AWS S3 vs Wasabi: Cloud Storage Cost Comparison
The Price Gap
AWS S3 costs $23/TB/month for standard storage, plus $0.09/GB for every byte downloaded. Wasabi costs $6.99/TB/month with zero egress fees, zero API request charges, and zero ingress fees. For a 1TB workload with 100GB of monthly egress, S3 costs $32.55/month. Wasabi costs $6.99/month. That is an 82% reduction.
But the headline number hides important constraints. Wasabi enforces a 1TB monthly minimum, a 90-day minimum storage duration, and a 1:1 egress-to-storage ratio cap on free downloads. S3 has no minimums, no storage duration requirements, and an ecosystem of integrations that Wasabi cannot match.
The right choice depends entirely on workload shape. Wasabi is built for stable, long-term storage. S3 is built for everything else.
TL;DR
Wasabi is the clear winner for backup, archival, and media library workloads where data is retained for 90+ days and monthly egress stays within 1:1 of stored volume. AWS S3 is the right choice for dynamic workloads requiring short-term staging, complex storage tiering, deep AWS integration, or egress patterns that exceed Wasabi's ratio cap. For a 10TB backup with 5TB monthly restoration, Wasabi saves approximately $7,400/year compared to S3 Standard.
Key Takeaways
- Wasabi is 70% cheaper on storage alone. $6.99/TB versus $23/TB for S3 Standard. For 10TB, that is $69.90/month versus $230/month -- before egress fees.
- Wasabi has zero egress fees -- with conditions. Downloads are free when monthly egress does not exceed stored volume (1:1 ratio) and stays under 100TB/month absolute cap. Exceeding the ratio may trigger a conversation with Wasabi's team.
- S3 egress fees dominate total cost. A 10TB backup restored once costs $920 in S3 egress. The same restoration on Wasabi costs $0.
- Wasabi has zero API request charges. S3 charges $5/million for PUT requests and $0.40/million for GET requests. For workloads with millions of small objects, API fees on S3 can exceed storage costs.
- Wasabi has a 90-day minimum storage duration. Deleting data before 90 days still incurs the full 90-day charge. S3 Standard has no minimum storage duration.
- Wasabi has a 1TB monthly minimum. Storing 100GB still costs the full $6.99/month. S3 charges from the first byte with no floor.
- S3 has 8+ storage classes. Wasabi has one. S3 Glacier Deep Archive at $0.00099/GB is 7x cheaper than Wasabi for cold data that tolerates retrieval delays.
The Price Gap in Detail
Wasabi Pricing
| Component | Cost |
|---|---|
| Storage | $6.99/TB/month ($0.0068/GB) |
| Egress (within 1:1 ratio) | $0 |
| API requests | $0 |
| Ingress | $0 |
| Minimum storage | 1TB/month ($6.99/month floor) |
| Minimum storage duration | 90 days |
| Regions | 13+ (uniform pricing worldwide) |
Wasabi's pricing model is deliberately simple: one rate, globally uniform, no tiers. The constraints -- 1TB minimum, 90-day duration, 1:1 egress ratio -- are the tradeoffs for that simplicity.
AWS S3 Pricing (US East)
| Component | S3 Standard | S3 Standard-IA | Glacier Deep Archive |
|---|---|---|---|
| Storage (first 50TB) | $0.023/GB | $0.0125/GB | $0.00099/GB |
| PUT requests | $5.00/million | $10.00/million | $50.00/million |
| GET requests | $0.40/million | $1.00/million | $10.00/million |
| Egress (first 10TB) | $0.09/GB | $0.09/GB | $0.09/GB |
| Minimum storage duration | None | 30 days | 180 days |
| Minimum object size | None | 128KB | 40KB |
S3 pricing has multiple axes: storage class, request type, data transfer, retrieval fees, and monitoring charges. Total cost depends on the specific access pattern and storage mix.
Side-by-Side Cost Scenarios
| Scenario | Wasabi | S3 Standard | Annual Savings |
|---|---|---|---|
| 1TB stored, 100GB egress/month | $6.99/mo | $32.55/mo | $307 |
| 1TB stored, 5TB egress/month | $6.99/mo | $473/mo | $5,592 |
| 10TB stored, 5TB egress/month | $69.90/mo | $695.80/mo | $7,511 |
| 10TB stored, 10TB egress/month | $69.90/mo | $1,130/mo | $12,721 |
| 50TB stored, 10TB egress/month | $349.50/mo | $2,050/mo | $20,406 |
| 100TB stored, 50TB egress/month | $699/mo | $6,800/mo | $73,212 |
For a 10TB backup with monthly 5TB restoration, Wasabi costs $69.90/month versus S3's $695.80/month. That is $7,511/year in savings -- enough to fund an engineer's annual cloud training budget.
When S3 Becomes Cheaper
S3 wins on cost in three specific scenarios:
- Small storage volumes. Under 1TB, S3 charges for actual usage while Wasabi charges the 1TB minimum. At 100GB stored, S3 costs $2.30/month versus Wasabi's $6.99.
