* S3 Intelligent-Tiering can store objects smaller than 128 KB, but auto-tiering has a minimum eligible object size of 128 KB. These smaller objects will not be monitored and will always be charged at the Frequent Access tier rates, with no monitoring and automation charge. For each object archived to the Archive Access tier or Deep Archive Access tier in S3 Intelligent-Tiering, Amazon S3 uses 8 KB of storage for the name of the object and other metadata (billed at S3 Standard storage rates)...| Amazon Web Services, Inc.