Updated March 10, 2026
RunPod is a cloud GPU platform offering on-demand and spot GPU instances for AI training, inference, and development. Known for competitive pricing and a simple developer experience, RunPod provides NVIDIA A100, H100, and consumer-grade GPUs with serverless endpoints, persistent storage, and Docker-based environments. Popular with indie developers, researchers, and startups for running Stable Diffusion, LLM fine-tuning, and custom AI workloads.
Vast.ai is a decentralized GPU marketplace that connects GPU owners with AI developers, offering some of the lowest prices in the market through auction-based pricing. The platform provides access to a wide range of GPUs from consumer-grade to data center hardware for training, fine-tuning, and inference workloads.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Pros
Cons
Choose RunPod if you wantChoose if you want
Choose Vast.ai if you wantChoose if you want
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.