Otio

What is Otio?

Otio is an AI research assistant built around handling large personal libraries of sources — PDFs, papers, web pages, YouTube videos, podcasts, and spreadsheets — without the tight caps other tools impose on file counts or notebook sources. Every plan, including Free, includes access to all major AI models (ChatGPT, Claude, Gemini, Grok, Llama, DeepSeek, Moonshot) plus "Otio Auto," which picks the best model automatically, and users can compare two models side by side on the same sources.

Deep Research runs multi-step queries across a user's own sources and the open web, with every answer cited to the exact page or timestamp. Paid tiers differ mainly by volume — daily upload limits, PDF page limits, and parallel chat counts — rather than by which features are unlocked.

Key features

• Upload hundreds of sources (PDFs, web pages, YouTube, podcasts, spreadsheets) per workspace
• Every AI model (ChatGPT, Claude, Gemini, Grok, Llama, DeepSeek, Moonshot) on every plan, including Free
• Side-by-side model comparison on the same set of sources
• Deep Research runs multi-step queries across your sources and the open web
• Page-level and timestamp-level citations on every generated answer
• AI PDF reader designed for an entire library, not just one document

How to get started

1. Upload PDFs, papers, web pages, YouTube links, or podcasts into a workspace
2. Ask questions and get answers cited to the exact page or timestamp
3. Compare two AI models side by side on the same sources if needed
4. Run Deep Research for multi-step queries across sources and the web
5. Upgrade for higher daily upload and parallel-chat limits as your library grows

Otio pricing

Otio's Free plan includes all AI models with modest daily limits (2 parallel chats, smaller file-size caps). Lite costs $7/month ($84/year billed annually) for higher limits, Go costs $18/month ($216/year) for 250 daily uploads and 10 parallel chats, and Pro costs $45/month ($540/year) for 500 daily uploads, 20 parallel chats, and 2,000-page PDF support.

Our take: Distinctive for gating none of its AI models behind higher tiers — even the Free plan gets ChatGPT, Claude, Gemini, and Grok — charging purely for source volume and workflow conveniences instead.

Prices verified 2026-09. Plans change often — confirm on the official site above before you buy.

Use cases

• Solo researchers synthesizing dozens of academic papers with verifiable citations
• Consultants pulling key insights from large sets of client documents and transcripts
• Lawyers analyzing discovery documents with source-level verification
• Analysts who want to compare how different AI models answer the same question

Otio vs. alternatives

FAQ

Is Otio free to use?

Otio's plans: Free; Lite $7/mo ($84/yr); Go $18/mo ($216/yr); Pro $45/mo ($540/yr). Pricing and free-tier limits change over time, so check the official site above for the latest details.

What is Otio used for?

AI research workspace for hundreds of sources at once, with every major AI model and page-level citations on every plan.

Who is Otio best for?

Otio is a good fit for solo researchers synthesizing dozens of academic papers with verifiable citations, or consultants pulling key insights from large sets of client documents and transcripts.

What are the alternatives to Otio?

Commonly compared alternatives include Humata, Elicit, and Perplexity, see the comparison above for how they differ.

How much does Otio cost?

Otio is free to start with access to every AI model at modest limits; paid plans scale by volume from $7/month (Lite, billed annually) to $18/month (Go) and $45/month (Pro) for higher daily upload and parallel-chat limits.