Vast.ai GPU Marketplace

Vast.ai is a peer-to-peer GPU marketplace where GPU owners lease spare capacity to compute users. Instead of renting from hyperscalers (AWS, GCP, Azure) at premium prices, you rent directly from providers (miners, researchers, companies with extra GPUs) at lower rates. Cost savings are significant: 50–90% cheaper than cloud providers. You browse available GPUs, place a bid or accept fixed pricing, SSH into the instance, and run your code. Vast provides templates, Docker support, and billing. Trade-off: less support, variable availability, no guaranteed SLA.