Amazon Kendra

Highly accurate enterprise search service powered by machine learning.
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Kendra’s suggested answer

Amazon Kendra is a highly accurate and easy to use enterprise search service that’s powered by machine learning. Kendra delivers powerful natural language search capabilities to your websites and applications so your end users can more easily find the information they need within the vast amount of content spread across your company.

Key Benefits of Kendra

Ask natural language questions, get immediate answers

Use natural language questions instead of just simple keywords to get the answers you’re looking for, whether that is a precise answer, an FAQ, or an entire document. Say goodbye to sifting through long lists of links and hoping one has the information you need.


Bring all of your data together in a few clicks

Get rid of information silos. Kendra lets you easily add content from file systems, SharePoint, intranet sites, file sharing services, and more, into a centralized location so you can quickly search all of your information to find the best answer.


Constantly improving search results

Your results get better over time search, because Kendra’s machine learning algorithms learn which results your users find most valuable. You also have the option to fine-tune results by manually adjusting the importance of certain data sources or document freshness.

Get better answers upfront…

Use natural language questions instead of just simple keywords to get the answers you’re looking for. Kendra will connect the dots within your files to return answers, whether that is a text snippet, FAQ, or document. Instead of sifting through long lists of documents to find specific answers, Kendra can provide a suggested answer upfront. See the difference between the search experience before and after Kendra.

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…using natural language

Natural language enables you to get more specific answers from anywhere in your data. Ask questions like, “Is the IT help desk open at noon?” or “How do I connect to my VPN?” so you can get more precise answers.

Customer stories


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Accelerating material science research

“When our material scientists lead new research, they need access to information from prior relevant research—information that’s buried in the many patents we hold in our huge knowledge base… Kendra lets our scientists find the information they need by handling natural language queries quickly and accurately.”

View customer story »

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Making better and faster decisions on the job

"We’re now able to precisely search our most valuable project engineering documents, and will soon scale this across our entire documented knowledge base. Kendra finds the answer to questions like ‘What is the length of the pipeline at Pluto?’ quickly and accurately."

View customer story »

Bring all of your data together in a few clicks

Combine previously-siloed data sources into a central location, or index, with just a few clicks. Go from months of work to implementation in less than a week.

Learn more about easy deployment »

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Step 1: Create an index

Create an index where you'll add your data sources.

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Step 2: Add data sources

Use Kendra's connectors for popular sources like file systems, web sites, Box, DropBox, Salesforce, SharePoint, relational databases, and Amazon S3.

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Step 3: Test and deploy

Test the search experience directly in the console. Plus, access sample code for each component of the search experience so you can easily deploy to new or existing applications.

Constantly improving search results

Incremental learning

Kendra actively retrains deep learning models built for your data set and employee usage patterns to improve search accuracy. As end-users interact with search results, Kendra fine tunes its results. This means that if you click on a result or give it a ‘thumbs up’ or ‘thumbs down’, Kendra will learn which results are more relevant and surface those first.

Learn more about incremental learning »

Relevance tuning

Kendra gives you the option to manually tune relevance; you can boost certain fields in your index like document freshness, view counts, or specific data sources. For example, you could boost documents that are not only viewed more often but that are also more recent, like trending news or updates.

Learn more about relevance tuning »

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Natural language understanding for multiple domains

Kendra uses deep learning models to understand natural language queries and document content and structures for a wide range of internal use cases like HR, operations, support, and R&D. Kendra is also optimized to understand complex language from domains like IT, financial services, insurance, pharmaceuticals, industrial manufacturing, oil and gas, legal, media and entertainment, travel and hospitality, health, HR, news, telecommunications, mining, food and beverage, and automotive. This means that you can ask a question like “Can I add children as dependents on HMO?” and Kendra will provide answers related to your healthcare options.

Get started with Kendra today

Experience reimagined search for yourself. Kendra's Preview is easy to get started with and includes a 30 day free tier. You can connect your own data sources and start testing the search experience on your own content in minutes.

Kendra’s preview will not include incremental learning, query auto-completion, custom synonyms, or analytics. The preview will only offer connectors for SharePoint online, JDBC, and Amazon S3. It will be limited to a maximum of 40k queries per day, 100k documents indexed, and one index per account. See the Features and Pricing pages for more details.