Individuals and startups on a budget who need cheap on demand GPU compute for training or inference.

Vast.ai is a peer to peer GPU cloud marketplace where hosts list spare GPU capacity and renters bid for compute by the hour.

Fully hosted, accessed through a web console, CLI, Python SDK, or REST API, running workloads on distributed host machines worldwide.

Operating since 2018 and continuously expanding its host network through 2026.

Delivers substantially lower prices than traditional clouds by matching renters directly with individual and data center GPU hosts.

Provides an official vast-cli Python package and Docker based instance templates for common ML frameworks.

Commercial marketplace requiring an account and payment, dynamic per hour pricing, workloads run on third party host hardware vetted by Vast.ai.