An AI PDF reader for research papers.
Plum is built for people to read papers without outsourcing their thinking.
Built to help you read more
Understand a paper deeper
The AI assistant answers from the PDF itself and shows its evidence on the page. It jumps to the right page and highlights the exact text it relied on. This lets you follow the reasoning and check the source yourself.
Find anything in a paper
Ask the assistant and it finds passages by lexical meaning, then takes you straight to them. LaTeX Equations are searchable too.
Citations and references built-in
Hover a linked citation to preview its reference entry without losing your place. Open a cited paper as a tab right inside Plum and keep following the chain.
A reading environment built for focus
A fast, native, keyboard-first reader made specifically for navigating PDFs. Move through long documents without a mouse, copy any equation as LaTeX in one click, and preview linked figures, tables, and equations.
Why not just paste papers into a chatbot?
A chatbot will happily summarize a paper it can’t point to and give unverifiable answers. Plum keeps you anchored to the source by highlighting the exact text it’s drawing from.