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Best Free AI Search Engines 2026: 6 Options Compared
Best free AI Search Engines compared: Genspark, ChatGPT, Gemini app, Microsoft Copilot and 2 more, with free-plan limits, platforms and prices from official pages checked October 25, 2026.
•3 min read•AI Chat & Assistants
Quick comparison
| Tool | Price | Platforms | Best for | Tested |
|---|---|---|---|---|
| Genspark | Free (Free plan: 100 credits per day up to a lifetime allowance, 1 GB AI Drive storage, limited access to models and agents); paid from $24.99 per month, Plus billed monthly ($19.99 billed annually); Pro $249.99 monthly; Team $40 per seat monthly | Web | Longer research questions with a summary page | Docs only |
| ChatGPT | Free (Free plan at $0/month); paid from $8 per month (Go; Plus $20/month; availability varies by region) | Web, iOS, Android, macOS, Windows | General questions where you also want follow-up chat | Docs only |
| Gemini app | Free (Free with a Google account); paid from $4.99 per month (Google AI Plus) | Web, iOS, Android | Google account users | Docs only |
| Microsoft Copilot | Free (free tier with lower usage than the paid plans); paid from $9.99 per month (Microsoft 365 Personal, includes higher Copilot usage) | Web, Windows, iOS, Android | Windows users and Edge browser fans | Docs only |
| Le Chat | Free (Free plan); paid from $14.99 per month (Pro) | Web, iOS, Android | Users who prefer a European vendor | Docs only |
| Grok | Free (Free tier at $0 per month with usage limits; xAI does not publish exact caps); paid from $30 per month (SuperGrok) | Web | Questions that benefit from X platform context | Docs only |
Independent comparison. Paid placements are labelled separately; editorial links earn no affiliate commissions. Learn more.
See the tools in action
Explore the interface and watch a workflow before choosing.
Good fit if
- You want daily research summaries with sources (Genspark is the pick)
- You live inside Google services (Gemini app is the pick)
- You use Windows and Edge all day (Microsoft Copilot is the pick)
- You want a non-US provider (Le Chat is the pick)
Not ideal if
- You need paid-tier features, uptime guarantees or support that these free plans leave out
An AI search engine answers your question in a paragraph with sources, instead of giving you ten links, and the free tiers are worth using as long as you know what they limit. Genspark offers a free plan with daily credits; third-party guides put it at about 100 a day, but the vendor page returned an error to us. The big chat assistants all have free plans that can search the web, including ChatGPT at $0 a month, Gemini with a Google account, Microsoft Copilot with lower usage than its paid tier, Le Chat, and Grok with undisclosed caps. Because xAI does not publish Grok's exact limits, treat it as best effort. Choose by what you ask. For quick factual lookups with citations, any of the six does the job. For long research tasks, the free allowance runs out fastest, so spread the heavy questions across tools. Always click through to the cited source before relying on a number, because generated summaries can misquote a page. The trade-off is privacy and tracking: signed-in assistants keep your history, whereas a traditional search box does not need an account at all.
Genspark
Free plan with daily credits; third-party guides report about 100 a day, but the exact number is not confirmed by the vendor page. Aimed at multi-step research rather than a single quick answer.
Price: Free (Free plan: 100 credits per day up to a lifetime allowance, 1 GB AI Drive storage, limited access to models and agents); paid from $24.99 per month, Plus billed monthly ($19.99 billed annually); Pro $249.99 monthly; Team $40 per seat monthly (Genspark pricing, checked 2026-10-25).
Platforms and license: Web. Proprietary.
Best for: Longer research questions with a summary page.
Compare: Genspark alternatives
ChatGPT
Free plan at $0 a month. Plus costs $20 a month monthly billing only. Free-plan usage limits shift, and chatgpt.com/pricing returned an error to us, so figures come from OpenAI help pages.
Price: Free (Free plan at $0/month); paid from $8 per month (Go; Plus $20/month; availability varies by region) (ChatGPT pricing, checked 2026-10-25).
Platforms and license: Web, iOS, Android, macOS, Windows. Proprietary.
Best for: General questions where you also want follow-up chat.
Worth knowing: Go is listed at $8/month and Plus at $20/month. Pro tiers are $100, $200 and $500/month. Plan availability and usage vary.
Compare: ChatGPT alternatives
Gemini app
Free with a Google account; Google AI Plus is $4.99 a month. Convenient if you already live in Gmail, Docs and Android.
Price: Free (Free with a Google account); paid from $4.99 per month (Google AI Plus) (Gemini app pricing, checked 2026-10-22).
Platforms and license: Web, iOS, Android. Proprietary.
Best for: Google account users.
Worth knowing: Google AI Pro is $19.99/month; Ultra starts at $99.99/month.
Microsoft Copilot
Free tier with lower usage than the paid plans; Microsoft 365 Personal at $9.99 a month includes higher Copilot usage. Works on web, Windows and phones.
Price: Free (free tier with lower usage than the paid plans); paid from $9.99 per month (Microsoft 365 Personal, includes higher Copilot usage) (Microsoft Copilot pricing, checked 2026-10-22).
Platforms and license: Web, Windows, iOS, Android. Proprietary.
Best for: Windows users and Edge browser fans.
Compare: Microsoft Copilot alternatives
Le Chat
Mistral's assistant has a free plan; Pro is $14.99 a month and verified students pay $5.99. A European alternative if you prefer a non-US provider.
Price: Free (Free plan); paid from $14.99 per month (Pro) (Le Chat pricing, checked 2026-10-22).
Platforms and license: Web, iOS, Android. Proprietary.
Best for: Users who prefer a European vendor.
Grok
Free tier at $0 with usage limits that xAI does not publish; SuperGrok is $30 a month.
Price: Free (Free tier at $0 per month with usage limits; xAI does not publish exact caps); paid from $30 per month (SuperGrok) (Grok pricing, checked 2026-10-22).
Platforms and license: Web. Proprietary.
Best for: Questions that benefit from X platform context.
Compare: Grok alternatives
Which one to pick
- You want daily research summaries with sources: Genspark
- You live inside Google services: Gemini app
- You use Windows and Edge all day: Microsoft Copilot
- You want a non-US provider: Le Chat
Limits of this review
Docs-only for Genspark, ChatGPT, Gemini app, Microsoft Copilot, Le Chat, Grok: we did not install or run them, so feature claims come from vendor pages. Vendor prices and free limits change; confirm on the linked pricing page before you commit.
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Kevin Fan
Kevin Fan is a SaaS founder. He runs Free Instead Of, which tracks free and open-source alternatives to paid software and checks each price and free-plan limit against the vendor's own pages.
Methodology
Based on official pricing, license and product pages checked between 2026-10-22 and 2026-10-25: Genspark, ChatGPT, Gemini app, Microsoft Copilot, Le Chat, Grok. Prices, free limits and licenses are the figures shown on those pages on those dates. No tool on this page was installed or run. No accounts were created.