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Vast ai

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GPU rental marketplace with per-second billing across thousands of GPUs, aimed at AI training, inference, and fine-tuning workloads.

What it does

Vast.ai is a cloud GPU marketplace where prices are set by real-time supply and demand across a large network of data centers. Users provision GPU instances via console, CLI, Python SDK, or REST API, choosing on-demand, interruptible, or reserved pricing tiers for workloads like model training, fine-tuning, and inference.

How to use: Use the search console to find GPUs based on your needs, choose from on-demand, interruptible, or reserved pricing, and deploy using templates or custom configurations.

Core features

On-demand GPU cloud with per-second billing
Interruptible instances at discounted rates for batch/fault-tolerant jobs
Reserved capacity with 1, 3, or 6-month terms for steady workloads
Serverless deployment with autoscale-to-zero for inference endpoints
Dedicated multi-node clusters with InfiniBand for large-scale training
Python SDK and CLI plus REST API for programmatic provisioning
Access to 68+ GPU types across 40+ data centers
Pre-configured templates for popular open-source models

Best for

→ML engineers training or fine-tuning models on rented GPUs
→Startups running inference at scale without owning hardware
→Developers needing quick, low-cost access to specific GPU types
→Teams building AI agents that autonomously provision compute
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Reviews

Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.

Runpod vs Vast.ai 2025: Which Cloud GPU Platform Should You Trust?
How To Tech · 10K views

Tutorials

Step-by-step: exactly how to get things done with it.

How to Use NVIDIA GLX Desktop on Vast.ai
Vast AI · 509K views
Vast.AI QuickStart Guide Walkthrough
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Vast.ai Setup Guide for Hosting | Start to Finish
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