System Constraints & Usage Limits on Comfy Cloud

Last updated: May 20, 2026

⚠️ Note: This article is for Comfy Cloud users. FAQ for ComfyUI Local — all open-source versions such as the desktop app, manual, or portable setups via GitHub — is coming soon. See also : Q. How is Comfy Cloud different from the regular ComfyUI?

 

Q: How many workflows can I run at the same time?

A: On Comfy Cloud, you can run one workflow at a time and queue up to 5 workflows to run sequentially.

 

Q: How long can my workflow run for?

A:

  • Currently: Each workflow can run for up to 30 minutes per execution.

  • From Dec 8, 2025: Workflows will be able to run for up to 1 hour on the Pro plan. 

 

 

Q. Is there a daily GPU usage limit?

A. Currently you can use up to 8 GPU hours per day. GPU hours only count when your workflow is actively running, not while editing or building.

 

 

Q: What kind of GPUs are used on Comfy Cloud?

A: A. Comfy Cloud now runs on Blackwell RTX 6000 Pros

  • 96GB VRAM

  • 180GB RAM

This upgrade replaced the previous NVIDIA A100 (40GB VRAM) machines in mid-November.