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Vespa
Distributed AI search platform for retrieval, ranking, and inference
As of 29 August 2026, Vespa is free to use. Vespa is an open-source distributed serving engine that unifies vector search, text retrieval, machine learning ranking, and real-time inference. Softwr lists it under Databases. Vespa is made by Vespa.ai AS, launched in 2023, available on Web, Self-hosted.
Overview
What Vespa does
Vespa is a distributed serving engine that enables organizations to query, organize, and make inferences across vectors, tensors, text and structured data at scale. The platform unifies retrieval, ranking, and ML inference in a single system, supporting billions of data items and thousands of queries per second with sub-100 millisecond latencies. Vespa originated from a web search engine built at Yahoo! over 20 years ago and was open-sourced in 2017, evolving to handle modern generative AI workloads including retrieval-augmented generation (RAG), semantic search, and recommendation engines. The company provides both open-source and fully managed cloud options, allowing enterprises in digital commerce, financial services, media, and life sciences to deploy advanced search applications without managing complex infrastructure.
What people use it for
- Build RAG systems with semantic search over documents
- Power e-commerce search with ML ranking
- Create recommendation engines for personalization
- Implement real-time search for news or feeds
- Deploy private semantic search over sensitive data
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Vespa.
- Pricing not publicly listed, requires contacting sales
- Steeper learning curve compared to simpler search tools
- Operational complexity for self-hosted deployments
- Smaller ecosystem compared to cloud-native alternatives
Cross-shopped
What people choose instead of Vespa
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- VespavsWeaviate
Weaviate: Open-source vector database with cloud hosting option
- VespavsMilvus
Milvus: Open-source vector database by Zilliz for scalable search
Capabilities
Features
Vector search
Semantic search on billions of vectors
Text and structured search
Hybrid search across multiple data types
Machine-learned ranking
Distributed ML inference for ranking results
Real-time serving
Sub-100ms latency with continuous deployment
SQL interface
Query in Vespa Query Language (YQL)
Automatic scaling
Horizontal scaling without downtime
Open-source
Apache 2.0 licensed with active community
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
Is Vespa open-source?
Yes, Vespa is open-source under the Apache 2.0 license. The code is available on GitHub, and you can self-host or use the managed cloud service.
SourceWhat latency can Vespa achieve?
Vespa is designed for sub-100 millisecond latencies with thousands of queries per second, suitable for real-time search and recommendation applications.
SourceDoes Vespa support vector search?
Yes, Vespa provides native vector search capabilities alongside text, structured data, and tensor operations for building comprehensive search and AI applications.
SourceWhat is the pricing model for Vespa Cloud?
Vespa Cloud pricing is not publicly listed and requires contacting their sales team to discuss your specific use case and scale requirements.
SourceBehind it
Who makes Vespa
- Company
- Vespa.ai AS
- Based in
- Trondheim, Norway
- Founders
- Jon Bratseth, Kim Omar Johansen, Frode Lundgren
Timeline
Vespa over time
- Funding2023-11-01
Raised $31M Series A from Blossom Capital as corporate spinout from Yahoo
Source
Keep looking
Where to go from Vespa
- Vespa alternativesEvery product people weigh against it
- Vespa pricingPlans, floors and what the tiers exclude
- Vespa badgesWhich rules it meets, and the figure behind each
- All Databases softwareThe full category
- Best Databases softwareThe shortlist, and how it was cut
Best Databases software for
Compare Vespa with
- Zilliz
- Elasticsearch
- Meilisearch
- Typesense
- SurrealDB
- OpenSearch
- Apache Solr
- Marqo
- Chroma
- Qdrant
- Materialize
- Estuary
- Fivetran HVR
- Grist
- IBM Db2
- Instaclustr
- Knack
- LanceDB
Other Databases software
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Free plan9 researched notesOpen-source search and analytics suite forked from Elasticsearch
Open source9 researched notesApache 2.0 vector and full-text search engine that runs as an embedded library, a single server or a distributed cloud service.
Free plan14 researched notesHigh-performance vector database for similarity search and embedding-based retrieval
Free plan13 researched notesLive context layer for AI agents using real-time SQL transformations
Free, then $1.5/compute-credit10 researched notesReal-time data integration combining streaming, CDC, and batch
Free, then $0.5/GB10 researched notesLog-based change data capture for database replication and synchronization
9 researched notesThe AI-powered database built for demanding enterprise workloads
Free, then $99/mo14 researched notesNetApp-owned managed service for Cassandra, Kafka, OpenSearch, PostgreSQL and Cadence with a bring-your-own-cloud model
Pricing on request12 researched notesHosted no-code database and web app builder priced by stored records and storage, with unlimited user accounts on every plan.
From $59/mo14 researched notesEmbedded retrieval library over the Apache 2.0 Lance columnar format, with proprietary Cloud and Enterprise tiers for serving at scale.
Pricing on request14 researched notes
Softwr does not host reviews and shows no star rating for Vespa, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
More on Vespa
Vespa alternatives
What people switch to, and what they give up
Vespa pricing
Every tier, and where the cost actually lands
Compare Vespa
Put it head to head with anything we hold
Vespa badge
Its rating, and an embed for your own site
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