Baseten's MCM system is a unified control layer that provisions and scales thousands of GPUs across multiple clouds and regions. The system offers three deployment modes: Baseten Cloud, Self-hosted, and Hybrid, each sharing the same inference stack. Baseten Cloud provides fully managed, multi-cloud scale and latency optimization, while Self-hosted allows for full control over data, compute, and networking. The Hybrid model combines self-hosting with optional, elastic spillover to Baseten Cloud for dynamic routing and on-demand flex capacity. The MCM system delivers 99.99% uptime, lowest-possible latency, data-residency compliance, and freedom from vendor lock-in, making it suitable for various workloads and use cases.