Free and open first
Best Ai Search Tools in 2026
These AI search tools locate information, search selected sources, and link knowledge to produce answers. The services listed run on the web, via APIs, on iOS and Android, as browser extensions, or on macOS.
- 21 apps
- Research read 10 Oct 2026
- How the order is worked out
- 1
Consensus
Free plan AndroidAPIExtension+2Consensus combines broad academic search with filters, research workflows, and citations linked to paper passages.
- 2
Gemini Notebook
Free plan AndroidiPhoneWebGemini Notebook combines source-grounded answers with study and audio-generation tools. Check the Free plan’s daily limits and the Keep Activity requirement for certain features before choosing it.
- 3
Elicit
Free plan APIWebElicit brings paper search, document-based workflows, and cited outputs into one research assistant. The free Basic plan has usage limits, while API access is reserved for Pro and higher.
- 4
Google AI Mode
Free plan AndroidiPhoneWebAI Mode combines search links and AI responses with varied input options, follow-up searches and interactive visuals.
- 5
Microsoft Copilot
by Microsoft CopilotFree plan WebWindowsMac+2Copilot offers a free entry point and paid Microsoft 365 plans with different levels of AI usage and bundled apps. Compare the plan-specific usage, storage, and family access terms before subscribing.
- 6
Scite
Free plan APIExtensionWebScite combines citation classification, literature search, manuscript checking, and collection alerts in one service. Its free plan offers a way to start, while advanced access requires a paid plan.
- 7
Semantic Scholar
Free plan APIExtensionWebSemantic Scholar combines paper discovery with saved libraries, reading aids, and an API at no cost.
- 8
You.com
Free plan AndroidAPIiPhone+1You.com groups web search, extraction, research, and grounded-answer APIs for developer applications.
- 9
Sana AI
Free plan iPhoneWebSana Agents combines organizational knowledge access with task automation, integrations, and meeting recordings.
- 10
Komo Search
Free plan WebKomo Search offers a free tier with daily credits, focus modes, and search history. Users who need deep research or premium models must move beyond the Free plan.
- 11
Dropbox Dash
Free trial AndroidAPIExtension+4Dropbox Dash brings cross-app search, sourced answers, and shared Stacks into a cloud workspace. Review its paid starting price and possible future connected-item limit before choosing it.
- 12
Amazon Kendra
Free trial APIWebKendra combines search, source connectors, analytics, and document enrichment, with retrieval features for generative AI workflows.
- 13
- 14
Google Vertex AI Search
Free trial AndroidAPIiPhone+1Agent Search offers broad data-source coverage, semantic retrieval, and generated answers for web and mobile experiences. Its paid query pricing and trial limits are central planning considerations.
- 15
Exa
Free plan - 16
- 17
- 18
Hebbia
Paid APIiPhoneWebChoose Hebbia if your institution needs finance-focused AI, traceable analysis, or workflows built around firm processes.
- 19
Glean Agent Builder
Paid WebGlean Agent Builder offers visual workflow creation, model choices, and connections to enterprise data under organizational permissions.
- 20
Sinequa
Paid Self-hostedWebSinequa combines enterprise search, assistants, and agents with permission-aware access to organizational data.
- 21
Kagi Search
Paid AndroidWebKagi Search offers a trial and paid tiers with different search allowances. Starter has a monthly cap; Professional and Ultimate include unlimited searches at higher listed prices.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Review free plans, trial periods, entry prices, search coverage, source citations, knowledge connectors, team features, browser extensions, and API availability. If you need to read or change code, check the licence terms before choosing.
Questions
Which AI search tools have a free plan?
Free plans are listed for Consensus, Elicit, Exa, Gemini Notebook, and Google AI Mode.
Which tools offer a free trial?
Amazon Kendra and Dropbox Dash show 30-day trial periods.
What does Amazon Kendra cost?
Amazon Kendra lists pricing from $1.12 and a 30-day trial. It does not list a free plan.
Can I use these tools through an API?
API access is a comparison point for this category. Check the individual tool details for availability.
What platforms are covered?
The listed access options are web, API, iOS, Android, browser extension, and macOS.