AI search & research tool pricing (8 tools)
As of , of the 8 AI search & research tool services listed, 4 have a free tier. The lowest-priced paid plan billed monthly is Kagi Starter at $5/month.
Prices are from each vendor's official pricing page, checked on . This page has no affiliate links.
Kagi plansPricing page (source)
Only values shown on each vendor's official pricing page are listed. "—" means the page did not state it. Checked .
| Service | Lowest monthly price | Free tier | Plan usage limit |
|---|---|---|---|
| Kagi | $5Starter | None | 300 searches per month, Assistant with Quick mode. |
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| Perplexity | $20Pro | 3 Pro searches per day, 1 Research query per month | Weekly Pro search limit, monthly Research limit (average use). $200/year. |
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| SciSpace | $20Premium | — | 1,200 credits per month, Deep Research, up to 4 parallel agent chats. |
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| Consensus | $12Pro, billed annually | 10 Pro messages per month, up to 3 Deep reviews per month (basic paper search free) | Unlimited Pro messages, 15 Deep reviews per month, 500 API and MCP uses per month included ($0.05/use after). $144/year. |
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| Scite | $12Basic, billed annually | None | Full Assistant and Search access, 250 MCP credits per month, collections up to 1,000 papers. |
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| Undermind | $15Team, billed annually | Standard rate limits on chats and searches | Per person. All Pro features plus member management, priority support, centralized billing. Billed annually. |
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| Elicit | $49Pro, billed annually | Limited usage for Research Agent and Research Reports. Unlimited paper search, summaries and chat with papers. | Per user. Standard usage for Research Agent, Reports and systematic reviews; screens 5,000 papers. $588/year. |
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| Genspark | — | — | — |
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Columns in the AI search & research tool table
- Free tier: what you get with a free account. Credit-based limits are written as the vendor states them.
- Lowest monthly price: the lowest price billed month to month. Annual prices (per month) are on each service's page.
AI search & research tool pricing by service
- Perplexity pricing
- Genspark pricing
- Consensus pricing
- Elicit pricing
- Scite pricing
- SciSpace pricing
- Undermind pricing
- Kagi pricing
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
Annual prices and free tiers are sorted one fact at a time on the AI search & research tool facts page.
Pricing tables for other AI tools
- AI Voice Generator Pricing
- AI Video Generator Pricing
- AI Transcription Pricing
- AI Writing Tool Pricing
- AI Image Generator Pricing
- AI Chatbot Pricing
- LLM API Pricing
- AI Coding Assistant Pricing
- AI Translation Pricing
- AI Presentation Maker Pricing
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. Last checked .