Limits

General API limits

• 1500 requests per second per account
• 10 concurrent PUT or COPY requests to any individual object in a bucket
• 800 total requests per second per bucket

Specific limits

• Max count of buckets per account is 100
• Max size of single object upload via PUT request is 5 GB
• Max size of single part upload of a multi-part upload is 5 GB
• Max size of single part upload of a multi-part upload is 5 MiB, except for the final part
• Max count of parts of a multi-part upload is 10,000
• Max size of a completed multi-part upload is 5 TiB
• Max count of objects per bucket is 50 million