- Cold archival data. S3 Glacier Deep Archive at $0.00099/GB costs $0.99/TB/month -- 7x cheaper than Wasabi for data that is rarely accessed and can tolerate retrieval delays of 12-48 hours.
- Short-term staging. Data stored for less than 90 days costs the full 90 days on Wasabi. S3 Standard has no minimum duration, making it cheaper for ephemeral objects, temporary uploads, and short-lived processing artifacts.
Feature Comparison
| Feature | Wasabi | AWS S3 |
|---|---|---|
| Storage cost/TB | $6.99 | $23 (Standard) |
| Egress cost | $0 (within 1:1) | $0.09/GB |
| API request charges | $0 | $0.40-$50/million |
| Storage classes | 1 (hot) | 8+ (Standard through Deep Archive) |
| S3 API compatible | Yes | Yes (native) |
| Object Lock (WORM) | Yes | Yes |
| Versioning | Yes | Yes |
| Lifecycle rules | Basic | Advanced (multi-class transitions) |
| Encryption at rest | Yes | Yes (SSE-S3, SSE-KMS, SSE-C) |
| Event notifications | No | EventBridge, SNS, SQS, Lambda |
| Cross-region replication | Yes | Yes |
| IAM / access controls | Basic (IAM-compatible) | Full IAM, bucket policies, Access Points |
| Compliance certifications | SOC 2, SOC 3 | HIPAA, FedRAMP, PCI DSS, SOC 1/2/3, ISO |
| Intelligent-Tiering | No | Yes (auto-tiering) |
| S3 Select (query in place) | No | Yes |
| Batch operations | No | Yes |
| CDN integration | Via third-party | CloudFront (native) |
| Lambda triggers | No | Yes |
| Regions | 13+ | 30+ |
| Minimum storage | 1TB/month | None |
| Minimum duration | 90 days | None (Standard) |
Wasabi wins on cost. S3 wins on storage tiering, compliance, event-driven architecture, ecosystem depth, and operational flexibility. The feature gap is wide, but for workloads that do not need those features, the cost gap is wider.
The Fine Print: Wasabi's Hidden Gotchas
Wasabi's pricing simplicity comes with constraints that can surprise teams who do not read the fine print.
The 1TB Minimum
Wasabi charges a $6.99/month minimum regardless of actual storage volume. Storing 50GB costs the same as storing 1TB. This makes Wasabi uneconomical for small workloads. The breakeven point against S3 Standard is approximately 304GB -- below that threshold, S3 is cheaper on storage alone.
The 90-Day Minimum Storage Duration
Every object uploaded to Wasabi is billed for a minimum of 90 days. Deleting a 100GB file after 10 days still incurs charges for the remaining 80 days. This policy is designed for backup and archival workloads where data retention is measured in months or years, not days. Teams using object storage for temporary file staging, build artifacts, or short-lived processing outputs will pay a premium relative to S3 Standard, which has no minimum storage duration.
The 1:1 Egress-to-Storage Ratio
Free egress applies only when monthly downloads do not exceed the volume of data stored. Storing 10TB and downloading 10TB in a month is free. Storing 10TB and downloading 15TB may not be. Wasabi's acceptable use policy states that egress exceeding the 1:1 ratio on a sustained basis may result in the account being contacted. The enforcement is not automatic billing -- it is a conversation -- but the ratio effectively caps free egress at 1x stored volume per month.
For workloads where egress routinely exceeds stored volume (CDN origins serving cached content, API endpoints returning repeated datasets), this ratio can be a problem. Those workloads may be better served by Cloudflare R2, which has no egress ratio restrictions.
No Active Deletion of the Minimum
When scaling down, the 90-day minimum means old storage continues to incur charges. Migrating away from Wasabi requires budgeting for up to 90 days of trailing charges on deleted data.
S3 API Compatibility
Wasabi implements the S3 API, which means the same SDKs, the same CLI tools, and the same integration patterns work with both services. The migration path is a configuration change, not a rewrite.
import { S3Client, PutObjectCommand } from '@aws-sdk/client-s3';
const wasabi = new S3Client({
region: 'us-east-1',
endpoint: 'https://s3.wasabisys.com',
credentials: {
accessKeyId: process.env.WASABI_ACCESS_KEY,
secretAccessKey: process.env.WASABI_SECRET_KEY,
},
});
// Same API as S3 -- just a different endpoint
await wasabi.send(new PutObjectCommand({
Bucket: 'my-backups',
Key: `daily/${new Date().toISOString()}.tar.gz`,
Body: backupStream,
}));
Backup tool integration is Wasabi's strongest ecosystem play. Native compatibility with Veeam, MSP360, Arq, Commvault, Veritas, Synology, QNAP, and rclone means existing backup workflows connect without custom development. Wasabi reports over 40,000 customers, the majority using the service as a backup target through these integrations.
Migration from S3 is straightforward:
- Create a Wasabi account and configure IAM credentials
- Use rclone for data transfer:
rclone sync s3:my-bucket wasabi:my-bucket - Verify data integrity with checksums
- Update application endpoint from
s3.amazonaws.comtos3.wasabisys.com - Monitor egress ratio to stay within the 1:1 free egress threshold
The migration is configuration-level -- no SDK changes, no API refactoring, no code rewrite.
