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Emerging AI-based search systems often leverage large language models to generate explanations, synthesize content from multiple sources, or persuasively summarize selected web pages. The AI search systems described below vary in when they provide LLM-assisted results (from only when you request them to every time) and in how much control you have over whether AI is used (from no control to fully customizable search settings).
Readers beware: The main problem with LLM is that the content may not always be 100% accurate. So go ahead and explore each of the five search systems listed, but be sure to verify any AI-generated responses.
Google’s AI overview: used for some searches
AI Overview Try to distill information from multiple sources into one relevant answer so you don’t have to sift through page after page of links. Or, as a Google employee describes it, AI Overview Let “Google do the Googling for you.”
Like all the tools on this list, it’s new. Google announced AI Overview, formerly known as Search build experienceexist Google I/O 2024.
Initially, AI overviews are most likely to appear in searches that help with brainstorming, planning, or understanding. For example, the screenshot shows an explanation generated for the sample query, “What are the odds of seeing a shooting star?” Notice that this response includes some related links after the first paragraph.
Google is rolling out AI Overviews as a feature of the company’s free, ad-supported search service available on the web and in mobile apps. The feature is available only for some searches.
Confused: Every search is for Master of Laws
Puzzled Unlike Google’s AI Overview, Perplexity leverages AI to process each prompt. In some cases, especially when a query may be unclear, Perplexity pauses and prompts you for clarification; often, this allows the system to adjust the response to more accurately meet your question. Responses include easy-to-understand reference links to help verify sources.
The free account includes a limited number of standard and professional searches; choosing the professional option gives you better AI models, such as GPT-4o Instead of GPT-3.5. A paid upgrade to Perplexity Pro expands access to the AI system, such as GPT-4 Or Claude Opus. Perplexity is available on the web and in mobile apps.
Kagi Search: Using AI when you need it
Kaji Search The system relies on a variety of sources, including its own web and news indexes and Wolfram Alpha. Kagi does a lot of sifting and sorting of the data to provide relevant results.
Kagi offers three different AI-driven services:
- Quick answer: Aggregates a set of search results. This option is optional and appears as a menu item along with the other filtering and sorting options.
- Summary: Create summaries from web links or text.
- FastGPT: As a standard AI chatbot, but only responding to single queries, unlike the following services: ChatGPTsupporting a range of questions and answers.
Kagi Search is free to try for up to 100 searches, and for additional use you can purchase a paid plan.
Arc Search: AI-Powered Mobile Search
Made by browser companies, Arc Search Arc Search is a search-centric, AI-powered iPhone app. Arc Search includes the following three AI features:
- Browse for me: Takes your search term (or hint) and uses AI to generate a response from several pages of search results. This changes the search experience from opening a series of sequential links and then reading the results, to viewing the results first and then selectively opening links.
- To sum up: In contrast, this feature uses artificial BroadCast Unitedligence to capture key points on a single web page.
- Raise Call: Lets you speak your search and receive responses read out by synthesized voice.
Additionally, you can set Kagi or Perplexity (among other options) as the secondary search engine for your system, which otherwise defaults to Google.
Exa: Search for LLMs and People
Exa Exa is primarily focused on meeting the search needs of large language models for AI, but it also provides a browser interface for people. Exa works best when you structure your search as a statement. For example, “This is how startup founders handle time management,” rather than using a string of keywords or questions. (If you type a question, a setting allows the system to automatically restructure your prompt.)
Exa provides information that you might need to browse multiple web pages repeatedly to obtain. For example, rather than showing users links to list articles, Exa aims to integrate content from those lists and link to the list.
Three more alternatives to standard search
Competition in the search space remains fierce. In addition to the above options, competitors include:
- Microsoft Co-pilot: Building on the company’s Bing search engine expertise, it offers free and paid AI search solutions.
- Grok: Elon Musk’s X has made Grok available to X Premium or Premium+ users in multiple countries. Grok is particularly useful when you want a summary of recent, widely discussed posts on X.
- Brave Software: supply”Answers with artificial BroadCast Unitedligence“In its independent search service, it also provides an artificial BroadCast Unitedligence assistant, Leoavailable in free and paid versions, is built into the Brave browser.
Which search services and apps do you use? Which of the above apps and services do you use regularly? Do you recommend other AI-driven search systems? Mention or leave me a comment on X (@awolber) Let me know how AI and LLM change the way you search.
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