AI answer engine with numbered citations on every answer and a choice of models
Free plan · paid from $20/month
The Best AI search engines in 2026
- 7 apps ranked
- Updated Oct 2026
- Researched from official sources
AI search engines answer your question directly instead of handing you ten blue links, and show the web pages the answer came from. Some are free and built into search you already use, some are paid and ad-free, and some put privacy first. We checked the leading ones and ranked them with the same published rubric.
Our top picks
Free AI answers inside Google Search, with follow-ups, photo and voice search
Free plan · paid from £4.49/month
Web search built into ChatGPT, with cited answers you can keep working on
Free plan · paid from $8/month
The full ranking
7 apps, best first- 1
Perplexity
Best forGetting a quick, sourced answer you can check claim by claim
AI answer engine with numbered citations on every answer and a choice of models
Mobile appFree plan · paid from $20/month
Pros & cons
- Numbered inline citations are the easiest to audit
- Basic search works without signing in
- One Pro plan covers several frontier models
- Highly rated iPhone and Android apps
- Free tier's Auto mode doesn't say which model answered
- Citations can sound confident without fully backing the claim
- Signed-out searches disappear after 14 days
8.8/10★★★★★Visit ↗ - 2
Google AI Mode
Best forAnyone who wants AI answers without leaving Google or paying
Free AI answers inside Google Search, with follow-ups, photo and voice search
Mobile appFree plan · paid from £4.49/month
Pros & cons
- Free, with no new app or sign-up
- Google's huge index and local, shopping and travel data
- Best multimodal search: photo, voice and live video
- More inline links to sources since October 2026
- Answer quality is uneven on hard or niche questions
- Personalisation means sharing more data with Google
- Google labels AI Mode experimental and warns it can make mistakes
8.6/10★★★★★Visit ↗ - 3
ChatGPT search
Best forSearches that are one step in a longer task
Web search built into ChatGPT, with cited answers you can keep working on
Mobile appFree plan · paid from $8/month
Pros & cons
- Search, writing and analysis in one conversation
- Shopping results that OpenAI says aren't paid ads
- Works for logged-out users
- Top-rated apps with huge user base
- Citations are clumsier than Perplexity's
- Sometimes answers from memory instead of searching
- Free tier now shows ads in some countries
8.4/10★★★★★Visit ↗ - 4
Brave Search
Best forPrivacy-minded people who want free AI answers without a Google account
Private search on its own index, with free cited AI answers and Ask Brave chat
Mobile appFree plan · paid from $3/month
Pros & cons
- Independent index rather than Google or Bing results
- No account needed; chats expire after 24 hours and aren't used for training
- Ad-free search for just $3 a month
- Works in any browser, plus Brave's apps
- Smaller index leaves gaps on long-tail queries
- AI answers are less sharp than Perplexity's or Google's
- No photo search or model choice
8.3/10★★★★★Visit ↗ - 5
Kagi
Best forHeavy searchers happy to pay for ad-free results and model choice
Paid, ad-free search with cited Quick Answers and an AI Assistant on 30+ models
Mobile appFrom $5/month
Pros & cons
- No ads or trackers, and no AI training on your searches
- Quick Answer cites the pages it used
- Wide choice of AI models in Assistant
- Lenses and personalisation tune results
- No free plan after the 100-search trial
- Cheapest plan caps you at 300 searches a month
- Best models and Research mode need the $25 Ultimate plan
7.8/10★★★★★Visit ↗ - 6
Microsoft Copilot Search
Best forBing and Windows users who want free cited answers without signing in
Bing's AI search mode, with inline-linked answers and no sign-in needed
Mobile appFree
Pros & cons
- Free with no account
- Clear inline citations and full source list
- Mixes AI answers with normal web results
- Built into the Bing app and Edge
- Follow-ups are suggested searches rather than a true chat
- No deeper research mode or model choice in search
- Microsoft's AI search is split across Bing and the Copilot app
7.8/10★★★★★Visit ↗ - 7
DuckDuckGo Search Assist
Best forPrivacy-first searchers who want occasional AI help, not AI everywhere
Short, anonymous AI answers in DuckDuckGo search, with follow-ups in Duck.ai
Mobile appBrowser extensionFree plan · paid from $9.99/month
