CloudGPU lets developers rent on-demand GPUs (RTX 4090, RTX 5090, A100, H100) straight from the browser. Pick a GPU, click Deploy, and the instance is ready in about 2 minutes for fine-tuning, inference, ComfyUI, Ollama, LLaMA-Factory or JupyterLab. Billing is per minute (rounded up, 1-minute minimum) and unused time is refunded when you stop. The same prepaid balance also pays for an OpenAI-compatible API (https://cloudgpu.app/v1) for open models, so one account covers both hosted inference and your own GPU. Pay as you go, no subscription.