Cloud · head to head
AWS (Amazon Web Services) vs Thanos

Thanos
Cloud
Highly available Prometheus with long-term object storage
- From
- Free
- Rated
- -
The short version
- Each has a real cost: AWS (Amazon Web Services) data transfer in is free and data transfer out is charged, which is the standard source of unexpected bills; Thanos several components — sidecar, store, querier, compactor, ruler — each with its own configuration and failure modes
- They diverge on capability: AWS (Amazon Web Services) covers EC2 - Virtual Servers, Thanos covers Global query.
Where they differ
Only the attributes on which AWS (Amazon Web Services) and Thanos actually diverge.
| Attribute | AWS (Amazon Web Services) | Thanos |
|---|---|---|
| Pricing model | usage-based | Open source, no licence fee |
| Platforms | Web, Api, Cli, Mobile | Kubernetes, Linux, Docker |
| Founded | 2006 | Unknown |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cloud).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in AWS (Amazon Web Services)
- EC2 - Virtual Servers
- S3 - Object Storage
- RDS - Managed Database
- Lambda - Serverless Computing
- CloudFront - CDN
- VPC - Virtual Network
- IAM - Access Management
- CloudWatch - Monitoring
Only in Thanos
- Global query
- Object storage retention
- Deduplication
- Downsampling
What people use each for
The jobs each tool is most often brought in to do.
AWS (Amazon Web Services)
- Web hostingnot Thanos
- Data storagenot Thanos
- Machine learningnot Thanos
- Big data analyticsnot Thanos
- Application developmentnot Thanos
Thanos
- Querying metrics across many clusters or regions from one placenot AWS (Amazon Web Services)
- Retaining metrics for years without local disk growthnot AWS (Amazon Web Services)
- Removing the gap that appears when a single Prometheus instance restartsnot AWS (Amazon Web Services)
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
AWS (Amazon Web Services)
- Data transfer in is free and data transfer out is charged, which is the standard source of unexpected bills
- Discounts require one or three year Savings Plan commitments rather than being automatic
- Every service is priced separately, so a working architecture has no single published cost
- The free tier is a promotional allowance rather than an ongoing free plan
Thanos
- Several components — sidecar, store, querier, compactor, ruler — each with its own configuration and failure modes
- The compactor is a common source of operational trouble and must not run twice against the same bucket
- Query latency over object storage is meaningfully higher than local Prometheus
- Object storage costs and API request charges become real at high volume
Pricing, plan by plan
AWS (Amazon Web Services)
Free- AWS Free TierFree
- EC2 750 hours/month
- 5GB S3 storage
- 20GB data transfer
- Pay-As-You-GoFree
- No upfront payment
- No long-term commitments
- Pay only for what you use
Thanos
Free- ThanosFree
- Full functionality
- No usage limits
- Community support
Which should you pick?
Choose AWS (Amazon Web Services) if
- You need ec2 - virtual servers.
- You want to start without paying.
- You work on Web, Api, Cli, Mobile.
- You also want s3 - object storage.
Choose Thanos if
- You need global query.
- You want to start without paying.
- You work on Kubernetes, Linux, Docker.
- You also want object storage retention.
Questions people ask
- Is AWS (Amazon Web Services) or Thanos better?
- Neither clearly leads. AWS (Amazon Web Services) starts at Free and Thanos at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, AWS (Amazon Web Services) or Thanos?
- AWS (Amazon Web Services) starts at Free and Thanos at Free.
- Does AWS (Amazon Web Services) or Thanos run on more platforms?
- AWS (Amazon Web Services) runs on Web, Api, Cli, Mobile. Thanos runs on Kubernetes, Linux, Docker.
- Can I use AWS (Amazon Web Services) for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is AWS (Amazon Web Services) best used for?
- AWS (Amazon Web Services) is most often used for web hosting, data storage, machine learning, big data analytics. Of those, web hosting and data storage are not what Thanos is typically brought in for.
- What can AWS (Amazon Web Services) do that Thanos cannot?
- AWS (Amazon Web Services) covers EC2 - Virtual Servers, S3 - Object Storage, RDS - Managed Database, Lambda - Serverless Computing. Thanos covers Global query, Object storage retention, Deduplication, Downsampling.
Answered from the vendors’ own pages
AWS (Amazon Web Services): What are AWS's payment options and pricing models?
AWS offers four pricing approaches: pay-as-you-go (you pay only for what you use), flat-rate plans combining multiple services into one monthly price without overages, Savings Plans offering discounts on compute and machine learning with 1- or 3-year commitments, and volume-based tiered pricing where costs decrease as usage increases.
SourceThanos: Is Thanos free?
Yes, open source and CNCF-incubating. Costs are the object storage it uses.
AWS (Amazon Web Services): Are there contracts, termination fees, or commitments required for AWS?
No long-term contracts are required for AWS services. No termination fees apply once you stop using the service. Savings Plans provide optional 1- or 3-year commitments with discounted hourly rates, but you can revert to pay-as-you-go pricing anytime.
SourceThanos: Does Thanos replace Prometheus?
No. It runs alongside existing Prometheus servers, adding global query, deduplication and long-term storage.
AWS (Amazon Web Services): Does AWS offer a free tier?
AWS provides a free tier that offers hands-on experience with AWS products at no charge. The free tier allows new customers to try eligible services before committing to paid usage.
SourceThanos: Thanos or VictoriaMetrics?
Thanos layers onto Prometheus using object storage and is the more established multi-cluster answer. VictoriaMetrics is a separate store aiming at lower resource use and fewer moving parts.
AWS (Amazon Web Services): How do I estimate my AWS costs?
AWS provides the AWS Pricing Calculator and Cost Explorer tool to estimate costs for single or multiple services. AWS also offers cost optimization recommendations, performance reporting, and budget alerts to help track and control spending.
SourceRelated pages
More on AWS (Amazon Web Services)
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