Side by side

Amazon Kendra vs Milvus

Both stand on ai search and discovery platforms software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Amazon Kendra

Free trial APIWeb

Kendra combines search, source connectors, analytics, and document enrichment, with retrieval features for generative AI workflows. Check regional availability and document-size limits alongside the plan details before selecting it.

Visit Amazon Kendra

Milvus

Free plan APILinuxSelf-hosted

Milvus offers a free, open-source path from local vector search to large distributed deployments. Choose a deployment with its documented scale recommendations in mind, especially since Standalone cannot be upgraded online to a cluster.

Visit Milvus

The facts

	Amazon Kendra	Milvus
Free plan	A free trial	Yes
Open source	Not published	Not published
Runs on	API, Web	API, Linux, Self-hosted
Lowest paid plan	See the plans	Free or on request
Plans published	4	1
Maker	Not published	Not published
Website	aws.amazon.com	milvus.io
On ai search and discovery platforms software	#12 of 28	#8 of 28

Amazon Kendra: what it does well

Answers natural-language questions and finds curated FAQs.
Native connectors include six listed services.
Experience Builder supports no-code search application creation.
Encrypts data in transit and at rest.

What to know first

No free plan is listed.
GenAI Enterprise Edition indexes have a four-region limit.
Connector-ingested documents are limited to 50 MB.

Milvus: what it does well

Supports hybrid, full-text and approximate nearest-neighbor search.
Three deployment options cover different dataset sizes.
Lite supports local search without a cloud service.
Provides authentication, TLS and role-based access control.

What to know first

Online upgrade from Standalone to a cluster is unsupported.
Rust SDK is still under development.
Default 3.x deployment uses Woodpecker, etcd and MinIO.

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