8 Best AI Search Engines of 2026

Google AI Mode turns Google Search into a conversation. According to Google's help center, it divides your question into subtopics and searches for each one at the same time, then returns an AI response with links to the web and room for follow-up questions. You can reach it at google.com/ai, from the AI Mode tab after a regular search, or on the Google app home screen, and you can ask by typing, talking, snapping a photo or uploading an image. Search Live adds a voice conversation with optional video, Personal Intelligence can draw on connected Google apps, and AI Mode can build interactive visuals for hard concepts. It is free, and Google AI Plus at $4.99 a month adds more access to Nano Banana in Search, while Google AI Pro at $19.99 raises access to Gemini 4 Argon and agentic features. The limits: Google labels AI Mode experimental, and some features, such as Deep Search, are only available in select countries.

Perplexity is the purest answer engine on this list. Its help center describes the loop plainly: it interprets the question, searches the web in real time, writes a short summary and attaches numbered citations that link to each source, so checking a claim takes one click. Follow-up questions keep the earlier context. The free plan includes a limited number of Pro Searches per day, which run deeper multi-source answers, and Research mode performs dozens of searches, reads hundreds of sources and returns a report in 2 to 4 minutes. Pro, at $17 a month or equivalent when billed annually, extends Pro Search, adds deep research, lets you choose between models such as GPT-6.1 Sol, Gemini 3.8 Flash, Claude Sonnet 5.5 and Grok 4.7, and adds the ability to create documents and apps. Max at $167 a month billed annually is for heavy users. The trade-offs: the strongest features sit behind Pro, and Perplexity does not publish an integration count for consumers.

ChatGPT search adds the open web to the assistant many people already use daily. OpenAI's help center says ChatGPT can search the web on its own when a question benefits from current information, or you can start a search from the tools menu or by typing / in the composer. Answers may include citations that open the source, the Sources panel lists cited pages and other relevant links, and on desktop web you can hover over a citation to preview it. It also uses general location from your IP address for local results such as restaurants, news and weather, and mobile results can include a map. Search is available on Free, Go, Plus, Pro, Business, Enterprise and Edu, and people who are not signed in can use it too. Go costs $8 a month in the US. The catches: searches count toward plan limits, OpenAI warns citations can be wrong, and ads may appear on Free and Go in the US.

Brave Search is the strongest free option for people who care about privacy and independence. Brave says it delivers results from its own built-from-scratch index rather than relying on Big Tech, and that it does not profile users. Its help center describes two AI layers. AI Answers gives a concise summary when you ask a question, with references to the sources behind the key claims. Ask Brave goes further: longer answers, follow-up questions in chat, a Deep Research mode for questions where thoroughness matters more than speed, and enrichments such as videos, news articles, products and local businesses next to the answer. Goggles let you rerank results with community-built rules, and the Brave Search API serves developers. The search engine is free in any browser at search.brave.com. Search results include privacy-preserving ads, and the ad-free Search Premium plan is only available in the Brave Browser. Brave does not document a choice of AI models for Ask Brave.

Microsoft has moved its AI search into two layers on Bing, replacing the earlier Copilot Search. AI Overviews puts a summarized answer at the top of the results page with links to check sources, which suits quick factual lookups. The AI Mode tab opens a deeper view with the query you already typed, where you can ask follow-up questions, view images and videos related to the search and open the references behind the answer. A Show all control lists every reference used, which makes source checking easier than on tools that show only a few links. Microsoft positions AI Overviews for finding key information quickly and AI Mode for complex questions and research. It is free in Bing, and heavier Copilot use comes with Microsoft 365 consumer plans. The limits: Microsoft says features vary by device, market and browser version, and it publishes little about the models behind AI Mode or its usage limits.

Kagi is a paid search engine, and that shapes everything about it. There are no ads, and the product is built around a classic results page with AI layered on top. Quick Answer summarizes the results across the returned pages and lists the pages it used, and it fires automatically if you end a query with a question mark, or when you press q. Kagi Assistant combines large language models from OpenAI, Anthropic, Google, Mistral, DeepSeek and others with optional Kagi Search results, plus custom assistants. Plans start with a trial of 100 searches and 100 AI interactions. Starter costs $5 a month plus tax for 300 searches and up to 300 AI interactions with standard models, Professional is $10 for unlimited searches and Kagi Assistant with standard models, and Ultimate at $25 adds Research mode and flagship models. Annual billing saves 10%. The downside is the lack of a free plan and a 300-search cap on Starter.

DuckDuckGo treats AI as an option rather than the main event. Search Assist, an optional feature in its results, scans the web for relevant content and generates a brief answer anonymously, and DuckDuckGo says each response links directly to one or two sources so you can read more. You can turn AI off at any time and keep plain results. Duck.ai, also free, lets you chat with popular AI models privately, and DuckDuckGo says those conversations are never used to train AI. Search, the browser extensions and the DuckDuckGo browser are free. The subscription Plus plan costs $9.99 a month or $99.99 a year and bundles a VPN, advanced AI models in Duck.ai, personal information removal and identity theft restoration. Pro, at $19.99 a month, adds top models such as Claude Opus 5.5 and higher limits. The drawback for answer seekers is depth: Search Assist answers are short, cite only one or two sources and lack a research mode.

Felo pairs AI search with tools to turn what you find into something you can share. The free Standard plan includes unlimited high-speed search and 3 file analyses a day, with no card required, though advanced models are limited and the Pro workspace is not included. Pro costs $14.99 billed monthly or $12.50 a month on the $149.99 annual plan and gives 15,000 credits a month plus 200 bonus credits a day, which Felo estimates at about 300 AI images, up to 500 slide pages or about 100 deep research tasks. When credits run out, Pro still includes 300 Pro searches a day. Pro also adds AI Slides, AI Designer, custom agents, X Research and Felo API access, and the interface is offered in more than 15 languages including Japanese, Korean and Arabic. The weak points: the credit model is harder to reason about than a flat plan, and Felo says less than Perplexity or Google about how answers are sourced.