Rent cloud GPUs by the second from a global marketplace
Estimated monthly website visits
Similarweb estimates for this domain, not active users. Only available observation months are shown; collection date is separate from the traffic period.
Collected Nov 11, 2026
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
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).
saved a fortune on training runs
interruptible instances can vanish mid-epoch
unbeatable spot pricing for 4090s
ssh setup is a bit raw for beginners
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
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.
Choose on-demand for guaranteed uptime, interruptible at 50%+ cheaper, or reserved terms at up to 50% off with guaranteed capacity.
Pay only for the compute you use with per-second billing and no minimum hours, so experiments and short jobs stay affordable.
Provision and optimize instances entirely through code using the CLI, Python SDK, or REST API, which also makes the platform agent-ready.
Launch pre-configured templates for popular open-source models, use serverless endpoints with autoscale-to-zero, or spin up multi-node clusters with InfiniBand.
Prices are set by supply and demand rather than by Vast, so you always see the real, programmatically queryable market rate.
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.
Spin up A100/H100/GB200-class instances by the second for training runs, then tear them down to control spend.
Serve popular open-source LLMs, image, and video models through serverless endpoints that autoscale to zero when idle.
Use cheap interruptible instances with checkpointing for fault-tolerant jobs like batch transcription or data processing.
Provision GPUs programmatically via the API so autonomous agents or internal platforms can procure compute without humans.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | Vast.ai | 1.26M | +2.8% | 75% direct | Paid | Current |
| 1 | RunPod Offers a polished managed Kubernetes cloud experience with better template stability, but can be slightly more expensive. | 2.88M | +5.9% | 57% direct | Paid | vs RunPod |
| 2 | Thunder Compute Provides instant persistent SSH instances with simple per-second billing, matching Vast.ai's developer-focused flexibility. | 102.15K | -29% | 40% direct | Paid (per-minute instances, per-second sandboxes) | vs Thunder Compute |
| 3 | Massed Compute Focuses on heavy enterprise bare-metal GPU clusters and dedicated servers rather than peer-to-peer consumer leasing. | 11.75K | -64.1% | 66% direct | Paid, Contact for Pricing | vs Massed Compute |
| 4 | Lium Specializes in agent-first per-second GPU rentals, closely mirroring Vast.ai's developer and agent-centric workflow. | 58.48K | -13.9% | 70% direct | Paid | vs Lium |
| 5 | TensorDock Delivers a similar cloud GPU marketplace model with competitive pricing, but features a slightly smaller hardware inventory. | 19.69K | -23.3% | 32% direct | Paid | vs TensorDock |
| 6 | Salad Leverages distributed idle consumer hardware to deliver significantly cheaper inference and container workloads, with lower reliability guarantees. | 713.52K | +10.4% | 62% direct | Free Trial, Paid, Contact for Pricing | vs Salad |
Offers a polished managed Kubernetes cloud experience with better template stability, but can be slightly more expensive.
Offers a polished managed Kubernetes cloud experience with better template stability, but can be slightly more expensive.
Provides instant persistent SSH instances with simple per-second billing, matching Vast.ai's developer-focused flexibility.
Provides instant persistent SSH instances with simple per-second billing, matching Vast.ai's developer-focused flexibility.
Focuses on heavy enterprise bare-metal GPU clusters and dedicated servers rather than peer-to-peer consumer leasing.
Focuses on heavy enterprise bare-metal GPU clusters and dedicated servers rather than peer-to-peer consumer leasing.
Specializes in agent-first per-second GPU rentals, closely mirroring Vast.ai's developer and agent-centric workflow.
Specializes in agent-first per-second GPU rentals, closely mirroring Vast.ai's developer and agent-centric workflow.
Delivers a similar cloud GPU marketplace model with competitive pricing, but features a slightly smaller hardware inventory.
Delivers a similar cloud GPU marketplace model with competitive pricing, but features a slightly smaller hardware inventory.
Free / Open-sourceLeverages distributed idle consumer hardware to deliver significantly cheaper inference and container workloads, with lower reliability guarantees.
Free / Open-sourceLeverages distributed idle consumer hardware to deliver significantly cheaper inference and container workloads, with lower reliability guarantees.
Builds large-scale data center GPU clusters tailored for heavy model training, lacking peer-to-peer spot pricing.
Builds large-scale data center GPU clusters tailored for heavy model training, lacking peer-to-peer spot pricing.
Provides enterprise-grade AI cloud infrastructure with managed ML tools, replacing peer-to-peer rentals with reliable data centers.
Provides enterprise-grade AI cloud infrastructure with managed ML tools, replacing peer-to-peer rentals with reliable data centers.
SpecialistServerless cloud infrastructure for AI and data workloads
SpecialistServerless cloud infrastructure for AI and data workloads
SpecialistTogether AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all backed by in-house systems research.
SpecialistTogether AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all backed by in-house systems research.
