01
Pinecone
Managed vector database for semantic search at scale
Pinecone is a fully managed vector database built for AI. Writes are instantly searchable, indexing is automatic, and queries stay fast at any scale.
94.0
Best RAG platforms with a free plan in 2026
10 ranked, with a plain verdict on every entry.
Pinecone ranks first among the top 10 RAG platforms with a free plan in 2026, with a Lister Score of 94.0.
Pinecone takes the top spot on this list for production applications at any scale, and offers governed access with encryption at rest and in transit. SiliconFlow is built for developers requiring flexible deployment options, and provides one API for all models that is fully OpenAI-compatible. Weaviate serves AI teams building production applications.RANKENTRYSCORETRENDFROM
1PineconePinecone is a fully managed vector database built for AI94.0NEW$0 (free tier), Starter $25/month
PineconePinecone is a fully managed vector database built for AI94.0NEW$0 (free tier), Starter $25/month3
WeaviateThe AI tool stores and searches high-dimensional vectors at any scale90.0NEWFree (open-source), Weaviate Cloud $99/month
WeaviateThe AI tool stores and searches high-dimensional vectors at any scale90.0NEWFree (open-source), Weaviate Cloud $99/month5
QdrantThe AI tool supports native hybrid search blending keyword and vector queries88.0NEWFree (open-source), Cloud service $25/month
QdrantThe AI tool supports native hybrid search blending keyword and vector queries88.0NEWFree (open-source), Cloud service $25/monthCURATED · UPDATED REGULARLY
The ranking, in detail
02
SiliconFlow
One platform for all your AI inference needs
SiliconFlow is an AI infrastructure platform providing high-speed inference for large language and multimodal models. It offers a unified API compatible with OpenAI standards to support diverse development needs.
90.0
03
Weaviate
Open-source vector search platform with GraphQL API
Weaviate is an open-source vector database platform supporting search, RAG, and agents. It provides a unified foundation for building scalable AI experiences.
90.0
04
Memori
Agent-native memory infrastructure
Memori is an LLM-agnostic layer that converts agent execution into structured state. It provides persistent memory infrastructure for production AI systems.
88.0
05
Qdrant
Vector search engine optimised for extended filtering and production workloads
Qdrant is a high-performance vector search engine built in Rust. It helps developers build AI retrieval systems at any scale.
88.0
06
Supavec
Bring your own data to any LLM
Supavec is an open-source RAG as a Service platform. It allows users to bring their own data to any LLM via an instant API.
88.0
07
Vectara
Unify data. Deliver context. Trust every answer.
Vectara is an enterprise AI platform that turns complex, multimodal data into actionable intelligence. It powers intelligent, managed agents to drive better business outcomes.
88.0
08
Flowise
Build AI agents visually
Flowise is an open-source platform for building AI agents visually. It enables the creation of agentic systems through modular building blocks.
86.0
09
RAGFlow
Build a superior context layer for AI agents
RAGFlow is an open-source RAG engine that empowers AI agents with reliable context. It delivers an integrated agent platform built specifically for enterprise use.
86.0
10
Babelscape
Language generation and semantic grounding for multilingual AI solutions
Babelscape focuses on multilingual natural language processing to overcome language barriers and enable text understanding across various applications.
80.0
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Positions 1, 2 and 3 are available to buy for twelve months.
Frequently asked questions
What is the best RAG platforms with a free plan?
Pinecone ranks first on Lister. Pinecone is a fully managed vector database built for AI. Writes are instantly searchable, indexing is automatic, and queries stay fast at any scale.
What are the top 10 RAG platforms with a free plan?
1. Pinecone; 2. SiliconFlow; 3. Weaviate; 4. Memori; 5. Qdrant; 6. Supavec; 7. Vectara; 8. Flowise; 9. RAGFlow; 10. Babelscape.
Are there free options for RAG platforms with a free plan?
Pinecone, Weaviate, Qdrant list a free option in the recorded pricing. Check the provider's current terms and limits.
What do the top four say they are built for?
Pinecone says it is built for production applications at any scale, and SiliconFlow for developers requiring flexible deployment options. Weaviate says it is built for AI teams building production applications, and Memori for production AI teams.
