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Otio

AI research assistant that summarises PDFs, video, podcasts and spreadsheets in one writing workspace

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freemiumFree is $0 with limited monthly chats and a basic PDF viewer. Lite is $7/month ($84/year) and adds agentic AI. Go is $18/month ($216/year) with roughly 3x the chat and research capacity and all AI models. Pro is $45/month ($540/year) with roughly 10x capacity for daily research. Yearly billing is advertised at 50% off. Separate Business plans are available.View full pricing →

About Otio

Otio is an AI research assistant and writing environment aimed at people whose work is reading a large pile of sources and producing something defensible from them. The reading layer handles more input types than most competitors: an AI PDF reader with OCR and extraction, YouTube video and podcast summarisers, a webpage summariser, book and textbook summarisers, and spreadsheet analysis with AI data visualisation. Sources come in through Zotero, Dropbox, OneDrive and Box integrations, so an existing reference library does not have to be re-uploaded by hand. On top sits a text editor and essay-writing surface, so the summarising and the drafting happen in the same workspace rather than across a reader and a separate document. Otio exposes multiple underlying AI models rather than binding to one provider, and its agentic features are gated by tier. Positioning is split between academics and professionals, with dedicated paths for legal research, financial analysis, ESG analysis, policy work, medical students and pharma/clinical teams — which is a narrower and more useful framing than the general 'chat with your PDF' category it sits next to. Pricing runs from a free tier through three paid tiers, with yearly billing at half the monthly rate.

Key Features

AI PDF reader with OCR and extraction
YouTube video, podcast, book, textbook and webpage summarisers
Spreadsheet AI with data visualisation
Zotero, Dropbox, OneDrive and Box integrations
Built-in text editor and essay-writing surface
Multiple underlying AI models rather than a single provider
Dedicated paths for legal, financial, ESG, policy, medical and pharma research

Otio Pros & Cons

Pros

  • +Handles video and podcasts alongside PDFs, so the whole source pile lives in one place
  • +Zotero integration means an existing academic library imports rather than being rebuilt
  • +Reading and drafting in the same workspace removes a real context switch
  • +$7 entry tier is unusually cheap for an agentic research tool
  • +Vertical framings (legal, ESG, policy) are more concrete than generic 'chat with docs'

⚠️ Cons

  • Four tiers plus a Business track makes it hard to work out which plan you need
  • The advertised 50% saving is only on annual prepayment
  • Agentic features are withheld from the free tier entirely
  • Broad feature surface risks being shallower than a specialist tool in any one area

Who Is Otio Best For?

👤Academics and graduate students working from a large Zotero library
👤Analysts who need to summarise filings, transcripts and spreadsheets together
👤Policy and ESG researchers producing written output from mixed-format sources

Tags

researchpdfsummarizationwritingacademiczotero
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