Vast

Vast.ai operates a GPU compute platform spanning on-demand instance rental, autoscaling serverless inference, dedicated multi-node clusters, a deployable model template library, and a supply-side hosting program. Buyers access capacity through a web console, command-line tools, a Python SDK, and REST APIs.

The marketplace aggregates GPUs from more than 350 independent hosts across over 40 data centers, covering NVIDIA architectures from consumer cards through datacenter accelerators, with Secure Cloud environments for regulated workloads.

GPU as a service is one of the fastest-growing segments of AI infrastructure. Market research projects the global GPU-as-a-service market expanding from USD 8.21 billion in 2025 to USD 26.62 billion by 2030, a compound annual growth rate of 26.5 percent, as inference workloads spread beyond frontier labs into products, agents, and enterprises.

Demand drivers include the shift from training to inference, AI-native products that make compute a core operating expense, and a long tail of developers and agents that contract-free, per-second pricing serves. For marketplace providers, that outlook favors platforms that can aggregate distributed supply and keep published pricing transparent as the category consolidates around a small set of infrastructure vendors.

Marketplace pricing lets supply competition push Vast.ai rates below published hyperscaler prices for comparable GPUs, with published comparisons on its product pages. Buyers can start without contracts or negotiated quotas and switch GPU types as needs change.

A distributed host network across many data centers gives access to a wide range of GPU architectures, and per-second billing with three pricing tiers matches spending to workload tolerance for interruption.

The marketplace model trades predictability for price: capacity comes from independent third-party hosts rather than owned data centers, so availability, hardware mix, and per-instance performance vary across listings and buyers must manage that variance themselves. Third-party comparisons consistently contrast Vast's lower raw hourly rates against the fixed pricing, managed reliability, and serverless convenience that competitors such as RunPod offer.

Enterprise integration depth is thinner than full-stack rivals, with no bring-your-own-cloud deployment option and no built-in database or DevOps tooling, and the self-serve buyer base creates a support burden that grows with usage. Teams that prioritize guaranteed uptime, compliance-ready operations, or turnkey workflows over cost savings tend to choose managed providers instead.

Vast.ai prices are set by supply and demand across hosts rather than by a fixed rate card, and the platform publishes live rates that update hourly. Buyers choose among on-demand, interruptible, and reserved tiers, with interruptible capacity advertised at roughly half the on-demand cost.

Billing is metered per second with no minimum hours, and reserved terms of one to six months carry guaranteed capacity and volume discounts. Hosts on the supply side set their own prices and rental terms for listed GPUs.