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The Deploy Log | Tools and products

Vercel Fluid cold starts

Vercel delivers zero cold starts for 99.37% of all requests through scale to one, Fluid compute, predictive scaling, bytecode caching, and rolling releases, with single instances handling peaks above 250 concurrent requests.

Vercel | In Edition 1, Saturday 20 Sep 2025

SOURCE Vercel, Scale to one: How Fluid solves cold starts

Added to The Deploy Log Tuesday 15 Sep 2026, updated Thursday 17 Sep 2026. Read Edition 1, the edition that carried it.

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