Modal is testing an Arm server for its burst-oriented sandbox fleet, where CPU contention can slow agents and leave training GPUs idle.
By [Ryan Merket](https://runtimewire.com/author/ryan-merket)
· Published
Primary source: [Modal Newsroom](https://modal.com/blog/nvidia-vera-sandboxes)
Why it matters #
Modal is testing whether NVIDIA's Arm CPU can let it run more agent sandboxes per host while keeping task latency similar. If the result holds in production, it could improve utilization and reduce the CPU bottlenecks that slow agents and keep reinforcement-learning GPUs waiting.
Modal, whose founder and CEO is Erik Bernhardsson (@bernhardsson), is weighing whether NVIDIA's Vera CPU can ease a problem AI workloads make unusually visible: the computer running an agent can hold up the rest of the system.…
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