PricingFree (1 starter index, 2GB storage)$50/mo Standard (usage-based)Custom Enterprise
Free (self-hosted, Apache 2.0)Free Tier (1GB cluster)Standard Tier (usage-based)Premium Tier (minimum spend required)
SDK Languagespythonjavascripttypescriptgojava
pythonjavascripttypescriptrustgojavacsharp
Frameworkslangchainllamaindexvercel-aiopenai-agentshaystack
langchainllamaindexvercel-aiopenai-agentshaystackdspy
Best ForProduction RAG and agent memory at scale — serverless billing, generous free tier, and a managed experience with zero ops
High-performance vector search with rich payload filtering — Rust-written, predictable latency, and a clean self-hosted path
LimitationsCloud-only with no self-hosted option; vendor lock-in on proprietary index format; advanced features like dedicated read nodes add cost quickly at scale
No built-in embedding generation — bring your own embeddings; managed cloud is younger than Pinecone's; fewer turnkey RAG modules than Weaviate