Nebula Block vs Vast.ai
As of , Nebula Block and Vast.ai share 4 GPUs today, but on none do both list an on-demand rate: at least one side is community capacity or a marketplace floor, compared below and not counted. Not compared today: 1 more shared GPU, where one side's quote is not confirmed within 48 hours or is a thin market. On the priciest shared card, NVIDIA A100 80GB: Nebula Block $1.43 vs Vast.ai $1.07 (Multi-GPU machines · floor) per GPU-hour — not the same market, not counted.
On-demand, per GPU-hour
| GPU |  Nebula Block |  Vast.ai | Difference | Cheaper |
|---|---|---|---|---|
| NVIDIA A100 80GB median $1.99 · 63 providers · lowest CloudRift $1.05 | $1.43 captured Deploy ↗ | $1.07 Multi-GPU machines · floor captured Deploy ↗ | — | not the same market |
| NVIDIA RTX 5090 median $0.81 · 20 providers · lowest HexGrid $0.55 | $1.02 captured Deploy ↗ | $0.50 floor captured Deploy ↗ | — | not the same market |
| NVIDIA RTX A6000 median $0.59 · 21 providers · lowest Thunder Compute $0.35 | $0.56 captured Deploy ↗ | $0.40 floor captured Deploy ↗ | — | not the same market |
| NVIDIA RTX A4000 median $0.23 · 11 providers · lowest GPU.ai $0.12 from | $0.17 captured Deploy ↗ | $0.09 floor captured Deploy ↗ | — | not the same market |
Shared, not compared today
Both providers quoted these GPUs on-demand within the last 7 days, but at least one quote is not confirmed within 48 hours of the newest read (or is a marketplace floor withheld as too thin), and an unconfirmed price never decides which is cheaper. They return to the table above at the next read that confirms them.
- NVIDIA L40: Vast.ai: thin market
How this is compared
Cloud GPU rental prices of Nebula Block and Vast.ai, compared per GPU-hour on the GPUs both list. Where a provider has several tiers or regions, its cheapest on-demand rate is used and labelled. Community capacity (RunPod Community Cloud) and marketplace floors are shown only where a provider has nothing else, and never decide which is cheaper.
GPU by GPU
- NVIDIA A100 80GB: Nebula Block $1.43 vs Vast.ai $1.07 (Multi-GPU machines · floor) per GPU-hour — not the same market, not counted.
- NVIDIA RTX 5090: Nebula Block $1.02 vs Vast.ai $0.50 (floor) per GPU-hour — not the same market, not counted.
- NVIDIA RTX A6000: Nebula Block $0.56 vs Vast.ai $0.40 (floor) per GPU-hour — not the same market, not counted.
- NVIDIA RTX A4000: Nebula Block $0.17 vs Vast.ai $0.09 (floor) per GPU-hour — not the same market, not counted.
Not compared: GPUs only one of the two lists, reserved/committed tiers, and anything either provider prices only on request. See each provider's page for its full list.
Data updated: