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Every feature on every plan.
Free
$0/month
No card needed. No time limit.
- 15uploads
- 100sources assessed by the AI Research Assistant
- 50passages explained by AI Search
- Unlimitedexact search, reading, highlights and comments, writing, citations, projects and Publish to Word
Essentials
$9/month
$108 billed annually
Save $24 a year
- 50 a monthuploads
- 1,000 a monthsources assessed by the AI Research Assistant
- 2,000 a monthpassages explained by AI Search
- Unlimitedexact search, reading, highlights and comments, writing, citations, projects and Publish to Word
Unlimited
$17/month
$204 billed annually
Save $48 a year
- Unlimiteduploads
- Unlimitedsources assessed by the AI Research Assistant
- Unlimitedpassages explained by AI Search
- Unlimitedexact search, reading, highlights and comments, writing, citations, projects and Publish to Word
Cancel anytime.
Full Feature List
| Feature | Free | Essentials | Unlimited |
|---|---|---|---|
| Research & discovery | |||
| AI Research AssistantExplain your research in plain language; it does the keyword work across 480M+ papers and returns ranked, relevant papers, with a Search Overview of what the results cover and a note on why each paper was selected. | AI Research Assistant sources: 100 | AI Research Assistant sources: 1,000 a month | AI Research Assistant sources: Unlimited |
| Saved research conversationsFollow up or follow a tangent and the Research Assistant keeps the thread. Every conversation is saved in the project, so you can pick it up where you left off. | Included | Included | Included |
| Retraction warnings on resultsA paper that has been retracted, is under an expression of concern, or cites retracted work is flagged on the result itself, before you spend time reading it. | Included | Included | Included |
| Institutional and organizational access checkingShows what your institution or organization unlocks and links straight to the full-text PDF, or the abstract where the full text isn't available. | Included | Included | Included |
| Open-access linksWhere a free full text exists, including the author's accepted manuscript, the result links straight to it. | Included | Included | Included |
| Browse This IssueJump from a paper to the rest of its journal issue, where your institution supports it. | Included | Included | Included |
| Sources | |||
| Multi-format uploadPDF, Word, EPUB, TXT, Markdown and HTML, each opening in the Reader ready to annotate and cite. | Uploads: 15 | Uploads: 50 a month | Uploads: Unlimited |
| Batch uploadUp to 200 files at once, processing while you keep working. | Included | Included | Included |
| Add a source manually25 source types, from books and films to podcasts and datasets, each with the fields its citation needs. Sources with no file at all cite like any upload. | Included | Included | Included |
| AI metadata extractionUpload a paper and its title, authors, year and publication details fill themselves in, with anything missing flagged so you can add it. | Included | Included | Included |
| Duplicate detectionUpload the same paper twice and you still end up with a single source. | Included | Included | Included |
| Source propertiesFix or complete any field once, and every citation of that source and the reference list follow. | Included | Included | Included |
| Reader & annotation | |||
| Built-in readerRead beside your draft, with several sources open as tabs. | Included | Included | Included |
| PDF View and Text ViewThe original page layout or the extracted text, with zoom, fit-to-page and find-in-document in PDF View. | Included | Included | Included |
| Highlight toolMark passages as you read. Each Highlight lands in the Source Explorer under its source, ready to drag into your document as a quotation or citation. | Included | Included | Included |
| Comment toolAttach your own thinking to a specific place in the text. Each Comment lands in the Source Explorer under its source, ready to drag into your document. | Included | Included | Included |
| Region toolIn PDF View, draw a rectangle around a figure or table to extract it as an image, then drag it into the Writer. | Included | Included | Included |
| Search | |||
| Global SearchSearches source content, Highlights and Comments together, in two modes. | Included | Included | Included |
| AI modeAsk a question or describe what you're after; it interprets the query and returns an AI Summary of what it found, with a note on why each result is relevant. | AI Search passages explained: 50 | AI Search passages explained: 2,000 a month | AI Search passages explained: Unlimited |
| Exact phrase modeLiteral phrase matching when you know the words. | Included | Included | Included |
| Project SearchesEvery search of your project is saved with its results, so you can reopen it later. | Included | Included | Included |
| Citations | |||
| Drag-and-drop citation insertionDrag a source, Highlight or Comment into your draft and a formatted in-text citation appears. | Included | Included | Included |
| Quotations with page numbersDrag a Highlight in as a quotation and the quoted words, the citation and the page number arrive together, set as a block quote where your style calls for one. | Included | Included | Included |
| Parenthetical or narrativePick the form as you insert. | Included | Included | Included |
| Citation validationChecks every citation in the project in one pass and reports each as valid, warning, retracted or unverifiable — with counts across the project, re-runnable on demand. | Included | Included | Included |
| Five citation stylesAPA 7th, MLA 9th, Chicago author-date, Harvard and IEEE. Switch style and every citation in your draft re-formats. | Included | Included | Included |
| Global style with per-project overrideSet your default in Settings, change it for any project, or pick a different one when you publish. | Included | Included | Included |
| Automatic bibliographyBuilt from the citations actually in your draft and formatted at publish. | Included | Included | Included |
| Writing & publishing | |||
| Integrated writing editorWrite beside your sources, with headings, lists, tables and links, autosave, and live word and citation counts. | Included | Included | Included |
| Document typesWorking Notes for thinking and drafting, Research Draft for the paper you'll publish, as many of each as the project needs. | Included | Included | Included |
| Live citation flaggingA citation with incomplete metadata is marked in your document as you write, naming which fields are missing so you fix it at source long before publish — same for a citation whose source has been removed. | Included | Included | Included |
| Publish to Word or Markdown.docx or .md out, citations formatted in the style you pick, with the reference list included or left out. | Included | Included | Included |
| Projects & organization | |||
| Multiple projectsSeparate workspaces per paper, module or thesis. | Included | Included | Included |
| Folder treeOrganize sources into nested folders, drag and drop between them, and move several at once. | Included | Included | Included |
| Referral program | |||
| Personal referral linkShare it anywhere, with a ready-written message to copy. | Included | Included | Included |
| Free monthsEarned as people you refer sign up. | Included | Included | Included |
Pricing questions
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