Vast.ai
Rent GPUs for AI and ML at real-time, transparent prices.
At a glance
Starts at
from $5 per month
Price as published by the vendor, September 2026.
Free tier
No
Platforms
Web, API
Best for
AI developers, ML teams
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
Vast.ai offers flexible GPU rentals with per-second billing. Ideal for scaling training jobs but may be overpriced for static workloads.
✓What it does well
Real-Time PricingPricing is set by supply and demand across multiple data centers.
Programmatic AccessAPI-native provisioning with Python SDK and CLI for easy deployment.
Multiple Instance TypesOffers on-demand, interruptible, and reserved instances to match different needs.
✕Where it falls short
Limited Fixed Term OptionsOnly offers one- or three-month terms for reserved instances; no six-month option available.
Higher Costs for Reserved InstancesReserved instances cost up to 50% more than on-demand and interruptible options.
No Free TierDoes not offer a free tier, requiring at least $5 to start.
Key features
GPU Cloud InstancesOn-demand instances across multiple data centers and GPU types.
Serverless InferenceAuto-scaling endpoints for zero-ops inference deployments.
Clusters for Large-Scale TrainingDedicated clusters with InfiniBand networking for large-scale training jobs.
Earnings CalculatorCalculate potential savings with reserved instances.