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Vespa vs Amgix: catalog facts
Vespa	Amgix
Freemium Free and open source to self-host; Vespa Cloud is a paid service with a free trial.	Free Free and open source under AGPL-3.0.
Web, Self-hosted	Self-hosted
Text, vector and hybrid retrieval with ranking in one engine Runs machine-learned models at query time	Single REST API for ingestion, embedding and hybrid retrieval Server-side fusion of dense, sparse and keyword search
Aimed at engineering teams rather than individual users Larger setup and learning effort than simpler search servers	Young project with a very small community Aimed at developers integrating search, not end users
Self-hosted, Hosted service	Self-hosted
Open source	Open source
License: Apache-2.0	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.