What's good about...
Fluidstack
- Managed Slurm and Kubernetes clusters on bare metal
- Active and passive cluster health checks with observability
- ClusterMAX Gold rating from SemiAnalysis
- Custom data centers built for a single customer's workload
Vast.ai
- Budget cards to Blackwell, including the RTX PRO 6000 and B200
- On-demand, interruptible and reserved rentals
- SOC 2 Type II certified, with vetted datacenter hosts in Secure Cloud
- Host reliability ratings and GPU performance benchmarks
- REST API, CLI, Python SDK and coding agent plugins
Price comparison
Fluidstack Pricing
Fluidstack publishes no public rates. Capacity is contracted directly and quoted per deal, and there is no self-serve hourly option or online signup.
Vast.ai Pricing
Hosts set their own rates. Compute is billed per second from prepaid credits. Storage charges continue while an instance is stopped, and bandwidth fees vary by host.
- On-demand: Fixed rates for the offer's maximum duration.
- Interruptible: Bid for capacity. Instances pause if you're outbid or an on-demand renter takes the machine.
- Reserved: Prepay for a fixed term, with larger discounts for longer commitments.
GPU Fleet Overview
Billing Options
Fluidstack
Vast.ai
Available Models
Vast.ai offers 55 GPU models.
Fluidstack
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 Fluidstack and Vast.ai offer:
Company details
|
Fluidstack
|
Vast.ai
|
|
|---|---|---|
| Website | www.fluidstack.io | vast.ai |
| Headquarters |
United States of America 
|
United States of America
|
| Founded | 2017 | 2018 |
| Data Center Locations | 4 | 10 |
| Example Customers | -- | IBM, Brave, Speechify, Cognition, Bosch |
Fluidstack
Vast.ai
Fluidstack
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Fluidstack
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Alternatives to consider
Compare Fluidstack and Vast.ai against other cloud providers.
Our data for Fluidstack was last updated on Aug. 31, 2026, and for Vast.ai on Sept. 11, 2026.