Answer Engines
Explore 8 options alongside Liner (Liner), a product in Answer Engines.
Candidates share an existing guide group, a comparison, or specific tags within the same category. This shortlist is not a ranking or a test result.
Listed together in guide “AI answer engines”
AI answer engine that finds and summarizes findings from peer-reviewed scientific research papers.
Freemium
Pricing: A free tier is available; paid plans add unlimited searches and advanced analysis features.
This record was last reviewed on 2026-09-10.
Listed together in guide “AI answer engines”
AI research assistant that finds, screens, and summarizes academic papers to help answer research questions.
Freemium
Pricing: A free tier is available; paid plans add higher usage levels and advanced extraction.
This record was last reviewed on 2026-09-10.
Listed together in guide “Research Q&A with verifiable sources”
Neural web search API built for AI applications, returning meaning-based results and page content.
Paid
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.
Related: shares the task Research with citations, Search
AI search engine that returns direct, sourced answers to natural-language questions.
Free
Pricing: iAsk.Ai is free for standard use; the Pro subscription unlocks premium models, unlimited usage, and extra tools.
This record was last reviewed on 2026-09-10.
Related: shares the task Research with citations, Search
Conversational AI search engine that answers questions and summarizes pages instead of showing ad-driven links.
Free
Pricing: Andi is free to use, with no advertising.
This record was last reviewed on 2026-09-10.
Related: shares the task Research with citations, Search
AI-powered web browser from Perplexity with a built-in assistant that answers questions and performs tasks across pages.
Freemium
Pricing: Comet is free to use; higher usage limits and premium features come with paid Perplexity subscriptions.
This record was last reviewed on 2026-09-10.
Related: shares the task Research with citations, Search
Berlin-based search engine that pairs web search with AI overviews, an AI chat, and an option to turn AI off.
Free
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.
This record was last reviewed on 2026-09-10.
Related: shares the task Research with citations, Search
Multilingual AI search engine that generates sourced answers and mind-map style summaries.
Freemium
Pricing: Felo is free for a limited number of daily advanced searches; the Pro plan unlocks more searches and premium models.
This record was last reviewed on 2026-09-10.