Backblaze B2 Cloud Storage Pricing & Zero-Egress Rules 2026
High-durability S3-compatible cloud object storage at 75% less cost than AWS S3. Verified daily against official cloud provider documentation.
Backblaze B2 Production Pricing Matrix
Real-time unit costs, context sizes, operational throughput, and optimal use-case recommendations.
| Service / Model Tier | Primary Rate | Secondary / Output Rate | Context / Capacity | Throughput / Latency | Optimal Workload |
|---|---|---|---|---|---|
| Hot Object Storage | $0.006 / GB / mo | First 10 GB Free | 11 Nines (99.999999999%) | Single-tier active storage | - |
| Public Internet Egress | Free up to 3x stored data | $0.01 / GB thereafter | No lock-in fees | AWS S3 charges $0.09/GB | - |
| Class A Requests (Writes / Puts) | $0.004 / 1,000 reqs | First 2,500/day Free | Standard HTTP POST/PUT | S3 charges $0.005/1K | - |
| Class B Requests (Reads / Gets) | $0.0004 / 1,000 reqs | First 2,500/day Free | Standard HTTP GET | S3 charges $0.0004/1K | - |
| Cloudflare Bandwidth Alliance | $0.00 Egress Forever | Via Cloudflare CDN | Unconditional Free Egress | Ideal for media delivery | - |
Architectural & Financial Billing Nuances
Committed Use & Volume Discounts
Enterprise accounts spending over $2,000/mo typically qualify for 20% to 45% volume concessions or reserved throughput capacity agreements.
SLA & Latency Guarantees
Standard tiers offer 99.9% availability. Dedicated instances provide private VPC endpoints, zero noisy-neighbor degradation, and sub-100ms TTFT guarantees.
Frequently Asked Questions: Backblaze B2
Developer guidance on API compatibility, rate limit increases, and billing optimization.
How does the 3x free download egress rule work?
If you store 10 TB with Backblaze, you receive 30 TB of free download egress every month. If you exceed 30 TB, overage is billed at just $0.01/GB.
Is Backblaze B2 compatible with AWS CLI and SDKs?
Yes, B2 provides a native S3-compatible endpoint allowing drop-in use with Boto3, AWS CLI, rclone, and Cyberduck.