Kagi vs Perplexity
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
AI tool · Paid
A paid, ad-free search engine with AI summaries, a research assistant and personal result ranking.
AI tool · Freemium
An AI answer engine that searches the web and responds with cited sources.
Our verdict
Kagi is a paid, ad-free search engine where you control which sites rank higher or get blocked, with AI summaries and an assistant layered on top. Perplexity is an AI answer engine that writes a direct response to your question with cited sources you can check, and it has a free tier. Both sit in the AI search category, so the choice comes down to whether you want a cleaner search experience you pay for or quick, source-linked answers at a freemium price.
Pick Kagi if you want ad-free search results, are willing to pay for search, and want to customise which sites rank.
Pick Perplexity if you want quick answers with inline citations for current events or web research, and are happy with a freemium model.
| Key difference | Kagi | Perplexity |
|---|---|---|
| Core idea | Ad-free search engine with AI summaries and personal ranking. | AI answer engine that responds with cited web sources. |
| Price | Paid; you pay to search. | Freemium; a free tier is available. |
| Best at | Clean results and boosting or blocking specific sites. | Quick cited answers and current events research. |
| Extra tools | Quick Answer summaries and an assistant with multiple models. | Deep research mode and Spaces for grouped research. |
| Platforms | Web, iOS, Android, and Chrome. | Web, iOS, Android, macOS, Windows, and API. |
Written with AI from both products' catalogue entries · updated 2026-10-29
Who each one is for
Choose Kagi if you need…
- Ad-free search
- Customising which sites rank
Choose Perplexity if you need…
- Quick cited answers
- Current events and web research
Side-by-side
| Kagi | Perplexity | |
|---|---|---|
| Type | Research & learning · AI search | Research & learning · AI search |
| Price | Paid | Freemium |
| Platforms | Web, iOS, Android, Chrome | Web, iOS, Android, macOS, Windows, API |
| Works with | Chrome | Chrome |
| Hands-on tested by us | Not yet | Not yet |
| Last checked | 2026-10-29 | 2026-10-29 |
What each one is
Kagi
A paid, ad-free search engine with AI summaries, a research assistant and personal result ranking. Noticeably cleaner results. You have to pay for search, which won't suit everyone.
Perplexity
An AI answer engine that searches the web and responds with cited sources. Citations make answers easy to check, which is its main advantage. Always open the sources: summaries can still misstate what they say.
Best for
Kagi
- Ad-free search
- Customising which sites rank
Perplexity
- Quick cited answers
- Current events and web research
Strengths
Kagi
- Ad-free results
- Site boosting and blocking
- Quick Answer summaries
- Assistant with multiple models
Perplexity
- Answers with inline citations
- Deep research mode
- Choice of underlying models
- Spaces for grouped research
Frequently asked questions
Should I use Kagi or Perplexity?
Kagi is a paid, ad-free search engine where you control which sites rank higher or get blocked, with AI summaries and an assistant layered on top. Perplexity is an AI answer engine that writes a direct response to your question with cited sources you can check, and it has a free tier. Both sit in the AI search category, so the choice comes down to whether you want a cleaner search experience you pay for or quick, source-linked answers at a freemium price. Pick Kagi if you want ad-free search results, are willing to pay for search, and want to customise which sites rank. Pick Perplexity if you want quick answers with inline citations for current events or web research, and are happy with a freemium model.
What is the difference between Kagi and Perplexity?
Kagi: A paid, ad-free search engine with AI summaries, a research assistant and personal result ranking. Perplexity: An AI answer engine that searches the web and responds with cited sources. Kagi suits ad-free search, while Perplexity suits quick cited answers.
Are Kagi and Perplexity free?
Kagi: Paid. Perplexity: Freemium.
What are other alternatives to Kagi and Perplexity?
Other options people compare them with include You.com.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.