Otio vs SciSpace

Otio

• Researchers synthesizing dozens of papers into a literature review
• Consultants, lawyers and analysts working across many client documents
• People who want several AI models under one subscription
• Learning from videos and podcasts as well as PDFs

SciSpace

• Students and researchers who want search, reading and writing tools in one place
• Getting plain-language explanations of dense papers, equations and tables
• Research teams of 2 to 300 people billed per user

Otio

• The Free plan allows 10 uploads a day, 25 MB per file and 50 MB in total, with 1 space and 2 parallel chats.
• The site's FAQ puts daily Free usage at about 1 to 2 deep searches, 10 premium-model chats or 50 standard chats.
• Lite costs the same on monthly and annual billing; the 50% annual saving applies to Go and Pro.
• The pricing page lists web, desktop and iPhone apps; no Android app is listed.

SciSpace

• SciSpace's site blocked automated reading, so prices come from an Internet Archive copy of its pricing page captured on September 30, 2026.
• The limits of the free tier could not be confirmed on a SciSpace page.
• Paid plans meter usage in monthly credits: 1,200 on Premium, 10,000 on Advanced and 40,000 or more on Max.
• The mobile app is listed for iPhone and iPad; no Android app was found on Google Play (US) when checked.

Otio

Chat across your sources

Ask one question across everything in a workspace and get an answer cited to the exact page or timestamp. Sources include PDFs, web pages, YouTube videos, podcasts, audio and spreadsheets.

Many AI models on every plan

ChatGPT, Claude, Gemini, Grok, Llama, DeepSeek and Moonshot models are available on all plans, with an Auto router and a side-by-side comparison of two models.

Deep Research

Multi-step research across your own sources and the open web, with each step of the reasoning visible. It is included on the Free plan within its usage limits.

Reader and notes

A reader view lets you highlight a passage in a source and ask about it. Notes made from a PDF or video are editable and export as Markdown.

Spaces

Separate workspaces keep each project's sources, chats and outputs apart: 1 on Free, 2 on Lite and 5 on Go.

Outputs and delivery

Generates documents, charts from spreadsheets and images, and can deliver results by email, Google Drive or Telegram.

SciSpace

Literature Review

Ask a research question in plain language and get answers drawn from a repository of more than 270 million papers, each with references to its sources.

Chat with PDF

Ask questions about a paper or PDF and get answers backed by citations that point to where in the source they came from.

SciSpace Agent and Biomedical Agent

Agents take on research tasks and draw on the plan's monthly credits. Each plan also caps how many tasks run at once: 4 on Premium, 8 on Advanced and 16 on Max.

Writing and citation tools

AI Writer, Paraphraser and AI Detector sit beside a Citation Generator that formats references in APA, MLA and more than 2,300 other styles.

Extract Data

Pulls the summary, conclusions and findings out of several PDFs at once so papers can be compared side by side.

Chrome extension

Explains highlighted text, math and tables on any web page or PDF, answers follow-up questions with citations and replies in 13 languages.

Otio

• Free$0

  Limited AI usage with every model and Deep Research, 10 uploads a day, 50 MB of storage, 1 space and 2 parallel chats.

• Lite$7

  per month, billed monthly; or $84 billed annually

  50 uploads a day, PDFs of up to 500 pages, 250 MB of storage, 2 spaces and 5 parallel chats.

• Go$18

  per month, billed annually ($216); $36 billed monthly

  3 times the chats, research and uploads of Lite: 250 uploads a day, 500 MB, PDFs of up to 1,000 pages, 5 spaces and 10 parallel chats.

• Pro$45

  per month, billed annually ($540); $90 billed monthly

  10 times the chats, research and uploads of Lite: 500 uploads a day, 1 GB of storage and PDFs of up to 2,000 pages.

• Team$25

  per seat / month, billed yearly; $30 billed monthly

  Everything in Pro with a shared workspace, central billing and user management, admin controls and priority support. Arranged through sales.

SciSpace

• Premium$12

  per month, billed annually ($144); $20 billed monthly

  1,200 credits a month and up to 4 concurrent tasks.

• Teams (Premium)$15

  per user / month, billed annually ($180); $25 billed monthly

  For 2 to 300 users, each with 1,200 credits a month and up to 4 concurrent tasks.

• Advanced$70

  per month, billed annually ($840); $90 billed monthly

  10,000 credits a month and up to 8 concurrent tasks.

• Teams (Advanced)$75

  per user / month, billed annually ($900); $100 billed monthly

  For 2 to 300 users, each with 10,000 credits a month and up to 8 concurrent tasks.

• MaxFrom $160

  per month, billed annually ($1,920); from $200 billed monthly

  Priced by credit tier, from 40,000 credits a month up to 300,000, with up to 16 concurrent tasks.

• Teams (Max)$175

  per user / month, billed annually ($2,100); $220 billed monthly

  For 2 to 300 users, each with 40,000 credits a month and up to 16 concurrent tasks.

Otio

• Annual discount

  Yearly billing halves the price of Go and Pro

  Go is $18 a month billed annually against $36 billed monthly, and Pro is $45 against $90. The pricing page labels yearly billing as saving 50%.

SciSpace

• Annual discount

  Save 20% to 40% with annual billing

  Annual billing brings Premium from $20 to $12 a month (40% off), Advanced from $90 to $70 (22% off) and the entry Max tier from $200 to $160 (20% off).