Weaviate

Weaviate is a vector database with hybrid search, developed by Weaviate and available self-managed or as Weaviate Cloud. Buyers should read the licensing carefully. Most of the repository is under the BSD-3-Clause licence, an open-source licence, but files in the wl folder are under a commercial licence and require a key. The Enterprise Edition features need a licence key, so the binaries combine BSD community code with enterprise features that are not open source. The repository on GitHub was created in 2016. The latest release is v1.39.7, published on 25 September 2026. Cloud pricing starts with a free plan at $0, which covers 100,000 objects and one collection. The Flex plan starts from $45 a month, and the Premium plan is priced on request. The open-source code can be self-hosted without charge, but anyone intending to use the enterprise features should confirm the licence terms and cost with the vendor first. Weaviate suits teams that want to combine vector and keyword search in one engine and that accept a mixed licensing model. The project is active, with a release in late September 2026.