kitio.aiAi2 Asta vs Undermind
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Ai2 Asta is completely free, while Undermind is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Paper finding agent
- Literature summaries
- Data analysis
- Semantic Scholar corpus
- MCP access
- Agentic paper search
- Relevance explanations
- Coverage estimates
- Full-text analysis
- Workspaces
| Feature | Ai2 Asta | Undermind |
|---|---|---|
| Best for | Free agentic research assistant for scientists from Ai2 | Deep academic search agent that reads papers to find the right ones |
| Category | Research & search | Research & search |
| Pricing model | Free | Freemium |
| Starting price | Free | $20/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Allen Institute for AI | Undermind |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Ai2 Asta is completely free, while Undermind is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Deep searches, chat and reports
- Shared workspaces
- Standard rate limits
Pro
$20/mo
- Latest, most powerful models
- 10x higher usage limits
- Unlimited workspaces and libraries
- $16/mo when billed annually
Team
$15/user/mo, billed annually
- Per user
- Everything in Pro
- Team management
- Priority support
Enterprise
Contact sales
- Increased compute
- Sitewide organizational login
- Admin dashboard
- Custom terms and SLA
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Ai2 Asta
- Free and nonprofit-backed
- Large scientific corpus
- Transparent benchmarks
- Still evolving quickly
- Interface less polished than paid tools
Undermind
- Finds papers keyword search misses
- Explains each result
- Free plan to try
- Searches take several minutes
- Focused on science fields
Which one should you choose?
Choose Ai2 Asta if you want:
- Free and nonprofit-backed
- Large scientific corpus
- Transparent benchmarks
Watch out: still evolving quickly.
Choose Undermind if you want:
- Finds papers keyword search misses
- Explains each result
- Free plan to try
Watch out: searches take several minutes.
Ai2 Asta vs Undermind FAQ
What is the difference between Ai2 Asta and Undermind?
Ai2 Asta: Free agentic research assistant for scientists from Ai2. Undermind: Deep academic search agent that reads papers to find the right ones. Both are research & search tools.
Is Ai2 Asta or Undermind cheaper?
Ai2 Asta is completely free, while Undermind is freemium.
Do Ai2 Asta and Undermind have free plans?
Ai2 Asta: Yes, fully free. Undermind: Yes.
Who makes Ai2 Asta?
Ai2 Asta is made by Allen Institute for AI, based in United States.
Who makes Undermind?
Undermind is made by Undermind, based in United States.
Which should I choose, Ai2 Asta or Undermind?
Choose Ai2 Asta if you value free and nonprofit-backed and large scientific corpus. Choose Undermind if you value finds papers keyword search misses and explains each result.