Listed together in guide “Research Q&A with verifiable sources”
Berlin-based search engine that pairs web search with AI overviews, an AI chat, and an option to turn AI off.
Free
Use cases
- Everyday searches that return AI overviews with sources
- Asking questions conversationally through Ecosia Chat
- Switching to AI-free search for conventional results
Pricing: Ecosia does not publish paid plans; the company states that it uses 100% of its profits for climate action and publishes monthly financial reports.
Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “AI answer engines”
AI search engine that returns direct, sourced answers to natural-language questions.
Free
Use cases
- Quick factual lookups with source citations
- Academic-oriented research questions
- Everyday search without ads
Pricing: iAsk.Ai is free for standard use; the Pro subscription unlocks premium models, unlimited usage, and extra tools.
Documentation ↗ · Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “Research Q&A with verifiable sources”
South Korean search portal whose service includes AI Briefing summaries and the AI Tab conversational search interface.
Free
Use cases
- Scanning condensed summaries of search results with AI Briefing
- Continuing a search as a conversation after reading AI Briefing results
- Moving from a query to a product, place, or reservation inside search
Pricing: Naver does not publish separate pricing for AI Tab; the feature is available to all users within its search service.
Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “Research Q&A with verifiable sources”
Alibaba's AI search and assistant app, which uses the company's Qwen models and combines web search, AI tools, and cloud storage.
Freemium
Use cases
- Web searching with AI summaries
- Creating documents and presentations with AI tools
- Storing and transferring files across devices
Pricing: Quark is free to download, and its App Store listing shows in-app purchases.
Documentation ↗ · Sources
This record was last reviewed on 2026-10-09.
Listed together in guide “Research Q&A with verifiable sources”
French privacy-focused search engine that adds AI-generated answers and one-click web page summaries.
Free
Use cases
- Getting short, precise answers to everyday searches
- Summarizing a web page with one click
- Searching without stored history or data resale
Pricing: Qwant's AI answers and page summaries are described as free and unlimited once a user creates a Qwant account.
Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “Research Q&A with verifiable sources”
AI-powered web browser from Perplexity with a built-in assistant that answers questions and performs tasks across pages.
Freemium
Use cases
- Researching topics across multiple tabs with AI summaries
- Automating routine browsing tasks
- Replacing separate search and chat tools with one browser
Pricing: Comet is free to use; higher usage limits and premium features come with paid Perplexity subscriptions.
Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “AI answer engines”
Neural web search API built for AI applications, returning meaning-based results and page content.
Paid
Use cases
- Grounding AI answers in fresh web content
- Research agents that need meaning-based search
- Finding pages similar to a reference URL
Pricing: Pricing is usage-based per search and content request; new developers receive free credits.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-10-10.
Listed together in guide “Research Q&A with verifiable sources”
Web browser from OpenAI with ChatGPT built in for summarizing pages, answering questions, and completing tasks in an agent mode.
Freemium
Use cases
- Summarizing and questioning web pages while reading
- Automating research and repetitive browsing tasks
- Drafting text inline using page context
Pricing: Atlas is a free download for ChatGPT account holders; agent mode and higher limits are reserved for paid ChatGPT plans.
Sources
This record was last reviewed on 2026-07-30.