diff --git a/core/api.txt b/core/api.txt
index 2f199c8533..b2d0e4cc8f 100644
--- a/core/api.txt
+++ b/core/api.txt
@@ -18,6 +18,7 @@ ion-accordion-group,prop,expand,"compact" | "inset",'compact',false,false
 ion-accordion-group,prop,mode,"ios" | "md",undefined,false,false
 ion-accordion-group,prop,multiple,boolean | undefined,undefined,false,false
 ion-accordion-group,prop,readonly,boolean,false,false,false
+ion-accordion-group,prop,shape,"rectangular" | "round" | "soft" | undefined,undefined,false,false
 ion-accordion-group,prop,theme,"ios" | "md" | "ionic",undefined,false,false
 ion-accordion-group,prop,value,null | string | string[] | undefined,undefined,false,false
 ion-accordion-group,event,ionChange,AccordionGroupChangeEventDetail<any>,true
diff --git a/core/src/components.d.ts b/core/src/components.d.ts
index b0f4ab5dc5..766b836a72 100644
--- a/core/src/components.d.ts
+++ b/core/src/components.d.ts
@@ -136,6 +136,10 @@ export namespace Components {
           * This method is used to ensure that the value of ion-accordion-group is being set in a valid way. This method should only be called in response to a user generated action.
          */
         "requestAccordionToggle": (accordionValue: string | undefined, accordionExpand: boolean) => Promise<void>;
+        /**
+          * Set to `"soft"` for an accordion group with slightly rounded corners, `"round"` for an accordion group with fully rounded corners, or `"rectangular"` for an accordion group without rounded corners.  Defaults to `"round"` for the `ionic` theme, undefined for all other themes. Only applies when `expand` is set to `"inset"`.
+         */
+        "shape"?: 'soft' | 'round' | 'rectangular';
         /**
           * The theme determines the visual appearance of the component.
          */
@@ -5392,6 +5396,10 @@ declare namespace LocalJSX {
           * If `true`, the accordion group cannot be interacted with, but does not alter the opacity.
          */
         "readonly"?: boolean;
+        /**
+          * Set to `"soft"` for an accordion group with slightly rounded corners, `"round"` for an accordion group with fully rounded corners, or `"rectangular"` for an accordion group without rounded corners.  Defaults to `"round"` for the `ionic` theme, undefined for all other themes. Only applies when `expand` is set to `"inset"`.
+         */
+        "shape"?: 'soft' | 'round' | 'rectangular';
         /**
           * The theme determines the visual appearance of the component.
          */
diff --git a/core/src/components/accordion-group/accordion-group.ionic.scss b/core/src/components/accordion-group/accordion-group.ionic.scss
index ce5953b04f..6341e0808e 100644
--- a/core/src/components/accordion-group/accordion-group.ionic.scss
+++ b/core/src/components/accordion-group/accordion-group.ionic.scss
@@ -12,9 +12,20 @@
 
 // Inset Accordion Group
 // --------------------------------------------------
-
 // Shape and padding only apply if the group is inset
+
 :host(.accordion-group-expand-inset) {
-  @include globals.border-radius(globals.$ion-border-radius-400);
   @include globals.padding(globals.$ion-space-100);
 }
+
+:host(.accordion-group-expand-inset.accordion-group-shape-round) {
+  @include globals.border-radius(globals.$ion-border-radius-400);
+}
+
+:host(.accordion-group-expand-inset.accordion-group-shape-soft) {
+  @include globals.border-radius(globals.$ion-border-radius-200);
+}
+
+:host(.accordion-group-expand-inset.accordion-group-shape-rectangular) {
+  @include globals.border-radius(globals.$ion-border-radius-0);
+}
diff --git a/core/src/components/accordion-group/accordion-group.tsx b/core/src/components/accordion-group/accordion-group.tsx
index 1e2caedb02..90417de7ba 100644
--- a/core/src/components/accordion-group/accordion-group.tsx
+++ b/core/src/components/accordion-group/accordion-group.tsx
@@ -60,6 +60,16 @@ export class AccordionGroup implements ComponentInterface {
    */
   @Prop() expand: 'compact' | 'inset' = 'compact';
 
+  /**
+   * Set to `"soft"` for an accordion group with slightly rounded corners,
+   * `"round"` for an accordion group with fully rounded corners, or
+   * `"rectangular"` for an accordion group without rounded corners.
+   *
+   * Defaults to `"round"` for the `ionic` theme, undefined for all other themes.
+   * Only applies when `expand` is set to `"inset"`.
+   */
+  @Prop() shape?: 'soft' | 'round' | 'rectangular';
+
   /**
    * Emitted when the value property has changed as a result of a user action such as a click.
    *
@@ -278,9 +288,26 @@ export class AccordionGroup implements ComponentInterface {
     return Array.from(this.el.querySelectorAll(':scope > ion-accordion')) as HTMLIonAccordionElement[];
   }
 
