kitio.aiOtio vs SurfSense
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Otio starts at $7/mo and SurfSense starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Chat with citations
- Video and podcast summaries
- AI PDF reader and OCR
- Multiple AI models
- Zotero and cloud integrations
- Agentic research
- Runs fully offline
- Local models or your own keys
- Windows, macOS and Linux app
- Scraper plugins
- Web crawler
- No account needed
| Feature | Otio | SurfSense |
|---|---|---|
| Best for | AI research workspace for PDFs, videos and web pages | Private, open-source research notebook that runs on your own machine |
| Category | Research & search | Research & search |
| Pricing model | Freemium | Freemium |
| Starting price | $7/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Otio | SurfSense |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Otio starts at $7/mo and SurfSense starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Limited monthly AI usage
- 10 files up to 25 MB each
- 1 space and 2 parallel chats
Lite
$7/mo billed yearly
- Agentic research and documents
- 50 uploads per day
- 2 spaces
Go
$18/mo billed yearly
- 3x more chats and research
- 250 uploads per day
- 5 spaces
Pro
$45/mo billed yearly
- 10x more chats and research
- 500 uploads per day
- Parallel research across projects
2 plans
Free
Free
- Full app on Windows, macOS, Linux
- Runs offline
- 14-day plugin licence
Individual
$60 first year, then $120/yr
- All scraper plugins
- Web crawler
- Priority support
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Otio
- Cites the page for each answer
- Handles many source types
- Free plan to start
- Free plan has limited AI usage
- Prices show yearly billing by default
- Upload limits apply on each tier
SurfSense
- Data never leaves your machine
- Free app with no usage cap
- Source code is public
- Plugins and support need a licence
- You supply the model or keys
- Moving to a local app changes older setups
Which one should you choose?
Choose Otio if you want:
- Cites the page for each answer
- Handles many source types
- Free plan to start
Watch out: free plan has limited ai usage.
Choose SurfSense if you want:
- Data never leaves your machine
- Free app with no usage cap
- Source code is public
Watch out: plugins and support need a licence.
Otio vs SurfSense FAQ
What is the difference between Otio and SurfSense?
Otio: AI research workspace for PDFs, videos and web pages. SurfSense: Private, open-source research notebook that runs on your own machine. Both are research & search tools.
Is Otio or SurfSense cheaper?
Otio starts at $7/mo and SurfSense starts at See pricing page. Check both pricing pages for current plans.
Do Otio and SurfSense have free plans?
Otio: Yes. SurfSense: Yes.
Who makes Otio?
Otio is made by Otio.
Who makes SurfSense?
SurfSense is made by SurfSense.
Which should I choose, Otio or SurfSense?
Choose Otio if you value cites the page for each answer and handles many source types. Choose SurfSense if you value data never leaves your machine and free app with no usage cap.