

Two GPU specialist providers, priced against each other on the 3 GPUs both of them rent. Published per-GPU on-demand rates as each provider last stated them, with what their own pages say about billing, commitment and egress beside the numbers.
Massed Compute is cheaper on 3 of the 3 cards both of them rent, by a median of 34%.
The 3 cards both of them rent, cheapest published per-GPU on-demand rate each. Dearest first.
| GPU | Massed Compute | Together AI | Difference |
|---|---|---|---|
| NVIDIA B300 SXM6 288GB | $6.60/hr | $9.99/hr | 34% cheaper on Massed Compute |
| NVIDIA B200 SXM6 180GB | $5.43/hr | $8.19/hr | 34% cheaper on Massed Compute |
| NVIDIA H100 SXM5 80GB | $2.73/hr | $3.99/hr | 32% cheaper on Massed Compute |
Per GPU per hour, on-demand list prices as each provider last published them. Rates exclude tax and vary by region; a cheaper rate is not the same machine, the same network or the same support.
| Massed Compute | Together AI | |
|---|---|---|
| Billing granularityOn short jobs this outweighs the rate: an hour minimum on a 90-second run costs more than a 30% dearer per-second rate. | Per minute | Hourly for clusters; per token, megapixel or second for serverless |
| Minimum commitment | None; prepaid balance with $5 minimum threshold | $5 minimum credit; no term on on-demand |
| Payment model | Prepaid balance with automatic recharge | Prepaid credits, then invoices with itemised usage |
| Free credits | Referral credit 3% of referred spend; coupon codes | None — no free trials |
| Egress | Free | FREE on managed storage |
| Uptime SLA | 99.999% claimed on product page; no SLA document found | not stated |
| Regions | US regions (e.g. us-central-3); locations not named | not stated |
Neither site tells you whether you get credits when it breaks, how fast support answers, whether a commitment auto-renews or how long you have to dispute a bill. We looked on both and record the absence rather than filling it in — if you need any of it, ask before you commit.
Massed Compute is cheaper on 3 of the 3 cards both of them rent, by a median of 34%.
NVIDIA B300 SXM6 288GB, NVIDIA B200 SXM6 180GB, NVIDIA H100 SXM5 80GB — 3 in total, on published per-GPU on-demand rates.
Of the cards both rent, Massed Compute starts at $2.73 per GPU-hour and Together AI at $3.99.