# CoreWeave vs Vast.ai

Canonical: https://inetgeek.com/compare/coreweave-vs-vast-ai/

Every value below is read from CoreWeave's and Vast.ai's own documentation. See https://inetgeek.com/methodology/ for how.

## At a glance

| Criterion | CoreWeave | Vast.ai |
| --- | --- | --- |
| H100 SXM, per GPU-hour | $6.16 per GPU-hour for H100 SXM 80GB. CoreWeave sells the 8-GPU HGX H100 node at $49.24/hour on demand — the per-GPU figure is that divided by eight, ours rather than CoreWeave's, and you cannot rent one card. | Median $2.16 per hour for H100 SXM 80GB, with a floor of $1.33 from the cheapest host. Vast is a marketplace — the floor is one host's offer at one moment and the median is what the market is actually charging, so both move without anyone announcing anything. This figure is a snapshot, not a rate card. |
| Cheapest GPU, per hour | $1.25 per GPU-hour for L40, again as an 8-GPU node at $10.00/hour. A100 80GB nodes are $21.60/hour, or $2.70 per GPU. | Floor and median vary by card and by the hour; H100 PCIe runs from $1.87 with a median of $2.67, and H200 from $1.97 with a median of $4.24. The H200 floor now sits below the H100 PCIe median, which is the kind of inversion a marketplace produces and a rate card cannot. |
| Largest GPU offered | 288GB per GPU on B300-class hardware; the largest listed on-demand node is HGX B200 at 180GB per GPU, eight GPUs, $68.80/hour. | 192GB per GPU on B200, from $4.38 an hour with a median of $7.50. |

## Where they differ

### H100 SXM, per GPU-hour

- CoreWeave: $6.16 per GPU-hour for H100 SXM 80GB. CoreWeave sells the 8-GPU HGX H100 node at $49.24/hour on demand — the per-GPU figure is that divided by eight, ours rather than CoreWeave's, and you cannot rent one card. ([source](https://www.coreweave.com/pricing))
- Vast.ai: Median $2.16 per hour for H100 SXM 80GB, with a floor of $1.33 from the cheapest host. Vast is a marketplace — the floor is one host's offer at one moment and the median is what the market is actually charging, so both move without anyone announcing anything. This figure is a snapshot, not a rate card. ([source](https://vast.ai/pricing))

### Cheapest GPU, per hour

- CoreWeave: $1.25 per GPU-hour for L40, again as an 8-GPU node at $10.00/hour. A100 80GB nodes are $21.60/hour, or $2.70 per GPU. ([source](https://www.coreweave.com/pricing))
- Vast.ai: Floor and median vary by card and by the hour; H100 PCIe runs from $1.87 with a median of $2.67, and H200 from $1.97 with a median of $4.24. The H200 floor now sits below the H100 PCIe median, which is the kind of inversion a marketplace produces and a rate card cannot. ([source](https://vast.ai/pricing))

### Largest GPU offered

- CoreWeave: 288GB per GPU on B300-class hardware; the largest listed on-demand node is HGX B200 at 180GB per GPU, eight GPUs, $68.80/hour. ([source](https://www.coreweave.com/pricing))
- Vast.ai: 192GB per GPU on B200, from $4.38 an hour with a median of $7.50. ([source](https://vast.ai/pricing))

## Which should you choose?

Pick CoreWeave if Training runs that want a whole HGX node and move large datasets — free egress and free I/O operations remove the charge that usually dominates a data-heavy job.

Pick Vast.ai if Price-sensitive training and batch inference that can tolerate a marketplace — the median H100 rate is well under half what the managed clouds charge, and interruptible capacity goes lower still.

Consider something else: CoreWeave — You cannot rent a single card: the H100 is sold as an eight-GPU node at $49.24 an hour, so a one-GPU experiment costs eight GPUs.

Consider something else: Vast.ai — There is no single price to plan against: rates move with supply, the host is not Vast itself, and an interruptible instance can be reclaimed mid-run.

## Documented by only one

- Pricing model: Vast.ai: A marketplace rather than a cloud: prices are set by supply and demand across more than 40 data centres, and the same card can be rented on demand, interruptibly, or reserved. Rates move continuously, which is why every figure here carries a 7-day re-verification window rather than the category's 30.
- Egress over allowance: CoreWeave: Free. CoreWeave charges nothing for egress or for I/O operations, and runs a zero-egress migration programme for moving data in.
- Storage price: CoreWeave: $0.06 per GB per month for hot AI object storage, and $0.070 per GB per month for the tier listed beside it.
- Reserved pricing: CoreWeave: Up to 60% below on-demand for reserved compute capacity.

## Questions this comparison answers

**Should I choose CoreWeave or Vast.ai?**

Pick CoreWeave if Training runs that want a whole HGX node and move large datasets — free egress and free I/O operations remove the charge that usually dominates a data-heavy job.
Pick Vast.ai if Price-sensitive training and batch inference that can tolerate a marketplace — the median H100 rate is well under half what the managed clouds charge, and interruptible capacity goes lower still.