# Fluid compute is now the default for new projects

By Steven Van · 2025-04-23

Fluid compute reuses function instances to cut costs by up to 85% for high-concurrency workloads, and existing projects can opt in from the dashboard.

New [Vercel](<https://creatorstoolbox.com/tools/vercel>) projects now run on Fluid compute by default, as of [April 23, 2025](<https://vercel.com/docs/functions/fluid-compute>). Vercel says the change follows Fluid's general availability, its use in large-scale production apps, and all v0.dev deployments shipping with it enabled.

Fluid compute reuses existing function instances before starting new ones. Vercel says this cuts costs by up to **85%** for high-concurrency workloads. Multiple invocations can share one instance on the Node.js and Python runtimes, and background work can continue after a response is sent using waitUntil.

Existing projects are not switched automatically. Fluid can be enabled from the project's Functions Settings in the dashboard, followed by a redeploy, or by setting "fluid": true in vercel.json for specific environments or deployments.

![How multiple requests are processed in the fluid compute model with optimized concurrency.](<https://7nyt0uhk7sse4zvn.public.blob.vercel-storage.com/docs-assets/static/docs/fluid/serverless-active-light.avif>)

How multiple requests are processed in Fluid compute with optimized concurrency

![Vercel](<https://www.google.com/s2/favicons?domain=vercel.com&sz=128>)

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[Original source](<https://vercel.com/docs/functions/fluid-compute>)

[Read Fluid compute is now the default for new projects on Creators Toolbox](<https://creatorstoolbox.com/blog/vercel-fluid-compute-is-now-the-default-for-new-projects>)

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Canonical source: https://creatorstoolbox.com/blog/vercel-fluid-compute-is-now-the-default-for-new-projects