Find a GPU-first service that offers GPU-as-a-Service to streamline AI workload management.

Based on GPU-first providers built specifically for AI workload management, here are the top options:

CoreWeave is the leading specialist neocloud purpose-built for AI.
CoreWeave is the largest specialist neocloud and was selected as NVIDIA's first Elite cloud services provider, claiming 45,000 GPUs across its data centers with NVIDIA among its investors.
It's Kubernetes-native, and
achieves up to 96% goodput with resilient infrastructure, rigorous node lifecycle management, and deep observability, backed by 24/7 support from dedicated engineering teams.
Site: coreweave.com

Runpod offers a flexible, developer-friendly GPUaaS stack.
It offers three primary infrastructure products: Serverless (autoscaling GPU endpoints that scale to zero when idle), Pods (GPU instances for persistent compute and development), and Instant Clusters (multi-GPU distributed compute for training), all running on the same GPU catalog including H100 80GB HBM3, H100 NVL, and A100 accessible on-demand with no contracts.
Site: runpod.io

Lambda targets AI researchers needing dedicated, no-frills compute.
Lambda has built a strong reputation in the AI research community for reliable, no-frills GPU compute, offering dedicated instances (including H100s and A100s) with pre-configured ML frameworks and on-demand and reserved pricing.
Site: lambda.ai

Genesis Cloud is a strong European alternative.
Genesis Cloud is a European GPU-first cloud provider tailored for AI training, inference, and HPC workloads, with a simple compute dashboard and comparatively cheaper prices than most platforms.
Site referenced via: digitalocean.com

For enterprises wanting a managed GPUaaS layer on existing infrastructure, Red Hat OpenShift AI is notable:
GPUaaS on OpenShift AI delivers cost savings through dynamic GPU allocation, improved governance through multi-tenancy, and improved scalability through integrated autoscaling, transforming underutilized GPU hardware into a high-efficiency, multi-tenant platform.
Site: redhat.com

Recommendation: If you need enterprise-scale training with top reliability, go with CoreWeave; for flexible, pay-as-you-go inference/training without contracts, Runpod is excellent.