+  private getShape(): string | undefined {
+    const theme = getIonTheme(this);
+    const { shape } = this;
+
+    // TODO(ROU-11328): Remove theme check when shapes are defined for all themes.
+    if (theme !== 'ionic') {
+      return undefined;
+    }
+
+    if (shape === undefined) {
+      return 'round';
+    }
+
+    return shape;
+  }
+
   render() {
     const { disabled, readonly, expand } = this;
     const theme = getIonTheme(this);
+    const shape = this.getShape();
 
     return (
       <Host
@@ -289,6 +316,7 @@ export class AccordionGroup implements ComponentInterface {
           'accordion-group-disabled': disabled,
           'accordion-group-readonly': readonly,
           [`accordion-group-expand-${expand}`]: true,
+          [`accordion-group-shape-${shape}`]: shape !== undefined,
         }}
         role="presentation"
       >
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Chrome-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Chrome-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Chrome-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Firefox-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Firefox-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Firefox-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Safari-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Safari-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-compact-ionic-md-ltr-light-Mobile-Safari-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Chrome-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Firefox-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-expanded-ionic-md-ltr-light-Mobile-Safari-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Chrome-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Chrome-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Chrome-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Firefox-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Firefox-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Firefox-linux.png
diff --git a/core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Safari-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/expand/accordion.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Safari-linux.png
rename to core/src/components/accordion-group/test/expand/accordion-group.e2e.ts-snapshots/accordion-group-expand-inset-ionic-md-ltr-light-Mobile-Safari-linux.png
diff --git a/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts b/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts
new file mode 100644
index 0000000000..0fb0be24ac
--- /dev/null
+++ b/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts
@@ -0,0 +1,47 @@
+import { expect } from '@playwright/test';
+import { configs, test } from '@utils/test/playwright';
+
+configs({ directions: ['ltr'], modes: ['ionic-md'] }).forEach(({ config, screenshot, title }) => {
+  test.describe(title('accordion-group: shape'), () => {
+    ['round', 'soft', 'rectangular'].forEach((shape) => {
+      test(`${shape} - should not have visual regressions`, async ({ page }) => {
+        await page.setContent(
+          `
+          <style>
+            /* Background styles to show the border radius */
+            :root {
+              background: #222;
+            }
+          </style>
+
+          <ion-accordion-group value="first" expand="inset" shape="${shape}">
+            <ion-accordion value="first">
+              <ion-item slot="header">
+                <ion-label>Accordion title</ion-label>
+              </ion-item>
+              <div slot="content">This is the body of the accordion.</div>
+            </ion-accordion>
+            <ion-accordion value="second">
+              <ion-item slot="header">
+                <ion-label>Accordion title</ion-label>
+              </ion-item>
+              <div slot="content">This is the body of the accordion.</div>
+            </ion-accordion>
+            <ion-accordion value="third">
+              <ion-item slot="header">
+                <ion-label>Accordion title</ion-label>
+              </ion-item>
+              <div slot="content">This is the body of the accordion.</div>
+            </ion-accordion>
+          </ion-accordion-group>
+      `,
+          config
+        );
+
+        const accordionGroup = page.locator('ion-accordion-group');
+
+        await expect(accordionGroup).toHaveScreenshot(screenshot(`accordion-group-shape-${shape}`));
+      });
+    });
+  });
+});
diff --git a/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts-snapshots/accordion-group-shape-rectangular-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts-snapshots/accordion-group-shape-rectangular-ionic-md-ltr-light-Mobile-Chrome-linux.png
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diff --git a/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts-snapshots/accordion-group-shape-soft-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/shape/accordion-group.e2e.ts-snapshots/accordion-group-shape-soft-ionic-md-ltr-light-Mobile-Safari-linux.png
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diff --git a/core/src/components/accordion-group/test/shape/index.html b/core/src/components/accordion-group/test/shape/index.html
new file mode 100644
index 0000000000..278cacaf70
--- /dev/null
+++ b/core/src/components/accordion-group/test/shape/index.html
@@ -0,0 +1,135 @@
+<!DOCTYPE html>
+<html lang="en" dir="ltr">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Accordion Group - Shape</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0" />
+    <link href="../../../../../css/ionic.bundle.css" rel="stylesheet" />
+    <link href="../../../../../scripts/testing/styles.css" rel="stylesheet" />
+    <script src="../../../../../scripts/testing/scripts.js"></script>
+    <script type="module" src="../../../../../dist/ionic/ionic.esm.js"></script>
+    <style>
+      .grid {
+        display: grid;
+        grid-template-columns: repeat(4, 1fr);
+        grid-row-gap: 20px;
+        grid-column-gap: 20px;
+      }
+      h2 {
+        font-size: 12px;
+        font-weight: normal;
+
+        color: #6f7378;
+
+        margin-top: 10px;
+        margin-left: 5px;
+      }
+    </style>
+  </head>
+
+  <body>
+    <ion-app>
+      <ion-header translucent="true">
+        <ion-toolbar>
+          <ion-title>Accordion Group - Shape</ion-title>
+        </ion-toolbar>
+      </ion-header>
+      <ion-content fullscreen="true" color="light">
+        <div class="grid ion-padding">
+          <div class="grid-item">
+            <h2>Default</h2>
+            <ion-accordion-group expand="inset" value="first">
+              <ion-accordion value="first">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="second">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="third">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+            </ion-accordion-group>
+          </div>
+          <div class="grid-item">
+            <h2>Round</h2>
+            <ion-accordion-group expand="inset" value="first" shape="round">
+              <ion-accordion value="first">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="second">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="third">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+            </ion-accordion-group>
+          </div>
+          <div class="grid-item">
+            <h2>Soft</h2>
+            <ion-accordion-group expand="inset" value="first" shape="soft">
+              <ion-accordion value="first">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="second">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="third">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+            </ion-accordion-group>
+          </div>
+          <div class="grid-item">
+            <h2>Rectangular</h2>
+            <ion-accordion-group expand="inset" value="first" shape="rectangular">
+              <ion-accordion value="first">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="second">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+              <ion-accordion value="third">
+                <ion-item slot="header">
+                  <ion-label>Accordion title</ion-label>
+                </ion-item>
+                <div slot="content">This is the body of the accordion.</div>
+              </ion-accordion>
+            </ion-accordion-group>
+          </div>
+        </div>
+      </ion-content>
+    </ion-app>
+  </body>
+</html>
diff --git a/core/src/components/accordion-group/test/states/accordion.e2e.ts b/core/src/components/accordion-group/test/states/accordion-group.e2e.ts
similarity index 100%
rename from core/src/components/accordion-group/test/states/accordion.e2e.ts
rename to core/src/components/accordion-group/test/states/accordion-group.e2e.ts
diff --git a/core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Chrome-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Chrome-linux.png
rename to core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Chrome-linux.png
diff --git a/core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Firefox-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Firefox-linux.png
rename to core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Firefox-linux.png
diff --git a/core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Safari-linux.png
similarity index 100%
rename from core/src/components/accordion-group/test/states/accordion.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Safari-linux.png
rename to core/src/components/accordion-group/test/states/accordion-group.e2e.ts-snapshots/accordion-group-disabled-ionic-md-ltr-light-Mobile-Safari-linux.png
diff --git a/packages/angular/src/directives/proxies.ts b/packages/angular/src/directives/proxies.ts
index 42d1cdd624..45463539ff 100644
--- a/packages/angular/src/directives/proxies.ts
+++ b/packages/angular/src/directives/proxies.ts
@@ -30,14 +30,14 @@ export declare interface IonAccordion extends Components.IonAccordion {}
 
