Cloudflare just announced their Cloud Storage solution, R2, with a very interesting pricing model (emphasis mine):
Traditional object storage charges developers for three things: bandwidth, storage size and storage operations.
R2 builds on Cloudflare’s commitment to the Bandwidth Alliance, providing zero-cost egress for stored objects — no matter your request rate.
Cloudflare R2 will be priced at $0.015 per GB of data stored per month — significantly cheaper than major incumbent providers.
In a very brilliant move, they also made their API fully compatible with the S3 API. That way it’s compatible with existing tools and applications, so switching over from S3 should go without any issue.