Answer engines

An answer engine reads the web for you. You type a question, it runs one or more searches, opens a handful of pages and writes a short reply, usually with numbered links to the pages it used. Perplexity was built this way from the start. ChatGPT, Claude, Gemini, Grok and Microsoft Copilot now search during a chat as well, and Google and Bing place AI-written summaries above their ordinary results for many queries.

The appeal is speed. A question that used to mean opening six tabs, such as how two laptops compare or what changed in a tax rule this year, now takes one reply. The cost is that you are trusting a summary. The engine chooses which pages to read, which sentences to keep and how to join them, and any of those steps can go wrong without the answer looking any less confident.

Citations are what make an answer engine checkable, so use them. Open the source linked to the claim you care about and find the sentence it came from. Check the date on the page, since searches often surface an old article that has since been corrected. Prefer primary sources such as the official documentation, the government page or the original study over a blog post that summarizes them. When a reply has no link for an important claim, treat that claim as unverified.

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9 AI search tools in answer engines

Perplexity

by Perplexity AI

Answer engine that searches the web for each question and writes a reply with numbered links to the pages it used.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

ChatGPT

by OpenAI

OpenAI's assistant, which can search the web during a chat and show links to the pages behind its answer.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

Google Search

by Google

The largest web search engine, which now places AI-written overviews with source links above many results.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

Microsoft Copilot

by Microsoft

Microsoft's consumer assistant that answers with web results from Bing and links to its sources.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

You.com

AI search and research assistant that writes cited answers and lets you pick between several AI models.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

Claude

by Anthropic

Anthropic's assistant, which can search the web when you ask and cite the pages it read.

  • Shows sources with answers
  • AI-written answers
  • Free to use or free plan

Bing

by Microsoft

Microsoft's web search engine, with AI-generated answers and a Copilot chat mode alongside regular results.

  • AI-written answers
  • Free to use or free plan
  • Mobile app

Gemini

by Google

Google's assistant, which draws on Google Search for current topics and can check its reply against search results.

  • AI-written answers
  • Free to use or free plan
  • Developer API

Grok

by xAI

xAI's assistant, which searches the web and posts on X to answer questions about current events.

  • AI-written answers
  • Free to use or free plan
  • Developer API

It also helps to know what happens to your questions. Most of these tools keep a history of your chats tied to your account, and some use conversations to improve their models unless you turn that off in settings. Search queries may be sent to a partner search provider as well. If you ask about anything personal, medical or work-related, read the privacy settings first and use a private or temporary chat mode where one exists.

Each engine has its own habits. Some lean on a small number of large sites, some search more widely, and some write long replies where a short one would do. The quickest way to choose is to ask the same three or four questions you would normally search for and compare the answers and the sources side by side.

A good test question is one you already know the answer to, with a detail that is easy to get wrong, such as a recent rule change or a product spec that varies by model. Watch whether the engine gets the detail right, whether it links to a page that actually says so, and whether it admits uncertainty when sources disagree. Repeat the test now and then, because engines change their models and search partners often.

Questions about answer engines

Are AI answer engines accurate?

Often, but not always. They can misread a source, mix up two pages or rely on an outdated article. Check the cited page for any claim that matters, and prefer official or primary sources for health, legal, money and travel questions.

How do I check an AI answer's citations?

Click the link attached to the claim, find the sentence it came from and make sure it says the same thing. Look at the page date and who published it. If a claim has no citation, verify it elsewhere before relying on it.

Do these tools save my questions?

Most keep a chat history linked to your account, and some use conversations to train models unless you opt out. Check each tool's privacy settings, and use a temporary or private chat for sensitive questions.

Is an answer engine better than a normal search engine?

It depends on the task. Answer engines are faster for questions that need a summary. A normal results page is better when you want to pick sources yourself, find a specific site, or see a range of views.

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