Otio is an AI research workspace that answers across PDFs, videos and web pages with page-level citations. Free plan; paid plans from $7/month.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
Otio is an AI research workspace that keeps PDFs, articles, web pages, YouTube videos, podcasts, spreadsheets and notes in one library and lets users chat across them. Answers carry page-level or timestamp-level citations, so a reader can check a claim against the original passage. The company says more than 200,000 professionals and researchers use it across 74 languages.
The product positions itself as a persistent home for research rather than a one-off chat window. Sources stay in the workspace between sessions, can be searched later, and are organized into separate spaces by project. Otio also offers several AI models in the same interface, including ChatGPT, Claude, Gemini, Grok, Llama, DeepSeek and Moonshot.
Users add sources by dragging files into a space or by connecting Google Drive, Dropbox, OneDrive, Box, Zotero or Mendeley. Otio accepts PDFs, web pages, YouTube videos, podcasts, audio, CSV files and notes. For scanned or image-based PDFs, the features page says Otio uses Datalab for OCR, so older scans can be read like any other file.
Once sources are in place, users ask questions across the whole library and receive one answer with citations to the exact page or timestamp. The model can be switched mid-chat, two models can be compared side by side on the same question, and an Auto router can pick one. Reasoning steps are visible rather than hidden.
Deep Research runs multi-step research across a user's own sources and the open web, with each claim traceable to a source. A reader view lets users highlight text inside a document and ask a question about it, and it is available on paid plans. Users can also turn a PDF or video into editable notes and export them as markdown.
For data work, Otio builds charts and visualizations from spreadsheets and CSV files. Paid plans add agentic workflows that research, create documents, charts or images, and deliver them by email, Google Drive, Telegram and other channels. Parallel chats let several lines of questioning run at once, from two on Free up to ten or more on Pro.
Otio is an AI research workspace that stores PDFs, articles, videos, podcasts and spreadsheets in one library. Users chat across the sources and receive answers cited to the exact page or timestamp.
Otio has a Free plan at $0. Paid personal plans are Lite at $7/month ($84/yr billed annually), Go at $18/month ($216/yr) and Pro at $45/month ($540/yr). The pricing page also has a Business tab whose details are not shown in the source text.
Yes. The Free plan needs no card and includes limited monthly AI usage, up to 10 files at 25MB each and 50MB total, 1 space and 2 parallel chats. It includes all AI models and Deep Research.
Otio supports ChatGPT, Claude, Gemini, Grok, Llama, DeepSeek and Moonshot, plus an Otio Auto router. Users can switch models mid-chat or compare two models side by side, and all models are available on every plan.
Otio connects to Google Drive, Dropbox, OneDrive and Box for files, and Zotero and Mendeley (desktop) for reference libraries. Generated results can be delivered by email, Google Drive and Telegram on paid plans.
Yes. According to Otio's features page, it uses Datalab OCR for scanned and image-based PDFs, so older documents and physical scans can be queried like other files.
Otio is aimed at people who work with many documents at once, including researchers, lawyers, consultants, analysts, writers and journalists. It is most useful when answers must be verified against the source.
The pricing page lists a web app, a desktop app for Mac, Windows and Linux, and an iPhone app. These are available on all plans.