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Substack moved both training and deployment of nearly all its ML models from AWS SageMaker to Modal.

substack.com
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Sources last verified Jul 27, 2026

Inference & Serving

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Modal

Runs ML training and deployment, replacing AWS SageMaker.

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  • “For nearly all these models Substack has moved both training and deployment from AWS SageMaker to Modal.” — modal.com, May 20, 2024

Source last verified Jul 27, 2026