
S3 Files beat EFS pricing: Why I'm switching now
Stop paying $0.30 per GB for EFS. S3 Files brings POSIX semantics to buckets, ending the need for fragile data sync pipelines.

Stop paying $0.30 per GB for EFS. S3 Files brings POSIX semantics to buckets, ending the need for fragile data sync pipelines.

Launched April 7, 2026, S3 Files merges object storage with NFS. Learn how to mount buckets on EKS for agentic AI without data duplication.

Alex tests the new S3 Files service: writes converge in under 2s, but deleted files linger for 18 seconds. Know the latency trade-offs.

We tested S3 Files on April 7, 2026. Updates hit in 1.8s, but new files still lag 30s. Here is the sync math for your ML pipelines.

AWS S3 Files now supports NFS v4.2, letting Lambda mount buckets directly. This ends the 20-year split between file flexibility and object durability.

AWS S3 Files now serve NFS v4.2 directly, letting 54% of multi-cloud users consolidate storage without duplicating data or paying gateway fees.

Stop wasting time on copy mechanics. Learn how S3 Files let compute access 40 PB of genomic data directly, skipping fragile transfers.