How AI Gateway runs on Fluid compute

This post details how Vercel's AI Gateway leverages Fluid compute and Active CPU Pricing for scalable and cost-efficient operation. It explains the architecture, including the use of Vercel's global delivery network for low-latency routing and in-region Redis for state management and caching. The post highlights Fluid's in-function concurrency model, which allows for server-like efficiency by reusing instances and persisting state across invocations, reducing network overhead and costs. It also describes the monitoring system that combines health checks with in-memory statistics from Fluid instances for self-correction and automatic adjustments.