# Vast.ai

According to OpenAITools.app telemetry verified on 2026-11-11, Vast.ai (vast.ai) is an AI platform indexed under AI Developer Tools generating 1.26M monthly visits with a month-over-month traffic delta of +34.24K (+2.8%). Its primary geographic market is United States (16.7% traffic share), and it operates on a Paid pricing model. Top competing alternatives by monthly volume include RunPod (2.88M visits/mo), Thunder Compute (102.15K visits/mo), Massed Compute (11.75K visits/mo).

Rent cloud GPUs by the second from a global marketplace

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Vast.ai |
| Handle | vast-ai |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | vast.ai |
| Website URL | https://vast.ai |
| Categories | AI Developer Tools, Large Language Models (LLMs), AI Image Generator, AI Video Generator, AI Transcription |
| Pricing Model | Paid |
| Monthly Visits | 1,257,554 |
| MoM Traffic Change | 34,244 |
| MoM Growth Rate | +2.8% |
| Primary Market | United States |
| Market Share | 16.7% |
| Direct Visits | 937,107 |
| Organic Search Visits | — |
| Social Visits | — |
| Referral Visits | 34,766 |
| Email Visits | 9,617 |
| Review Score | 4.6 |
| Saved Count | 2 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Paid |
| Tags | GPU rental, Cloud compute, AI cloud, Deep learning, HPC, Data security, Regulatory compliance, Benchmarking, On-demand, Interruptible, Reserved pricing |

## Overview

Vast.ai is a compute marketplace for AI: instead of a single closed cloud, it aggregates 20,000+ GPUs from a global network of hosts and data centers and lets you rent them by the second. Because prices are set by supply and demand rather than fixed by the vendor, you can often find substantially lower rates than traditional cloud pricing, and you can filter by GPU model, VRAM, price, and availability through the console or API. Setup is deliberately fast — you add credit, grab an API key, and can be running a workload in under five minutes.

The platform offers three ways to deploy. GPU Cloud gives you on-demand instances with full control across 40+ data centers and more than 60 GPU types, from consumer cards up to NVIDIA GB200s. Serverless lets you deploy models as endpoints with automatic benchmarking and optimization across GPU types, scaling to zero so you pay only for compute time. Clusters provide dedicated multi-node GPU capacity with InfiniBand networking for large-scale training. Pricing comes in three tiers: on-demand for guaranteed uptime, interruptible instances that are 50%+ cheaper for fault-tolerant batch work, and reserved 1-, 3-, or 6-month terms at up to 50% off.

Vast.ai is built for developers and, increasingly, for AI agents. Every GPU is provisioned through code, whether via the CLI, the Python SDK, or the REST API, and the platform markets itself as agent-ready infrastructure where agents can autonomously design, procure, and optimize their own compute. A Model Library provides pre-configured templates for popular open-source models, and the platform advertises SOC 2 certification, 700K+ monthly transactions, and a broad set of use cases spanning LLM inference, image and video generation, transcription, fine-tuning, and rendering.

## Pricing & Plans

Vast.ai is a paid, usage-based GPU marketplace. Billing is per second with no minimum hours, and you can start with as little as $5 in credit. Three tiers are offered: on-demand for guaranteed uptime, interruptible instances at 50%+ cheaper for fault-tolerant work, and reserved 1-, 3-, or 6-month terms at up to 50% off with guaranteed capacity. Prices are set by market supply and demand.

## Key Features & Capabilities

- **Marketplace of 20,000+ GPUs:** Rent from a global pool of 20,000+ GPUs spanning more than 60 GPU types, from RTX 3060-class cards to GB200s, across 40+ data centers.
- **On-demand, interruptible & reserved tiers:** Choose on-demand for guaranteed uptime, interruptible at 50%+ cheaper, or reserved terms at up to 50% off with guaranteed capacity.
- **Per-second billing:** Pay only for the compute you use with per-second billing and no minimum hours, so experiments and short jobs stay affordable.
- **API-native deployment:** Provision and optimize instances entirely through code using the CLI, Python SDK, or REST API, which also makes the platform agent-ready.
- **GPU Cloud, Serverless & Clusters:** Launch pre-configured templates for popular open-source models, use serverless endpoints with autoscale-to-zero, or spin up multi-node clusters with InfiniBand.
- **Transparent market pricing:** Prices are set by supply and demand rather than by Vast, so you always see the real, programmatically queryable market rate.

## Primary Use Cases

- **Training and fine-tuning models (ML engineers):** Spin up A100/H100/GB200-class instances by the second for training runs, then tear them down to control spend.
- **Running inference endpoints (AI developers):** Serve popular open-source LLMs, image, and video models through serverless endpoints that autoscale to zero when idle.
- **Batch jobs and transcription (Data teams):** Use cheap interruptible instances with checkpointing for fault-tolerant jobs like batch transcription or data processing.
- **Agent-driven compute provisioning (Platform & agent builders):** Provision GPUs programmatically via the API so autonomous agents or internal platforms can procure compute without humans.

