Vespa
Vector & Search · Free + paid
Big data serving engine with ML integration
At a glance
- Made by
- Vespa.ai AS
- Korean
- None (English and a few others only)
- API
- Yes
- Available on
- Web, API
- Open source
- Apache 2.0
- GitHub
- 7,129 stars · Apache-2.0
What is Vespa?
Vespa lets you build search and AI applications by combining search, ranking, machine learning inference, and real-time updates in one platform. It can query, organize, and run inference over vector, tensor, text, and structured data, and is described as handling thousands of queries per second with latency under 100ms over billions of constantly changing data items. It distributes large amounts of data across multiple nodes and evaluates them in parallel, with high availability and high performance. You can deploy to Vespa Cloud or install and run it yourself.
- Vector, text, and structured search
- Distributed machine learning ranking (TensorFlow, ONNX, XGBoost, and LightGBM models)
- RAG using hybrid search, relevance models, and multi-vector
- Streaming search mode for personal data
- Auto-scaling and continuous deployment and upgrades
- Fully managed cloud with strong security
- Deploy in your own cloud (Enclave: AWS, Azure, GCP)
Who uses Vespa and for what
- Search applications and generative AI (RAG)
- Recommendation, personalization, and ad targeting
- Semi-structured navigation such as e-commerce
Pricing
What you get for free — Free trial available (limits unknown)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying. · Official pricing page
AI tools similar to Vespa (alternatives)
Vespa vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| Vespa | Free + paid | 0 | 2 | No | — | No |
| Elasticsearch | Free + paid | 0 | 2 | No | — | No |
| OpenSearch | Free + paid | 0 | 2 | No | — | No |
0 of these 3 tools have a free plan.
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
Vespa on AI Galaxy Map
- One of 12 AI tools in the Vector & Search field.
- Connected to 2 other tools — #7 in its field.
Frequently asked questions
Can I use Vespa for free?
Free trial available (limits unknown). Prices can change, so check the official site before paying.
What AI can I use instead of Vespa?
Tools that do the same job, such as Elasticsearch, OpenSearch, are connected to it on the map.
Can I use Vespa in Korean?
None (English and a few others only)
Sources (official pages)
- https://vespa.ai/pricing/
- https://vespa.ai
- https://github.com/vespa-engine/vespa
- https://docs.vespa.ai/
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.