Related: shares the task Search
Retrieval infrastructure with an open-source database and serverless cloud search.
Freemium
Use cases
- Semantic retrieval for RAG
- Search over embedded application data
Pricing: The open-source database can run locally. Cloud Starter has a USD 0 monthly platform fee with USD 5 credits; writes, stored data, queried data and returned network traffic are metered separately, so zero base fee does not mean unlimited cloud usage.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Search
Multimodal data platform and embedded retrieval library built around Lance tables.
Open (open weights/source)
Use cases
- Semantic retrieval for RAG
- Search over embedded application data
Pricing: Self-hosting the open-source project and buying the hosted platform are separate choices. The hosted service has its own plans and usage limits; self-hosting still requires infrastructure and any model-provider charges.
Documentation ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Search
Vector search engine for semantic retrieval with payload filters and hybrid query support.
Freemium
Use cases
- Semantic retrieval for RAG
- Search over embedded application data
Pricing: Open-source Qdrant can be self-hosted. Cloud Free includes 1 GB RAM and 4 GB disk; Standard is resource-based for a dedicated cluster. Embedding-provider costs and larger-cluster charges are separate from the free database tier.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Search
Object-storage-native search engine for vector and full-text retrieval with cached compute.
Paid
Use cases
- Semantic retrieval for RAG
- Search over embedded application data
Pricing: Launch has a USD 16 monthly minimum usage charge. Storage, writes, queries and namespace counts contribute to the bill; higher plans add governance and support, so a minimum is not an all-inclusive flat subscription.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Search
Search and ranking platform combining vector retrieval, lexical search and model-based relevance.
Open (open weights/source)
Use cases
- Semantic retrieval for RAG
- Search over embedded application data
Pricing: Vespa can be self-hosted as open-source software. Vespa Cloud is resource-priced using the official calculator and offers a trial; node resources, storage and applicable traffic costs should be assessed separately from free trial access.
Pricing ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Search
Conversational AI search engine that answers questions and summarizes pages instead of showing ad-driven links.
Free
Use cases
- Getting quick factual answers without wading through ads
- Summarizing articles and web pages while browsing results
- Searching privately without tracking
Pricing: Andi is free to use, with no advertising.
Sources
This record was last reviewed on 2026-09-10.
Related: shares the task Search
AI-powered web browser from Perplexity with a built-in assistant that answers questions and performs tasks across pages.
Freemium
Use cases
- Researching topics across multiple tabs with AI summaries
- Automating routine browsing tasks
- Replacing separate search and chat tools with one browser
Pricing: Comet is free to use; higher usage limits and premium features come with paid Perplexity subscriptions.
Sources
This record was last reviewed on 2026-09-10.
Related: shares the task Search
AI answer engine that finds and summarizes findings from peer-reviewed scientific research papers.
Freemium
Use cases
- Literature review and evidence gathering
- Answering health and science questions with citations
- Academic and clinical research support
Pricing: A free tier is available; paid plans add unlimited searches and advanced analysis features.
Sources
This record was last reviewed on 2026-09-10.