 4.2 | 4 |
| Supported Platforms | Website | Website |
Chat with any PDF, video, or website and get cited answers in seconds
Every response is anchored to your source document with clickable citations that scroll to the exact passage, so verification takes seconds instead of page-by-page searching.
Organize documents into folders and query many files in a single conversation to compare arguments, cross-reference findings, or study a whole syllabus at once.
Condense long papers, reports, and contracts into key takeaways, and translate or query documents in any language — including mixing a source language with a different question language.
Generate flashcards and slide decks from your material, and use the built-in AI writer and AI detector for drafting and checking academic text.

A better chat interface for ChatGPT and Claude, plus AI consulting and product development.
Chat with popular models including ChatGPT and Claude from a single, streamlined interface rather than juggling multiple tabs.
Search across your chat history to find past prompts and answers instead of scrolling endlessly.
Refine or correct a model's reply in place so the conversation stays coherent and on track.
Adjust which model you use and personalize the interface with different themes to suit your workflow.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

Moonshot AI's long-context assistant for research, coding, and agentic work
Free / Open-sourceCompletely free PDF reading and editing tool with AI assistant, though basic compared to dedicated platforms.

Chat with 30+ leading AI models in one clean, fast workspace
Chat with 30+ leading AI models in one clean, fast workspace

Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device

Combines full desktop PDF editing software with AI chat, but requires software installation for full features.

Free / Open-sourceSelf-hosted AI workspace for local and cloud models
Free / Open-sourceSelf-hosted AI workspace for local and cloud models
Chat with Japan's frontier models, one interface
Includes robust developer APIs for custom document workflows, but free tier limits document page counts.

One subscription, every top AI model, one fast chat window.
One subscription, every top AI model, one fast chat window.

Free multi-model AI assistant for chat, writing, images and PDFs
Free multi-model AI assistant for chat, writing, images and PDFs