10 Best AI Search Engines: Free AI-Based Searching Platforms

AI search engines revolutionize online searching by delivering fast, precise, and fact-based responses. Unlike traditional search engines, AI-powered search engines analyze and summarize information, providing users with accurate insights from trusted sources.

If you're searching for the best AI search engine, we've compiled a list of the top 10 AI-powered search engines available in 2025. Each one has unique strengths, so read on to find out which one suits your needs best!

1. Merlio AI Search – Best AI Search Engine Overall

Merlio AI Search leads the market with cutting-edge AI search technology, delivering fast, accurate, and reliable answers. This AI search engine supports both simple queries and in-depth research, ensuring users receive fact-checked and up-to-date results.

Pros:

• Offers both quick and detailed responses
• Geolocalized results for personalized searches
• Supports over 50 languages

Cons:

• Simple mode may lack in-depth answers

2. Perplexity – Best AI Search Engine for Real-Time Information

Perplexity AI integrates chatbot functionalities with AI search, offering up-to-date, source-backed results. Users can refine searches by choosing specific domains like YouTube or academic resources.

Pros:

• Real-time, data-backed responses
• Filters for customized searches
• API and file upload support in Pro mode

Cons:

• Slightly complex for beginners

3. iAsk – Best Free AI Search Engine

iAsk is a popular free AI search tool that offers simple answers, academic responses, forum searches, and expert insights. Voice search and additional AI tools enhance the experience.

Pros:

• Generous free plan
• Additional AI tools like grammar checker
• Customizable search options

Cons:

• Free version includes ads

4. Gemini – Best AI Search Engine for Versatility

Powered by Google, Gemini provides AI-generated responses directly within search results, delivering fast and efficient insights with supporting sources.

Pros:

• Backed by Google’s AI expertise
• Works seamlessly with Google Search
• Free to use

Cons:

• Occasionally produces inaccurate responses

5. Bing AI – Best AI Search Engine for Personalized Results

Microsoft's Bing AI integrates OpenAI's GPT-4, offering specialized AI models for different topics such as travel, fitness, and technology.

Pros:

• Available on desktop and mobile
• Multiple AI models for topic-specific results
• Generally reliable and accurate

Cons:

• Interface can be cluttered for beginners

6. ThinkAny – Best AI Search Engine for Speed

ThinkAny’s AI-powered search engine provides rapid, accurate results using Retrieval-Augmented Generation (RAG) technology. It also includes a built-in AI chatbot for further exploration.

Pros:

• Fast and efficient search processing
• Customizable search filters
• Integrated AI chatbot

Cons:

• Pro plan required for advanced features

7. Brave Search – Best AI Search Engine for Privacy

Brave Search prioritizes privacy while providing AI-powered results without tracking users. Its "Answer with AI" feature generates quick responses based on web content.

Pros:

• Strong privacy protections
• No user data tracking
• Accurate and informative results

Cons:

• Struggles with complex queries

8. Algolia – Best AI Search Engine for Webmasters

Algolia is an AI-powered search-as-a-service solution tailored for websites, blogs, and e-commerce stores, ensuring fast and relevant results.

Pros:

• Trusted by major developers
• Scalable and customizable
• API access for integration

Cons:

• Not designed for casual users

9. You.com – Best AI Search Engine for Customization

You.com blends AI search with chatbot interactions, offering different AI personalities such as "Smart" and "Creative" for tailored experiences.

Pros:

• Personalized AI search experience
• Free to use
• Multiple AI models for varied responses

Cons:

• Occasionally delivers outdated responses

10. Arc Search – Best AI Search Engine for Mobile

Arc Search is an AI-powered mobile browser that integrates search capabilities with advanced browsing features like ad-blocking and auto-archiving.

Pros:

• AI-driven browsing experience
• Clutter-free design
• Quick and responsive searches

Cons:

• Only available for mobile

Conclusion

The AI search landscape is evolving rapidly, offering users smarter and more intuitive ways to find information. Whether you're looking for a general-purpose AI search engine or a specialized tool, this list provides the best options available in 2025. If you're looking for a well-rounded and highly accurate search engine, Merlio AI Search stands out as the top recommendation.

FAQ

What is the best AI search engine?

Merlio AI Search offers the most accurate and reliable AI-powered search experience, making it the best overall option.

Are AI search engines free?

Most AI search engines offer free plans, but premium features are often behind paywalls.

Can AI search engines replace Google?

While AI search engines enhance online searching, traditional search engines like Google still play a key role in general web browsing.

Which AI search engine is best for privacy?

Brave Search is the best AI-powered search engine for users concerned about privacy and data tracking.

Are AI search engines better than traditional search engines?

AI search engines provide more direct, accurate, and context-aware responses, making them superior in certain use cases like research and quick fact-finding