Galaxy One UI Now Supports Gemini as the Default AI Assistant: App Teardown

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📝 Key Points of This Article

• Gemini may soon be configurable as the default AI assistant for One UI on Galaxy devices.
• Analysis of the in-app files from the Android “Google” app v17.20.25 update reveals new resource code for a “Gateway” implementation, designed to replace the Bixby invocation action on Galaxy devices with Gemini.
• This suggests the possibility of a deeper, system-level integration of Gemini within the One UI ecosystem.

The “One UI” custom interface for Samsung’s Galaxy Android device series comes equipped with its own proprietary AI assistant, “Bixby.”

As many of you know, the standard AI assistant for current Android devices, including Galaxy, is Google’s “Gemini” (or Google Assistant). On Galaxy devices, Bixby—which specializes in device settings and app operations—and Gemini—which specializes in generative AI functions—have historically coexisted with distinct roles. However, it may soon be possible to set Gemini as the default AI assistant within One UI on Galaxy devices.

This possibility has been uncovered through our site’s original “App Analysis” content.

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An analysis of the in-app files from the Android “Google” app v17.20.25 update, released on Monday, May 4, 2026, confirms the addition of resource code regarding a “Gateway” implementation, which allows the Bixby invocation action on Galaxy devices to be replaced by Gemini.

<activity-alias
    android:label="@string/assistant_product_name_bard"
    android:icon="@mipmap/assistant_robin_ic_activity"
    android:name="com.google.android.apps.search.assistant.surfaces.voice.deeplinks.handlers.gateway.impl.GeminiGatewayActivity"
    android:exported="true"
    android:targetActivity="com.google.apps.tiktok.nav.gateway.GatewayActivity">
    <intent-filter>
        <action android:name="com.samsung.android.intent.action.AI_ASSIST"/>
        <category android:name="android.intent.category.DEFAULT"/>
    </intent-filter>
</activity-alias>

While it is already possible to configure Galaxy devices to call Gemini instead of Bixby via long-press side button settings or third-party customization apps, the newly discovered resource code shows that Gemini is being updated to support Galaxy’s proprietary AI assistant invocation specifications. This suggests more than just a simple setting override; it hints at the potential for a deeper, system-level integration of Gemini into One UI.

Specifically, the “Google (Gemini)” app now includes a “GeminiGatewayActivity” that can directly receive “com.samsung.android.intent.action.AI_ASSIST,” the proprietary internal action used to trigger Bixby on Galaxy devices. This is expected to allow for a much smoother invocation of Gemini as the default AI assistant through native gestures, such as long-pressing the side button or swiping from the edge of the screen.

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