AI search & research tool compared fact by fact
As of , the lowest annual price is Consensus Pro at $12/month billed annually, and 4 of 8 services have a free tier (Perplexity, Consensus, Elicit and Undermind).
Prices are from each vendor's official pricing page, checked on . This page has no affiliate links.
Each table is sorted by one fact only. We do not rate or rank services. Services without a confirmed value are left out of that table.
AI search & research tool by lowest annual price
| Service | Lowest annual price | Same plan billed monthly | Usage limit |
|---|---|---|---|
| ConsensusPro | $12/mo | — | Unlimited Pro messages, 15 Deep reviews per month, 500 API and MCP uses per month included ($0.05/use after). $144/year. |
| SciSpacePremium | $12/mo | $20/mo | 1,200 credits per month, Deep Research, up to 4 parallel agent chats. |
| SciteBasic | $12/mo | — | Full Assistant and Search access, 250 MCP credits per month, collections up to 1,000 papers. |
| UndermindTeam | $15/mo | — | Per person. All Pro features plus member management, priority support, centralized billing. Billed annually. |
| PerplexityPro | $16.67/mo | $20/mo | Weekly Pro search limit, monthly Research limit (average use). $200/year. |
| ElicitPro | $49/mo | — | Per user. Standard usage for Research Agent, Reports and systematic reviews; screens 5,000 papers. $588/year. |
AI search & research tool with a free tier
| Service | Free tier | Lowest monthly price |
|---|---|---|
| Perplexity | 3 Pro searches per day, 1 Research query per month | $20/mo |
| Consensus | 10 Pro messages per month, up to 3 Deep reviews per month (basic paper search free) | — |
| Elicit | Limited usage for Research Agent and Research Reports. Unlimited paper search, summaries and chat with papers. | — |
| Undermind | Standard rate limits on chats and searches | — |
AI search & research tool side-by-side comparisons
- Perplexity vs Consensus
- Perplexity vs Elicit
- Perplexity vs Scite
- Perplexity vs SciSpace
- Consensus vs Elicit
- Consensus vs Scite
- Consensus vs SciSpace
- Elicit vs Scite
- Elicit vs SciSpace
- Scite vs SciSpace
Compare all plans on the AI search & research tool pricing table.
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Links marked "Affiliate link" pay us a commission if you subscribe. They do not change the order of the tables, which is sorted by price. Prices are as published by each vendor (most exclude sales tax and VAT). Check the vendor's page before you buy.
How this data is collected: Prices are read by hand from each vendor's official pricing page and stored with the date and source URL. Values we could not confirm there are left blank. Last checked .