Backblaze B2 Cloud Storage Pricing Sheet
Backblaze B2 offers durable, S3-compatible cloud object storage at just $6 per Terabyte per month. Compare storage rates, 3x free egress allowances, API transaction fees, and backup archive economics.
Backblaze B2 Storage & Egress Cost Simulator
Calculate monthly bills across stored terabytes and download egress bandwidth.
Production Pricing & Model Tier Rates
Verified rates, context capacities, typical inference latency, and recommended enterprise workloads.
| Model / Tier | Input Rate (1M) | Output Rate (1M) | Context Window | Latency / Throughput | Recommended Workload |
|---|---|---|---|---|---|
| Standard Hot Storage | $0.006 / GB-mo | $6.00 / TB-month | Unlimited | Sub-50ms | Database backups, media archives, video footage |
| Egress Bandwidth | FREE up to 3x data | $0.010 / GB after cap | Global CDN | Global | File restore, asset downloads |
| Class A Ops (Write/List) | $0.004 / 1,000 ops | ($4.00 / 1M) | Standard | Sub-50ms | File uploads, multipart commits |
| Class B Ops (Read/Get) | $0.0004 / 1,000 ops | ($0.40 / 1M) | Standard | Sub-20ms | File downloads, metadata lookups |
| Bandwidth Alliance (Cloudflare/Fastly) | 100% FREE Egress | $0.00 egress | Unlimited | Edge CDN | Web delivery via Cloudflare CDN with zero egress |
âš¡ Architectural Deep Dive & Unit Economics Analysis
Backblaze built its reputation on radical transparency and unmatched storage unit economics. By designing custom Storage Pod hardware chassis and operating hyper-dense data centers, Backblaze charges just $0.006 per GB-month ($6.00 per Terabyte) for hot, instantly accessible object storage—nearly 75% less than AWS S3 Standard ($23.00/TB).
Crucially, Backblaze B2 provides free monthly egress up to 3x your average stored data, with subsequent downloads billed at an affordable $0.01 per GB (compared to AWS's predatory $0.09/GB). Through the Bandwidth Alliance, pairing Backblaze B2 with Cloudflare or Fastly CDN eliminates egress fees completely (100% free), making B2 the premier backend for high-volume video and SaaS assets.
Production Workloads & Monthly Cost Modeling
Evaluating practical unit economics across real-world application architectures.
50 TB Enterprise PostgreSQL Backup Archive
Storing 50 TB of database snapshots with weekly restore testing. Backblaze B2 costs $300/mo versus AWS S3 Standard's $1,150/mo, saving $850 every month.
Viral SaaS Video Streaming via Cloudflare CDN
Storing 10 TB of video files with 100 TB downloaded monthly. Using Bandwidth Alliance with Cloudflare CDN, egress is $0.00. Total cost: $60/month.
Cold Ransomware-Proof Immutability Vault
Storing 20 TB with Object Lock enabled for ransomware defense. Costs $120.00/mo with zero retention penalties.
import os
import boto3
from botocore.config import Config
# Backblaze B2 provides full S3 API wire compatibility
b2_client = boto3.client(
's3',
endpoint_url="https://s3.us-west-004.backblazeb2.com",
aws_access_key_id=os.environ['B2_KEY_ID'],
aws_secret_access_key=os.environ['B2_APPLICATION_KEY'],
config=Config(signature_version='s3v4')
)
def upload_backup_to_b2(filepath: str, bucket: str):
"""Upload database backup archive to Backblaze B2 at $6/TB."""
filename = os.path.basename(filepath)
b2_client.upload_file(filepath, bucket, filename)
print(f"Uploaded {filename} to Backblaze B2 bucket '{bucket}' successfully.")Operational Gotchas & Failure Modes
Engineering realities, throttling thresholds, and hidden surcharge traps to monitor.
Related Models, Showdowns & Benchmarks
Cross-reference provider rates against hosted models, direct head-to-head battles, and calculators.
Cloudflare R2 vs Backblaze B2
Compare zero-egress R2 against $0.006/GB Backblaze storage.
AWS S3 vs Backblaze B2
Analyze backup storage savings comparing AWS against Backblaze.
