From the source
Vercel made Vercel Blob generally available.
The 
Pricing is usage-based with regional rates for Pro and Enterprise customers, and Blob Data Transfer is described as 3x more cost-efficient than Fast Data Transfer on average.
Vercel Blob is now generally available: Cost-efficient, durable storage
Vercel Blob, S3-backed storage integrated with Vercel's network, is now GA.
Availability change
From the source
Vercel Blob is now generally available. It's already storing and serving over 400 million files, and powers production apps like v0 and the Vercel Dashboard.
vercel.com
