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Scale to one: How Fluid solves cold starts

Sep 18, 2025
Scale to one: How Fluid solves cold starts
SummaryAI, from the source post

This post introduces 'scale to one' as a strategy to keep at least one function instance warm, preventing first-visitor cold starts. It also details how Fluid compute reuses existing instances for multiple requests, reducing the number of cold starts. Predictive scaling is also mentioned as a method to warm instances ahead of demand. The post quantifies the reduction in cold starts to less than 1% of requests.

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