Enterprise Features: Where S3 Pulls Ahead
Compliance and Certifications
S3 covers HIPAA, FedRAMP, PCI DSS, SOC 1/2/3, ISO 27001, and more. Wasabi offers SOC 2 and SOC 3. For regulated industries -- healthcare, finance, government -- S3's compliance portfolio is a hard requirement, not a preference.
Storage Tiering
S3 offers 8+ storage classes spanning hot to cold to frozen. Intelligent-Tiering automatically moves objects between access tiers based on usage patterns, reducing costs by 30-70% without manual lifecycle rules. Glacier Deep Archive provides $0.99/TB storage for data accessed once or twice a year. Wasabi has a single hot-storage tier -- there is no equivalent to Glacier pricing for rarely accessed data.
Event-Driven Architecture
S3 integrates natively with Lambda, EventBridge, SNS, and SQS. Object uploads can trigger processing pipelines, notifications, and cross-service workflows automatically. Wasabi has no event notification system. Teams building event-driven architectures around storage events need S3 or must add custom polling logic on top of Wasabi.
// Lambda triggered by S3 upload -- not possible with Wasabi
export const handler = async (event) => {
const bucket = event.Records[0].s3.bucket.name;
const key = event.Records[0].s3.object.key;
const data = await s3.send(new GetObjectCommand({ Bucket: bucket, Key: key }));
await processAndStore(data.Body);
};
Access Control Depth
S3 offers full IAM policies, bucket policies, Access Points, Object Lambda, and fine-grained ACLs. Wasabi provides basic IAM-compatible access controls but lacks the granularity and flexibility of the full AWS IAM ecosystem.
Recommendations
Choose Wasabi when:
- The workload is backup or archival. Long-term data retention (90+ days) with moderate access patterns is Wasabi's ideal use case. Backups, media libraries, compliance archives, and disaster recovery data.
- Egress costs are destroying the budget. Every TB downloaded from S3 costs $90. The same download from Wasabi costs $0 within the 1:1 ratio. For workloads with regular data restoration, the savings are transformative.
- Storage volume exceeds 1TB. Below 1TB, Wasabi's minimum makes it less cost-effective. Above 1TB, it is 70% cheaper than S3 Standard on storage and infinitely cheaper on egress.
- API request volume is high. S3 charges $5/million for PUT requests. Wasabi charges nothing. For workloads with millions of small objects, API fees can exceed storage costs on S3.
- Pricing predictability matters. One rate, no tiers, no egress calculations, no surprise bills. The monthly budget is
stored_TB * $6.99.
Choose AWS S3 when:
- The workload needs storage tiering. Glacier Deep Archive at $0.99/TB is 7x cheaper than Wasabi for cold data. Intelligent-Tiering automates cost optimization across access patterns.
- Data is short-lived. Staging files, temporary uploads, and ephemeral processing artifacts stored for fewer than 90 days cost more on Wasabi due to the minimum duration charge.
- Storage is under 1TB. Below 1TB, S3's pay-per-byte model is cheaper than Wasabi's $6.99 minimum.
- Deep AWS integration is required. Lambda triggers, EventBridge routing, Athena queries, and CloudFront distribution are native to S3 and unavailable with Wasabi.
- Compliance requires specific certifications. HIPAA, FedRAMP, PCI DSS -- S3's compliance portfolio covers regulated industries where Wasabi's SOC 2/3 may not be sufficient.
- Egress routinely exceeds the 1:1 storage ratio. CDN-like workloads serving the same data repeatedly may exceed Wasabi's free egress threshold. Cloudflare R2 or S3 with CloudFront may be better options.
The 2026 Pattern
Wasabi has become the default choice for backup and archival workloads among cost-conscious teams. The 80% cost reduction compared to S3 Standard is too large to ignore for stable, long-term storage. S3 retains its position for dynamic workloads requiring event-driven processing, complex tiering, and deep AWS ecosystem integration.
The emerging architecture: Wasabi for backup and archival, S3 for application storage and event-driven processing. Many organizations run both, optimizing cost and capability across workload types rather than forcing one platform to serve every use case.
Methodology
- Sources: Wasabi and AWS S3 official pricing pages, Wasabi documentation and FAQ, comparison reviews from CloudWards, N2W Software, CheckThat, and Opsolute
- Pricing data: Official pricing pages as of March 2026. S3 pricing uses US East (N. Virginia) region. Wasabi pricing is globally uniform
- Feature data: Official documentation from both platforms
- Limitations: Wasabi's egress ratio enforcement may vary by account. S3 pricing varies by region. Enterprise volume discounts are not reflected. Wasabi's 1:1 egress ratio enforcement details are subject to their acceptable use policy
Comparing cloud storage options? Explore AWS S3, Wasabi, Cloudflare R2, and more on APIScout -- pricing, features, and developer experience across every major storage API.