Backblaze Pricing Plans and Tiers

Backblaze's B2 Cloud Storage at $6/month for pay-as-you-go object storage undercuts AWS S3 ($0.023/GB minimum) by offering predictable monthly minimums rather than variable per-GB pricing. The $6 minimum covers ~260GB at S3 pricing, making B2 economical for small-to-mid workloads with consistent storage footprints. For larger deployments, B2's $0.006/GB pricing outperforms S3's $0.023/GB standard tier, a 4x cost advantage that explains B2's appeal to backup vendors and archival workflows.

B2 Overdrive ($15/month) is a strategic tier targeting enterprise backup vendors who require terabit-speed ingestion and dedicated private vaults. The unlimited free egress is the key differentiator from AWS and Azure, which charge $0.02-0.05/GB for egress. For vendors moving petabytes of backup data off platform, Overdrive's egress pricing elimination is economically material, justifying the $15 monthly premium over standard B2.

Backblaze's '3x monthly free egress' policy on standard B2 is designed to enable archival use cases without penalizing occasional retrieval. However, this policy creates a pricing cliff for high-egress workflows: the fourth egress operation in a month incurs $0.01/GB, making retrieval-heavy patterns more expensive than S3's flat $0.02/GB rate. The tier structure assumes backup workflows prioritize write density over retrieval frequency.