Best Vast.ai Alternatives in 2026

Baseten is a managed inference platform for deploying custom and fine-tuned AI models to production as autoscaling APIs. With Truss packaging, Chains pipelines, and HIPAA compliance, it targets ML teams shipping their own models, and it is backed by an NVIDIA-led 2026 round.

DeepInfra is a low-cost, OpenAI-compatible inference API for 150+ open models, processing trillions of tokens a week on its own GPU stack. It is among the cheapest providers, with documented price-stability and support trade-offs to weigh.

RunPod is a GPU cloud platform with on-demand and spot instances from $0.17/hr, serverless inference endpoints with sub-200ms cold starts, and a template library covering Stable Diffusion, Llama, ComfyUI, and more. Built for AI developers who need flexible GPU access without hyperscaler pricing.

Nebius is a Nasdaq-listed AI cloud offering large-scale NVIDIA GPU compute plus the Token Factory inference API for open models. EU data residency, enterprise governance, and an NVIDIA investment make it a serious option for training and production inference.

Fireworks AI is an inference platform that runs open-source and custom models on a fast, OpenAI-compatible API. Built by ex-Meta PyTorch engineers, its FireAttention engine targets best-in-class throughput, which is why latency-sensitive products like Cursor and Notion run on it.

CoreWeave is a specialized GPU cloud built for enterprise AI training and inference. With 250,000+ GPUs across 32 data centers, InfiniBand-backed clusters, and NVIDIA's latest Blackwell hardware, it powers some of the largest AI labs in the world, including OpenAI, Meta, IBM, and Microsoft.

Lambda Labs provides GPU cloud compute for AI researchers and machine learning engineers: on-demand H100 and B200 instances with PyTorch pre-installed, and 1-Click Clusters with InfiniBand networking for large-scale distributed training.

Novita AI is a pay-as-you-go cloud that puts 200+ LLM, image, video, and audio models behind one OpenAI-compatible API, alongside rentable GPUs. It is cheap and broad, and one of the few infrastructure tools with an open cash affiliate program.

kie.ai is a generative-media API aggregator that puts dozens of video, image, and audio models behind one key and one credit balance. It trades official-grade reliability for low pay-as-you-go pricing, which makes it popular for automated content pipelines and multi-model prototyping.

Modal is a serverless GPU platform that lets Python developers run AI workloads on cloud GPUs without touching infrastructure. Write a function, add a decorator, and Modal handles containers, scaling, and billing down to the second.