Supercharge your reading with
AI Reasoning Power
A professional AI reading assistant that helps you understand complex documents and build deep knowledge graphs instantly.
Select & Ask
Highlight any text in the PDF to instantly ask questions about it. The AI automatically uses your selection as context, making it effortless to understand complex passages without manually copying and pasting.
Precise Citations
Every AI claim links back to the exact sentence in your PDF. Click a citation and the viewer instantly scrolls to the source passage, highlighted in context — so you never have to take the model's word for it.
Web Search Augmentation
Toggle web search and the AI can query three independent engines — Brave, Exa (semantic), and Google via SerpAPI — then fetch full page content to ground its answers in real-time information beyond the PDF.
Highlight & Notes
Highlight key points directly within your document and jot down thoughts in the margins. Enjoy a personalized reading experience with built-in handwritten font support for an authentic note-taking feel.
Dynamic Knowledge Graph
Map the concepts, entities, and relationships across your documents onto a fully interactive canvas. Drag nodes, draw edges, switch between shapes — rectangles, ellipses, diamonds, hexagons — and double-click any node to jump straight into the source PDF.
Top Model Engines
Switch between Gemini, GPT, Claude, Grok, Kimi, and GLM with one click. Enable Thinking Mode to surface the model's chain-of-thought reasoning, and pick the right engine for every task — from fast summarisation to deep multi-step analysis.
Pricing
Start for free, upgrade when you need more power and tokens.
- Partial model access
- Limited credits
- Create up to 1 knowledge graph
- Basic web search
- Access to ALL models
- Standard monthly credits
- Unlimited knowledge graphs
- Advanced semantic web search
- 3x model usage volume
- Highest priority generation
- Unlimited knowledge graphs
- Premium support
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