Built for the way you actually read
Understand a paper, don’t just skim it
Ask a question and the assistant answers on the page, jumping to the passage and highlighting the exact lines it means. You follow the reasoning and check the source yourself, instead of trusting a summary that floats free of the text.
Find anything across your library
Search every paper you’ve read at once, by meaning or by exact wording, and jump straight to the hit. Each paper you open makes the next search sharper, so a library you’ve built over months stays instantly recallable.
Citations and references that do the work
Hover a citation to preview where it points without losing your place. Grab a clean reference for your manager, or open the cited paper itself in a click, so chasing a reference chain takes seconds instead of a dozen browser tabs.
A reading environment built for focus
A fast, native, keyboard-first reader made for long documents. Open papers side by side, move through them without reaching for the mouse, and keep equations, tables, and figures readable. Nothing between you and the page.
Why not just paste papers into a chatbot?
A chatbot will happily summarize a paper it can’t point to, and when the details matter, a confident summary you can’t verify is worse than none. Plum keeps you anchored to the source: the assistant highlights the exact lines it’s drawing from, so every answer is one you can check at a glance. It also works across your whole library, not just the single file you remembered to paste in.
Plum also runs on the AI you already use. Connect a tool like Claude or bring your own key, so your reading isn’t locked to one provider, and the paper stays the thing you’re working in, not an attachment to a chat window.