AWS CLI v1 entered maintenance mode on August 5, 2026 and will reach end-of-support on July 15, 2027. During maintenance mode, releases are limited to critical bug fixes and security issues. AWS CLI v1 will not receive API updates for new or existing services, or be updated to support new regions. For more information, see the maintenance mode announcement.
We recommend that you migrate to AWS CLI version 2. See the installation instructions and migration guide.
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Amazon S3 vector buckets are a bucket type to store and search vectors with sub-second search times. They are designed to provide dedicated API operations for you to interact with vectors to do similarity search. Within a vector bucket, you use a vector index to organize and logically group your vector data. When you make a write or read request, you direct it to a single vector index. You store your vector data as vectors. A vector contains a key (a name that you assign), a multi-dimensional vector, and, optionally, metadata that describes a vector. The key uniquely identifies the vector in a vector index.