Redis describes itself as the world's fastest in-memory database, offering cloud and on premise solutions for caching, vector search, and NoSQL databases that fit into an existing tech stack.

Redis Open Source is written in ANSI C and runs on POSIX systems including Linux, BSD, and macOS, available under the Redis Source Available License 2.0 or the Server Side Public License v1. The commercial offerings are Redis Cloud, described as fully managed and fully flexible, and Redis Software for on premise deployment, alongside Redis Enterprise.

More recent work targets AI workloads, including Redis LangCache for saving tokens on common questions, Redis Context Retriever, Redis Agent Memory for consistent agent experiences, Redis Data Integration for change data capture across structured data, and Redis Flex.

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