 
 @ProxyCmp({
-  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'theme', 'value']
+  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'shape', 'theme', 'value']
 })
 @Component({
   selector: 'ion-accordion-group',
   changeDetection: ChangeDetectionStrategy.OnPush,
   template: '<ng-content></ng-content>',
   // eslint-disable-next-line @angular-eslint/no-inputs-metadata-property
-  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'theme', 'value'],
+  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'shape', 'theme', 'value'],
 })
 export class IonAccordionGroup {
   protected el: HTMLElement;
diff --git a/packages/angular/standalone/src/directives/proxies.ts b/packages/angular/standalone/src/directives/proxies.ts
index 842f7879f7..d171b2c0ff 100644
--- a/packages/angular/standalone/src/directives/proxies.ts
+++ b/packages/angular/standalone/src/directives/proxies.ts
@@ -103,14 +103,14 @@ export declare interface IonAccordion extends Components.IonAccordion {}
 
 @ProxyCmp({
   defineCustomElementFn: defineIonAccordionGroup,
-  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'theme', 'value']
+  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'shape', 'theme', 'value']
 })
 @Component({
   selector: 'ion-accordion-group',
   changeDetection: ChangeDetectionStrategy.OnPush,
   template: '<ng-content></ng-content>',
   // eslint-disable-next-line @angular-eslint/no-inputs-metadata-property
-  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'theme', 'value'],
+  inputs: ['animated', 'disabled', 'expand', 'mode', 'multiple', 'readonly', 'shape', 'theme', 'value'],
   standalone: true
 })
 export class IonAccordionGroup {
diff --git a/packages/vue/src/proxies.ts b/packages/vue/src/proxies.ts
index b24ee1c91c..72fac0c958 100644
--- a/packages/vue/src/proxies.ts
+++ b/packages/vue/src/proxies.ts
@@ -97,6 +97,7 @@ export const IonAccordionGroup = /*@__PURE__*/ defineContainer<JSX.IonAccordionG
   'disabled',
   'readonly',
   'expand',
+  'shape',
   'ionChange',
   'ionValueChange'
 ],