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Best AI Search and Discovery Platforms Software in 2026

AI search and discovery software lets you build search, recommendation, discovery, and related functions into websites or applications. This list covers services and deployable platforms available on the web, through APIs, or on systems such as Linux, Android, iOS, and self-hosted setups.

  1. 1

    Vespa

    Free plan Open source APILinuxMac+3

    Vespa offers varied search and ranking methods alongside self-managed and cloud deployment paths.

    8.6 From $0.05 Visit site
  2. 2

    Algolia

    Free plan AndroidAPIExtension+2

    Algolia pairs search APIs and developer libraries with tools for ranking, personalization, analytics, and merchandising.

    7.7 Free plan Visit site
  3. 3

    Azure AI Speech

    by Azure AI Speech
    Free plan APISelf-hostedWeb
    7.5 Free plan Visit site
  4. 4

    Meilisearch

    Free plan APILinuxMac+3

    Meilisearch offers multiple search approaches and deployment choices, with a free self-hosted option and paid cloud service.

    7.2 Free plan · paid from $20/mo · 14-day trial Visit site
  5. 5

    OpenSearch

    by OpenSearch
    Free plan APILinuxMac+3

    OpenSearch provides a free search and analytics suite with ingestion, visualization, and machine-learning capabilities.

    7.1 Open source Visit site
  6. 6

    Pinecone

    by Pinecone
    Free plan APILinuxMac+1

    Pinecone combines managed vector search capabilities with multiple index types, integrations and stated security controls.

    7.1 Free plan · paid from $20/mo · 21-day trial Visit site
  7. 7

    Qdrant

    by Qdrant
    Free plan APILinuxMac+3

    Qdrant offers flexible vector storage and retrieval, with APIs, client libraries, integrations, and cloud or local deployment.

    7.1 Free plan Visit site
  8. 8

    Milvus

    Free plan APILinuxSelf-hosted

    Milvus offers a free, open-source path from local vector search to large distributed deployments.

    7.0 Free plan Visit site
  9. 9

    Weaviate

    by Weaviate
    Free plan APILinuxSelf-hosted+1

    Weaviate offers vector search infrastructure with hybrid search and both hosted and self-managed deployment.

    6.9 Free plan · paid from $45/mo Visit site
  10. 10

    Fast Simon

    by Fast Simon Inc.
    Free plan WebiPhoneAndroid+1
    6.6 Free plan · pricing on request Visit site
  11. 11

    AddSearch

    Free trial APIWeb

    AddSearch offers a broad search stack, from managed widgets to APIs and AI features.

    6.3 14-day trial Visit site
  12. 12

    Amazon Kendra

    Free trial APIWeb

    Kendra combines search, source connectors, analytics, and document enrichment, with retrieval features for generative AI workflows.

    6.2 From $1.12 · 30-day trial Visit site
  13. 13

    Google Vertex AI Search

    Free trial AndroidAPIiPhone+1

    Agent 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.

    6.2 From $1.50 Visit site
  14. 14

    Coveo

    by Coveo
    Free trial APIWeb

    Choose Coveo when an organization needs enterprise search, recommendations, or product discovery across customer, employee, service, or commerce experiences.

    6.1 Pricing on request Visit site
  15. 15

    Doofinder

    Free trial APIWeb

    Doofinder brings search, recommendations, merchandising, and conversational features into one ecommerce platform. Its request-based plans and paid-only model should be checked against expected usage.

    6.1 Visit site
  16. 16

    Constructor

    Paid AndroidAPIiPhone+1

    Constructor brings product discovery, shopper personalization, and merchandising tools together for retail ecommerce.

    6.0 Pricing on request Visit site
  17. 17

    Elastic Cloud Enterprise

    Paid APILinuxSelf-hosted+1

    ECE provides centralized management and high-availability features for self-managed Elasticsearch clusters across several deployment environments.

    5.9 Pricing on request Visit site
  18. 18

    Luigi's Box

    Free trial APIWeb

    Luigi’s Box combines search, merchandising, recommendations and analytics for catalog-based businesses.

    5.9 Pricing on request · 30-day trial Visit site
  19. 19

    FactFinder

    Paid APIWeb

    Choose FactFinder if your eCommerce operation needs product discovery with merchandising controls, analytics and support for complex catalogs or B2B pricing.

    5.5 Pricing on request Visit site
  20. 20

    HawkSearch

    Paid APIWeb

    HawkSearch combines AI search responses with catalog merchandising, product discovery, integrations, and developer APIs.

    5.4 From $500/mo Visit site
  21. 21

    Glean Agent Builder

    Paid Web

    Glean Agent Builder offers visual workflow creation, model choices, and connections to enterprise data under organizational permissions.

    5.3 Pricing on request Visit site
  22. 22

    Syte

    Paid AndroidAPIWeb

    Syte combines visual search, recommendations, tagging, and merchandising in one platform.

    5.3 From $2,000/mo Visit site
  23. 23

    LupaSearch

    Paid APIWeb

    Choose LupaSearch if your ecommerce business needs intent-aware product search, merchandising controls, and search analytics.

    5.1 Pricing on request Visit site
  24. 24

    Unbxd

    Paid AndroidAPIiPhone+1

    Netcore Unbxd combines search, catalog enrichment, merchandising, and omnichannel features for ecommerce retailers. Pricing is on request, so contact sales or schedule a demo to discuss it.

    5.1 Pricing on request Visit site
  25. 25

    Marqo

    Paid APIWeb

    Marqo combines several ecommerce discovery functions, from personalized search to conversational product suggestions. Its pricing is not published, so interested teams need to request details.

    5.0 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free plans, trial periods, paid starting points, and open-source licences before choosing. Review data-source connections, semantic search, recommendation tools, personalized results, search analytics, and deployment choices that suit your project.

Questions

Are free plans available?

Yes. Algolia and Fast Simon are examples on this list with free plans. Other products use paid plans or pricing on request.

Can I try a platform before paying?

Trial terms differ: AddSearch gives 14 days, Amazon Kendra gives 30 days, and Doofinder provides a free trial.

Are any of these platforms open source?

Open-source code is available from items on this list. Check the licence and deployment terms for the specific tool you are considering.

Which deployment options are available?

The list includes web and API services as well as self-hosted options. Linux, Android, and iOS support also appears in the list.

What features should I compare?

Compare semantic search, connectable data sources, recommendations, personalized results, search analytics, free plans, and paid starting prices.

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