## Strengths

- Access to 20,000+ GPUs and 68+ GPU types on one platform
- Per-second billing with no minimum hours or lock-in
- Interruptible and reserved tiers can cut costs substantially
- Fully API-, CLI-, and SDK-driven deployment
- Serverless and multi-node cluster options beyond raw instances

## Limitations

- Host quality and reliability vary across independent providers
- Interruptible instances can be reclaimed mid-job
- Requires comfort with CLI, SDK, or API workflows
- Pricing fluctuates with supply and demand, so budgets need monitoring
- Support for hosted instances depends on the individual host

## Frequently Asked Questions

### What is Vast.ai and how is it different from a normal cloud?
Vast.ai connects you with GPUs supplied by a wide range of hosts and data centers rather than owning a single closed cluster. Prices are set by market supply and demand, billing is per second, and everything is provisionable through a CLI, Python SDK, or REST API.

### How much does it cost to get started?
You can start with as little as $5 in credit and get an API key from the console — no contracts or sales calls. Instances launch in seconds and you can scale up or down programmatically.

### What is the difference between on-demand, interruptible, and reserved?
On-demand gives guaranteed uptime with per-second billing; interruptible instances are 50%+ cheaper but preemptible; reserved pricing offers up to 50% off on 1, 3, or 6 month terms with guaranteed capacity. Choose based on how tolerant your workload is to interruption.

### Can I run common AI models on Vast.ai?
Yes. It offers major AI/ML frameworks via templates and a Model Library, plus use cases like LLM text generation, image and video generation, batch data processing, audio-to-text transcription, fine-tuning, and rendering. There is also a serverless option for zero-ops inference.

### Is Vast.ai secure and compliant?
The platform is SOC 2 certified, lists 40+ data centers, and uses per-second billing with transparent, programmatically queryable prices. You should still evaluate individual host reliability for production workloads.

### What is Vast.ai's monthly traffic and growth trend?
Vast.ai currently receives 1.26M monthly visits, with a month-over-month traffic change of +34.24K (+2.8% growth rate). Its primary source market is United States (16.7% share), including 937.11K direct visits/mo and — organic search visits/mo.

### Is Vast.ai free? What is its pricing model?
Vast.ai operates on a Paid pricing model. Vast.ai is a paid, usage-based GPU marketplace. Billing is per second with no minimum hours, and you can start with as little as $5 in credit. Three tiers are offered: on-demand for guaranteed uptime, interruptible instances at 50%+ cheaper for fault-tolerant work, and reserved 1-, 3-, or 6-month terms at up to 50% off with guaranteed capacity. Prices are set by market supply and demand. Supported billing and checkout platforms include: not listed.

### What are the best Vast.ai alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Vast.ai are: 1. RunPod (2.88M visits/mo); 2. Thunder Compute (102.15K visits/mo); 3. Massed Compute (11.75K visits/mo); 4. Lium (58.48K visits/mo); 5. TensorDock (19.69K visits/mo).

### Which platforms and core AI capabilities does Vast.ai support?
Vast.ai is classified under AI Developer Tools, Large Language Models (LLMs), AI Image Generator, AI Video Generator, supports the following platforms: Website, and its core capability tags include: GPU rental, Cloud compute, AI cloud, Deep learning, HPC, Data security.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [RunPod](https://openaitools.app/tool/runpod) | 2,881,043 | Paid | [Compare](https://openaitools.app/compare/runpod-vs-vast-ai) |
| [Thunder Compute](https://openaitools.app/tool/thunder-compute) | 102,147 | Paid (per-minute instances, per-second sandboxes) | [Compare](https://openaitools.app/compare/thunder-compute-vs-vast-ai) |
| [Massed Compute](https://openaitools.app/tool/massedcompute-com) | 11,752 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/massedcompute-com-vs-vast-ai) |
| [Lium](https://openaitools.app/tool/lium-io) | 58,483 | Paid | [Compare](https://openaitools.app/compare/lium-io-vs-vast-ai) |
| [TensorDock](https://openaitools.app/tool/tensordock) | 19,689 | Paid | [Compare](https://openaitools.app/compare/tensordock-vs-vast-ai) |
| [Salad](https://openaitools.app/tool/salad-gpu-cloud) | 713,519 | Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/salad-gpu-cloud-vs-vast-ai) |
| [FluidStack](https://openaitools.app/tool/fluidstack) | 154,620 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/fluidstack-vs-vast-ai) |
| [Nebius](https://openaitools.app/tool/nebius) | 1,145,711 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/nebius-vs-vast-ai) |
| [Modal](https://openaitools.app/tool/modal-com) | 1,196,021 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/modal-com-vs-vast-ai) |
| [Together AI](https://openaitools.app/tool/together-ai) | 1,645,930 | Freemium, Paid | [Compare](https://openaitools.app/compare/together-ai-vs-vast-ai) |
| [DeepInfra](https://openaitools.app/tool/deep-infra) | 457,810 | Paid | [Compare](https://openaitools.app/compare/deep-infra-vs-vast-ai) |

[Vast ai](https://discord.gg/hSuEbSQ4X8)

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Source: https://openaitools.app/tool/vast-ai