What's good about...
FlexStack
- One-click deploy to AWS without complicated infrastructure or templates
- Easy-to-use dashboard and excellent documentation
- No vendor lock-in - uses your own AWS account and can "eject" anytime
- Generous free tier with affordable monthly plans
Spheron
- Aggregates GPU supply from five data center partners
- Blackwell B200 and B300 nodes offered on spot
- Partner facilities certified to ISO 27001, SOC 2, and HIPAA
- Regions in the US, Canada, Europe, and the Middle East
Price comparison
FlexStack Pricing
FlexStack charges a fixed subscription fee on top of your AWS usage. It's available in three plans including a free tier:
- Starter $0/mo: Includes 1 environment, 1 team member and 2 running services.
- Indie $9/mo: Includes 10 environments, 1 team member and 50 running services.
- Team $29/user/mo: Unlimited environments, team members and services.
You can view the complete list of features on their pricing page.
GPU Fleet Overview
Billing Options
FlexStack
Spheron
Available Models
Spheron offers 9 GPU models.
FlexStack
H100Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Plan figures take each provider's closest match to a common setup. Verify before provisioning. More on how we price.
Which services do they offer
Here are some managed services that FlexStack and Spheron offer:
| Service |
FlexStack
|
Spheron
|
|---|---|---|
| GPU-powered Servers |
Company details
|
FlexStack
|
Spheron
|
|
|---|---|---|
| Website | flexstack.com | www.spheron.ai |
| Headquarters |
United States of America 
|
Singapore 
|
| Founded | 2024 | 2020 |
| Data Center Locations | -- | -- |
| Example Customers | -- | Prem AI, Wafer, Compute Desk, Baseten, Stanford University, UC Berkeley |
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Alternatives to consider
Compare FlexStack and Spheron against other cloud providers.
Our data for FlexStack was last updated on Feb. 12, 2026, and for Spheron on Sept. 3, 2026.