Modal: Scaling to a Million Sandboxes in Seconds
thundergolfer · hn · 2026-07-17
Modal published an engineering blog detailing how they **scale to 1 million concurrent sandboxes in seconds**. The article focuses on the scaling strategy, scheduling, and execution architecture of the sandbox system, explaining how this design supports massive concurrency. It serves as a practical case study in AI infrastructure rather than standard product marketing.
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