diff --git a/.circleci/config.yml b/.circleci/config.yml
index 60a5b6db83f6..385972ef21d8 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1011,7 +1011,7 @@ workflows:
                 requires:
                     - create-sandboxes
             - vitest-integration:
-                parallelism: 11
+                parallelism: 13
                 requires:
                     - create-sandboxes
             - test-portable-stories:
@@ -1106,7 +1106,7 @@ workflows:
                 requires:
                     - create-sandboxes
             - vitest-integration:
-                parallelism: 6
+                parallelism: 7
                 requires:
                     - create-sandboxes
             - test-portable-stories:
diff --git a/.circleci/src/workflows/daily.yml b/.circleci/src/workflows/daily.yml
index be7814aba520..0f31c5279609 100644
--- a/.circleci/src/workflows/daily.yml
+++ b/.circleci/src/workflows/daily.yml
@@ -54,7 +54,7 @@ jobs:
       requires:
         - create-sandboxes
   - vitest-integration:
-      parallelism: 11
+      parallelism: 13
       requires:
         - create-sandboxes
   - test-portable-stories:
diff --git a/.circleci/src/workflows/merged.yml b/.circleci/src/workflows/merged.yml
index 34b8fc22a199..bdf687d408a4 100644
--- a/.circleci/src/workflows/merged.yml
+++ b/.circleci/src/workflows/merged.yml
@@ -54,7 +54,7 @@ jobs:
       requires:
         - create-sandboxes
   - vitest-integration:
-      parallelism: 6
+      parallelism: 7
       requires:
         - create-sandboxes
   - test-portable-stories:
diff --git a/code/addons/vitest/src/constants.ts b/code/addons/vitest/src/constants.ts
index 7ef81afb73d3..05c92bc41a23 100644
--- a/code/addons/vitest/src/constants.ts
+++ b/code/addons/vitest/src/constants.ts
@@ -22,6 +22,7 @@ export const SUPPORTED_FRAMEWORKS = [
   '@storybook/nextjs',
   '@storybook/nextjs-vite',
   '@storybook/react-vite',
+  '@storybook/preact-vite',
   '@storybook/svelte-vite',
   '@storybook/vue3-vite',
   '@storybook/html-vite',
diff --git a/code/lib/cli-storybook/src/sandbox-templates.ts b/code/lib/cli-storybook/src/sandbox-templates.ts
index 49914b4088d9..c9f9302cfbf3 100644
--- a/code/lib/cli-storybook/src/sandbox-templates.ts
+++ b/code/lib/cli-storybook/src/sandbox-templates.ts
@@ -615,7 +615,7 @@ export const baseTemplates = {
     modifications: {
       extraDependencies: ['preact-render-to-string'],
     },
-    skipTasks: ['e2e-tests', 'bench', 'vitest-integration'],
+    skipTasks: ['e2e-tests', 'bench'],
   },
   'preact-vite/default-ts': {
     name: 'Preact Latest (Vite | TypeScript)',
@@ -628,7 +628,7 @@ export const baseTemplates = {
     modifications: {
       extraDependencies: ['preact-render-to-string'],
     },
-    skipTasks: ['e2e-tests', 'bench', 'vitest-integration'],
+    skipTasks: ['e2e-tests', 'bench'],
   },
   'qwik-vite/default-ts': {
     name: 'Qwik CLI Latest (Vite | TypeScript)',
diff --git a/docs/writing-tests/integrations/vitest-addon.mdx b/docs/writing-tests/integrations/vitest-addon.mdx
index 80e131d82fd2..50148d992e2c 100644
--- a/docs/writing-tests/integrations/vitest-addon.mdx
+++ b/docs/writing-tests/integrations/vitest-addon.mdx
@@ -5,11 +5,11 @@ sidebar:
   title: Vitest addon
 ---
 
-<If notRenderer={['react', 'vue', 'svelte', 'web-components']}>
+<If notRenderer={['react', 'preact', 'vue', 'svelte', 'web-components']}>
   
 <Callout variant="info">
 
-The Vitest addon is currently only supported in [React](?renderer=react), [Vue](?renderer=vue), [Svelte](?renderer=svelte), and [Web Components](?renderer=web-components) projects, which use the [Vite builder](../builders/vite.mdx) (or the [Next.js framework with Vite](../get-started/frameworks/nextjs.mdx#with-vite)).
+The Vitest addon is currently only supported in [React](?renderer=react), [Preact](?renderer=preact), [Vue](?renderer=vue), [Svelte](?renderer=svelte), and [Web Components](?renderer=web-components) projects, which use the [Vite builder](../builders/vite.mdx) (or the [Next.js framework with Vite](../get-started/frameworks/nextjs.mdx#with-vite)).
 
 If you are using a different renderer (such as Angular) or the Webpack builder, you can use the [Storyboook test runner](./test-runner.mdx) to test your stories.
 
@@ -18,7 +18,7 @@ If you are using a different renderer (such as Angular) or the Webpack builder,
 </If>
 {/* End non-supported renderers */}
 
-<If renderer={['react', 'vue', 'svelte', 'web-components']}>
+<If renderer={['react', 'preact', 'vue', 'svelte', 'web-components']}>
 
 Storybook's Vitest addon allows you to test your components directly inside Storybook. On its own, it transforms your [stories](../../writing-stories/index.mdx) into component tests, which test the rendering and behavior of your components in a real browser environment. It can also calculate project [coverage](../test-coverage.mdx) provided by your stories.
 
@@ -34,7 +34,7 @@ You can also run tests in watch mode, which will automatically re-run tests when
 
 Before installing, make sure your project meets the following requirements:
 
-- A Storybook framework that uses Vite (e.g. [`vue3-vite`](../../get-started/frameworks/vue3-vite.mdx), [`react-vite`](../../get-started/frameworks/react-vite.mdx), [`nextjs-vite`](../../get-started/frameworks/nextjs.mdx#with-vite), [`sveltekit`](../../get-started/frameworks/sveltekit.mdx), etc.)
+- A Storybook framework that uses Vite (e.g. [`vue3-vite`](../../get-started/frameworks/vue3-vite.mdx), [`react-vite`](../../get-started/frameworks/react-vite.mdx), [`preact-vite`](../../get-started/frameworks/preact-vite.mdx), [`nextjs-vite`](../../get-started/frameworks/nextjs.mdx#with-vite), [`sveltekit`](../../get-started/frameworks/sveltekit.mdx), etc.)
 - Vitest ≥ 3.0
     - If you're not yet using Vitest, it will be installed and configured for you when you install the addon
 - (optional) MSW ≥ 2.0