Build an AI coding platform that scales to millions of monthly sessions

What this post added

This post demonstrates the scalability of Modal Sandboxes by building and analyzing 'Modal Vibe,' a demo AI coding platform capable of supporting millions of monthly sessions. It details the architecture of a scalable vibe coding platform, highlighting the challenges of managing a large fleet of sandboxes and how Modal addresses these through its fast boot times, high sandbox production rates, and ability to run tens of thousands of sandboxes in parallel. Performance metrics are provided, showing increasing throughput as the number of sandboxes scales from 1 to 1000, with the AI API becoming the bottleneck. The post also references other use cases like Poe and Zencastr to further illustrate the platform's capabilities at scale.