Pros & cons
- Answers generated anonymously; searches never tracked
- Free, with no account needed
- Easy to dial AI answers up, down or off
- Well-rated private browser apps
- Answers are short and cite only one or two sources
- Follow-ups happen in a separate chat
- No photo search or deep research mode
7.7/10★★★★★Visit ↗
Compare at a glance
Scroll sideways on mobile| # | App | Free plan | Paid from | iOS | Android | Web | Answer quality | Ease of use | Features | Value for money | Platforms | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Perplexity | Yes | $20/month | ✓ | ✓ | ✓ | 8.5 | 9.5 | 8.5 | 8.5 | 9 | 8.8 |
| 2 |  Google AI Mode | Yes | £4.49/month | ✓ | ✓ | ✓ | 7.5 | 9.5 | 8 | 9.5 | 9 | 8.6 |
| 3 |  ChatGPT search | Yes | $8/month | ✓ | ✓ | ✓ | 8 | 9 | 8 | 8 | 9.5 | 8.4 |
| 4 |  Brave Search | Yes | $3/month | ✓ | ✓ | ✓ | 7 | 9 | 8 | 9.5 | 9 | 8.3 |
| 5 |  Kagi | No | $5/month | ✓ | ✓ | ✓ | 8.5 | 8 | 8 | 6.5 | 7 | 7.8 |
| 6 |  Microsoft Copilot Search | Yes | Free | ✓ | ✓ | ✓ | 7 | 8.5 | 6.5 | 9 | 8.5 | 7.8 |
| 7 |  DuckDuckGo Search Assist | Yes | $9.99/month | ✓ | ✓ | ✓ | 6 | 9 | 6.5 | 9.5 | 9 | 7.7 |
Head to head
9 comparisons
For developers
Make AI search engines? Get yours reviewed here.
People compare AI search engines on this page before they choose. Paste your website after checkout and we'll research, score and publish your listing.
- Full profile page
- Scored with the same rubric
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- Included in comparisons
How we rank AI search engines
Every search engine was checked on 23 October 2026 against its own website, pricing, help pages and app-store listings, plus independent 2026 reviews. Each gets five scores out of 10, weighted into an overall score.
Ties are broken by the answer quality score. To be listed, a product's main job has to be answering web searches with up-to-date answers that cite their sources. General chatbots, AI browsers and deep-research report tools are ranked in their own lists. The list is open: developers can submit an app, and we review it with the same rubric.
Features are scored half by our editors and half by this published checklist, ticked only where the app's own pages or app-store listing confirm it:
- Inline citations linked to each source
- Follow-up questions that keep the context
- Deeper multi-step research mode
- Search with a photo or image
- Choose which AI model answers
- Works without an account
- Ad-free results (free or on a paid plan)
- Doesn't profile you or train AI on your searches
- iPhone and Android apps
Rankings are editorial. Companies can't pay to change a score or a position, and any paid placement is labelled Featured.
Reviewed by Tech Arcade editors · Updated Oct 23, 2026
- Answer quality30%
- Ease of use20%
- Features20%
- Value for money20%
- Platforms10%
Quick answers
What is the best AI search engine?
In our October 2026 comparison, Perplexity scored highest: every answer carries numbered citations, follow-ups keep the context, and Pro lets you pick the AI model. Google AI Mode came a close second as the best free option, followed by ChatGPT search for searches that turn into longer tasks.
What is the best free AI search engine?
Google AI Mode is free inside Google Search and handles photos, voice and follow-up questions. Brave Search's AI answers and Ask Brave are free with no account, and Microsoft's Copilot Search in Bing also works without signing in.
Which AI search engine is most private?
Brave Search runs its own index, says it doesn't profile users, and deletes Ask Brave chats after 24 hours of inactivity. DuckDuckGo says it never tracks your searches and generates its AI answers anonymously. Kagi is paid, ad-free and says it never uses your searches to train AI.
Is Kagi worth paying for?
If you search a lot and want no ads, possibly: plans start at $5 a month for 300 searches, with unlimited searches at $10. Its Quick Answer and Assistant cite sources well, but free rivals such as Perplexity, Google AI Mode and Brave cover most everyday needs, which is why Kagi has the lowest value score and ranks sixth overall.
Do companies pay to be on this list?
No. Rankings come from the published rubric and can't be bought. Developers can pay for a Featured spot above the ranking; it's always marked Sponsored and never changes scores or positions.
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