Modal vs Vast.ai
8 GPUs in common. Modal is cheaper on 3, Vast.ai on 5; on average Vast.ai is 22% below Modal.
Prices collected 2026-09-18
Every GPU both price
| GPU | Modal | Vast.ai | Difference | Market |
|---|---|---|---|---|
 NVIDIA B300 | $7.10 | $9.38 | Modal −24% | $7.85 |
| NVIDIA B200 | $6.25 | $8.75 | Modal −29% | $6.59 |
| NVIDIA H200 | $4.54 | $4.67 | Modal −3% | $4.45 |
| NVIDIA H100 SXM | $3.95 | $3.45 | Vast.ai −13% | $3.50 |
| NVIDIA RTX PRO 6000 Blackwell | $3.03 | $1.47 | Vast.ai −51% | $2.05 |
| NVIDIA A100 80GB | $2.50 | $0.80 | Vast.ai −68% | $1.79 |
| NVIDIA L40S | $1.95 | $0.80 | Vast.ai −59% | $1.47 |
| NVIDIA L4 | $0.80 | $0.33 | Vast.ai −59% | $0.80 |
Only one of them has it
Questions
Is Modal or Vast.ai cheaper?
On the 8 GPUs both price on 2026-09-18, Modal is cheaper on 3 and Vast.ai on 5. On average Vast.ai is 22% cheaper than Modal across those GPUs. The table shows each one; the gap is rarely uniform.
What does one have that the other does not?
Modal alone prices A100 40GB, A10, T4; Vast.ai alone prices H200 NVL, H100 NVL, H100 PCIe, L40, A40, RTX 4090, RTX 6000 Ada, RTX 5090, RTX A6000, RTX 5080, RTX 4080, RTX 3090, RTX A5000, V100 16GB, RTX A4000. They are different kinds of provider — Modal is a neocloud, Vast.ai a marketplace — which is most of why the prices differ.
Where do these prices come from?
Modal: Public pricing page, parsed. Per-GPU price is the listed per-GPU rate, or the node price divided by GPU count. Prices near reserved, committed or contract terms are discarded; anything outside a plausible range for the GPU is discarded. Vast.ai: Public offer search, verified and rentable hosts only. Each offer is one observation; on-demand rate, not interruptible bids. Both are read every six hours; nothing is estimated.