Amazon S3 increases the maximum object size to 50 TB

Posted on: Dec 2, 2025

Amazon S3 increased the maximum object size to 50 TB, a 10x increase from the previous 5 TB limit. This simplifies the processing of large objects such as high-resolution videos, seismic data files, AI training datasets and more. You can store 50 TB objects in all S3 storage classes and use them with all S3 features.

Optimize upload and download performance for your large objects by using the latest AWS Common Runtime (CRT) and S3 Transfer Manager in the AWS SDK. You can apply S3's storage management capabilities to these objects. For example, use S3 Lifecycle to automatically archive infrequently accessed objects to S3 Glacier storage classes, or use S3 Replication to copy objects across AWS accounts or Regions.

Amazon S3 supports objects up to 50 TB in all AWS Regions. To learn more about working with large objects, visit the S3 User Guide