B200 Reaches $4.00/hr as Blackwell Supply Broadens
May 12–18, 2026 · Published May 19, 2026 · GridStackHub Research
Blackwell pricing snapshot
According to GridStackHub.ai data for May 12–18, the B200 spot-market floor reached $4.00/hr on Vast.ai. This is the clearest signal yet that additional Blackwell capacity is reaching marketplace supply, although availability remains intermittent and should be confirmed before planning a sustained workload.
H100 on-demand pricing started at $1.38/hr on Thunder Compute. That spread keeps H100 the economical default for smaller inference and fine-tuning jobs, while B200 is most compelling when memory capacity and high-throughput inference offset its higher hourly rate.
What buyers should take away
For elastic workloads: compare spot availability and interruption policy before choosing the $4.00/hr B200 floor. For steady workloads: use the Reserved Instance Advisor to model commitment break-even. The live provider matrix is available in the GPU cloud pricing comparison.
Methodology
This issue summarizes provider-native hourly rates across the GridStackHub tracking network. Rates vary by region, instance size, pricing type, and availability. The Blackwell Price Index tracks current B200, B300, and GB200 movements between weekly issues.
Read the Week 16 report for the earlier market baseline, or return to the full GPU Cost Pulse archive.