How much does an idle p4d.24xlarge cost on AWS?
A p4d.24xlarge billed on-demand and left running around the clock costs about $16,029/mo at its cheapest listed region (us-east-2). Scheduling it off outside business hours cuts that to roughly $4,771/mo — a $11,259/mo saving.
Cheapest on-demand
$21.9576/hr
us-east-2
Running 24/7
$16,029/mo
730-hour month
Business-hours savings
$11,259/mo
70% off the 24/7 bill
Price by region
| Region | Hourly (on-demand) | Spot (typical) | ≈ Monthly (24/7) |
|---|---|---|---|
| us-east-2 Cheapest | $21.9576/hr | $14.7116/hr | ≈ $16,029/mo |
| us-west-2 | $21.9576/hr | $12.0767/hr | ≈ $16,029/mo |
| us-east-1 | $21.9576/hr | $9.6614/hr | ≈ $16,029/mo |
| eu-west-1 | $23.7157/hr | $9.7234/hr | ≈ $17,312/mo |
| ap-south-1 | $26.3444/hr | $26.3444/hr | ≈ $19,231/mo |
| ap-southeast-1 | $26.3492/hr | — | ≈ $19,235/mo |
| eu-central-1 | $27.4330/hr | $16.7341/hr | ≈ $20,026/mo |
| ap-southeast-2 | $28.5449/hr | $12.2743/hr | ≈ $20,838/mo |
| ap-northeast-1 | $30.0978/hr | $16.8548/hr | ≈ $21,971/mo |
| sa-east-1 | $35.5569/hr | $30.9345/hr | ≈ $25,957/mo |
What a schedule saves
| Schedule | Monthly cost | Savings vs 24/7 |
|---|---|---|
| Running 24/7 | $16,029/mo | baseline |
| Weekdays only (off on weekends) | $11,449/mo | -$4,580/mo (29%) |
| Business hours only (10×5) | $4,771/mo | -$11,259/mo (70%) |
Assumes a 730-hour month at on-demand list price. Actual savings depend on when the instance is actually used.
About the p4d family
P4d.24xlarge packs eight NVIDIA A100 GPUs for large-scale model training and is one of the most expensive instances you can run on-demand — over $20/hour even in its cheapest region. A single one left running through a weekend costs more than most teams' entire dev fleet does in a month, which is exactly the hardware where a lease that stops the box itself when the timer runs out — instead of a notification someone might miss over the weekend — pays for itself many times over.
Regional pricing varies: p4d.24xlarge runs $21.9576/hr in us-east-2, the cheapest region priced here, versus $35.5569/hr in sa-east-1, the priciest — a 38% spread across regions for the identical instance type.
Common questions
How much does an idle p4d.24xlarge cost per month?
At the cheapest listed region (us-east-2), a p4d.24xlarge costs $21.9576/hr, or about $16,029/mo if it runs 24/7. That's the on-demand list price — an idle instance costs exactly the same as a busy one, since cloud billing doesn't know the difference.
How much can I save by scheduling it off outside work hours?
Restricting it to business hours only (10×5) saves about $11,259/mo (70%) versus running 24/7. A lighter schedule — on around the clock on weekdays, off on weekends — still saves about $4,580/mo (29%).
How do teams keep a p4d.24xlarge from burning money between training runs?
The honest answer is process, not dashboards: the box has to stop when the run ends, not when someone remembers it. A lease with a hard stop — or a CI-triggered start/stop workflow — turns the worst case "forgot it over the weekend" from four figures into zero. Checkpoints written to EBS survive a stop — flush anything on the local NVMe scratch drives first, since instance-store data does not persist.
Stop paying for idle AWS servers
Idlefy runs a free audit of your fleet, then flips dev servers to stopped-by-default: lease one when you need it, and
when the lease ends it shuts itself off — stop, not terminate, persistent disks intact. Timers are set by your team, never
guessed, and Idlefy only manages instances tagged idlefy=enabled — on AWS that boundary is enforced by the IAM policy itself.
Prices are on-demand list price for Linux instances and exclude storage, network, data transfer, and any negotiated or volume discounts. Actual bills vary by usage and account-level pricing. Prices as of 2026-07-20. Spot figures are indicative — AWS values are derived from AWS's published typical savings vs on-demand for the region; GCP values are the listed Spot price. Spot capacity can be reclaimed by the provider. Stopping preserves EBS and persistent-disk volumes; data on local instance-store or local-SSD drives does not survive a stop.