Catalog
P/G instance families as on-demand when published. Spot and capacity blocks labeled or excluded from the on-demand rank.
Provider review / verified 2026-09-05
AWS sells P- and G-class GPU instances inside the rest of Amazon. Credits, IAM, PrivateLink, and a bill that includes everything except peace. On-demand exists. It is rarely the floor.
Our reading
I use AWS GPUs when the company already lives there, data in S3, SSO, the security questionnaire that would take longer than the training run. I do not use AWS to save money on an H100. The hour is the tax you pay for the rest of the platform. If a startup with no AWS estate picks P-instances because ‘nobody got fired,’ I will argue with them. If a bank does it, I will nod and go back to the catalog.
Rent it if Teams whose gravity well is already AWS, who need GPU next to the rest of the estate.
Skip it if Anyone whose only workload is a GPU and who can tolerate a specialist cloud. You are donating margin.
How we compare hoursSame standard, every cloud
Four checks we apply to every provider. This is not a score, and it is not a paid ranking.
P/G instance families as on-demand when published. Spot and capacity blocks labeled or excluded from the on-demand rank.
Usually the expensive honest number. Neoclouds exist because of this cell.
Hyperscaler GPU as a SKU among thousands. The platform is the product.
Quota, AZ, instance size (xlarge vs metal), and whether you are looking at spot.
Catalog listings
Published on-demand hours first. Spot and waitlists are labeled. Confirm the live rate before you provision.
AWS is where GPU quota goes to wait. I have watched teams spend a week on limits for a job that would have been a RunPod Secure pod after lunch. If your data cannot leave AWS, stay. If your data is a bucket you can copy, look at the specialist hour.
AWS Spot on GPU can look like a neocloud. It can also vanish. GPUBeacon will not let a spot P4 pretend to be on-demand. Checkpoint or pay.
When GPU is 10% of the architecture. When PrivateLink and KMS are not optional. When the model reads from a lake that will never get a SAS URL to Vast.ai. Then the ‘expensive’ hour is cheap in political capital.
P-family limits are the real stock. The pricing page is fiction until quota is real.
P4, P5, G6, not ‘an A100.’ Size and GPU count live in the SKU.
Lambda or CoreWeave, same GPU, on-demand. Know what the tax is.
FAQ
Usually yes on on-demand GPU hours. You are buying AWS, not a GPU. Sometimes that is rational.
AWS if the estate is AWS. CoreWeave if the estate is the GPU cluster. Do not buy CoreWeave to run your email.
Only with checkpoints and a stomach. It is not on-demand. We will not rank it as such.
Indie labs whose data can move and whose security questionnaire is ‘please do not leak the weights.’
Sources
Prices and SKUs are from the GPUBeacon catalog sample. Ranking rules are on the methodology page. Outbound links may be affiliate. They never change the hour we display.
Keep comparing
Same fields, different product. Compare the GPU hour before you lock a brand.