Vast.Ai

Vast.ai is a cloud GPU platform that helps developers, researchers, and AI teams access high-performance computing on demand. Its marketplace offers more than 20,000 GPUs across over 40 data centers, with pricing shaped by supply and demand and billing by the second. Users can compare GPU models, memory, prices, and availability, then launch instances through the web console, CLI, Python SDK, or REST API. Getting started requires as little as $5 in credit, and the company says workloads can be running within minutes.

The platform supports a broad range of uses, including AI and machine-learning training, inference, fine-tuning, text and image generation, audio transcription, batch processing, virtual computing, GPU programming, and graphics rendering. Vast.ai also offers serverless model endpoints with automatic benchmarking and scaling, dedicated multi-node clusters with InfiniBand networking, and a library of ready-to-deploy model templates. Additional offerings include hosting, data-center services, financing, and an earnings calculator. Vast.ai positions its infrastructure as programmatic and suitable for both developers and AI agents, enabling teams to provision and scale compute without long-term contracts.