Top 2 Self-Hosted Open-Source Alternatives to Pinecone Vector DB (2026)
Pinecone Vector DB costs Standard Pod / Serverless (~$70–$220/mo) ($70/mo or $840/year for 10 seats). Switch to one of the verified open-source Docker replacements below.
Qdrant
High-performance Rust vector similarity search engine and vector database with quantization
- ✓Scalar & binary quantization cuts RAM usage by 90%
- ✓Rich JSON payload filtering
- ✓Built-in Web UI dashboard on port 6333
qdrant/qdrant:latest
TCO & Docker Compose →
pgvector (PostgreSQL)
Store OpenAI/Ollama vector embeddings right inside your existing PostgreSQL database with ACID guarantees
- ✓Zero extra infrastructure—runs inside Postgres 16
- ✓HNSW & IVFFlat indexing
- ✓Join relational user data with vector search in 1 SQL query
pgvector/pgvector:pg16
TCO & Docker Compose →