Chroma

Chroma is an open-source search and retrieval database and serverless platform for AI applications that delivers fast, scalable search supporting vector, semantic similarity, sparse vector, lexical (BM25, SPLADE), full-text, trigram, regex, and metadata search, along with features like forking, a CLI, and TypeScript, Python, and Rust clients. It targets developers (including millions of developers) and enterprises, offers $5 in free credits to get started and Serverless pricing with Pro and Enterprise plans, and differentiates itself with an Apache 2.0 open-source architecture built on object storage with automatic query-aware data tiering and caching, a zero-ops/serverless model, and enterprise options such as BYOC in your VPC and multi-region replication.