AWS S3 vs Cloudflare R2
Compare AWS S3 egress taxes versus Cloudflare R2 zero-egress.
Full API Directory & Cost Guide
Search 100+ developer and cloud storage APIs.
Frequently Asked Questions
How much does Backblaze B2 cost per Terabyte?
Backblaze B2 costs $6.00 per Terabyte per month ($0.006 per Gigabyte), making it roughly 74% cheaper than Amazon S3 Standard ($23.00/TB).
How does Backblaze B2 free egress work?
Backblaze B2 provides free download egress up to 3 times your average monthly stored data. For example, if you store 10 TB, you get 30 TB of free downloads every month.
Is Backblaze B2 compatible with Amazon S3 tools?
Yes! Backblaze B2 offers full S3 API compatibility. You can use boto3 (Python), the AWS CLI, rclone, and Veeam backup software by simply setting the endpoint URL.
Does Backblaze B2 have a free tier?
Yes! Backblaze B2 provides 10 GB of storage and 1 GB of egress per day completely free forever.
Can I get 100% free egress using Cloudflare CDN with Backblaze?
Yes! Through the Bandwidth Alliance, downloading files from Backblaze B2 through Cloudflare's CDN incurs zero data transfer fees ($0.00).
Does Backblaze B2 support Object Lock for ransomware protection?
Yes! Backblaze B2 natively supports Object Lock, preventing files from being modified, overwritten, or deleted by ransomware for a user-specified retention duration.
Backblaze B2 S3-Compatible Cloud Storage: The 1/4th AWS Cost Architecture
Backblaze B2 provides S3-compatible object storage engineered specifically to eliminate hyperscaler storage markups. While AWS S3 Standard charges $0.023 per GB-month and $0.09/GB egress, Backblaze B2 charges a flat $0.006 per GB-month ($6.00 per terabyte) with 3x free egress bandwidth (e.g. 30TB of monthly egress included free with 10TB of stored data). Beyond the free allowance, egress is billed at only $0.01/GB. For multi-terabyte data lakes, AI model weight distribution, and media archives, B2 delivers an immediate 74% infrastructure cost reduction.
Monthly Operating Cost Matrix: AWS S3 vs Backblaze B2 (20 TB Storage + 40 TB Egress)
| Line Item | Amazon S3 Standard | Backblaze B2 Cloud | Monthly Net Savings |
|---|---|---|---|
| Storage (20 TB) | $460.00 ($0.023/GB) | $120.00 ($0.006/GB) | Save $340.00 (74%) |
| Data Egress (40 TB) | $3,600.00 ($0.09/GB) | $0.00 (Included in 3x ratio) | Save $3,600.00 (100%) |
| API Transactions (Class A/B) | $25.00 | $4.00 ($0.004/10k) | Save $21.00 |
| Total Monthly Bill | $4,085.00 / mo | $124.00 / mo | Save $3,961.00 / mo (97%) |
AWS SDK S3-Compatible Backblaze B2 Client (Node.js)
import { S3Client, PutObjectCommand } from '@aws-sdk/client-s3';
// Direct drop-in replacement for AWS S3 using official AWS SDK v3
const b2Client = new S3Client({
endpoint: 'https://s3.us-west-004.backblazeb2.com',
region: 'us-west-004',
credentials: {
accessKeyId: process.env.B2_KEY_ID!,
secretAccessKey: process.env.B2_APPLICATION_KEY!
}
});
export async function uploadArchive(fileKey: string, body: Buffer) {
return await b2Client.send(new PutObjectCommand({
Bucket: 'production-data-lake',
Key: fileKey,
Body: body
}));
}Engineering Q&A: Backblaze B2 Storage
Is Backblaze B2 fully compatible with existing AWS S3 SDKs?
Yes. Backblaze B2 supports the full S3 API specification, including multipart uploads, presigned URLs, lifecycle rules, and object locks. Simply change the endpoint URL and credentials in your existing AWS SDK code.
How does Cloudflare Bandwidth Alliance eliminate B2 egress fees?
Backblaze is a founding member of the Cloudflare Bandwidth Alliance. Data transfer from Backblaze B2 into Cloudflare's CDN edge network is 100% free of charge ($0/GB), enabling global media streaming with zero egress costs.