diff --git a/samples/gemini-chatbot/README.md b/samples/gemini-chatbot/README.md
index caf00047..0e04655a 100644
--- a/samples/gemini-chatbot/README.md
+++ b/samples/gemini-chatbot/README.md
@@ -18,7 +18,7 @@ Here is the key snippet of code that calls the generative model:
 
 ```kotlin
 private val generativeModel by lazy {
-    Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel("gemini-2.5-flash")
+    Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel("gemini-3-pro-image-preview")
 }
 private val chat = generativeModel.startChat()
 
diff --git a/samples/gemini-image-chat/android_nano_banana.png b/samples/gemini-image-chat/android_nano_banana.png
index 644cdd31..f100edd2 100644
Binary files a/samples/gemini-image-chat/android_nano_banana.png and b/samples/gemini-image-chat/android_nano_banana.png differ
diff --git a/samples/gemini-image-chat/src/main/java/com/android/ai/samples/geminiimagechat/GeminiImageChatViewModel.kt b/samples/gemini-image-chat/src/main/java/com/android/ai/samples/geminiimagechat/GeminiImageChatViewModel.kt
index 84b81dce..3afec297 100644
--- a/samples/gemini-image-chat/src/main/java/com/android/ai/samples/geminiimagechat/GeminiImageChatViewModel.kt
+++ b/samples/gemini-image-chat/src/main/java/com/android/ai/samples/geminiimagechat/GeminiImageChatViewModel.kt
@@ -53,7 +53,7 @@ class GeminiImageChatViewModel @Inject constructor() : ViewModel() {
 
     private val generativeModel by lazy {
         Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel(
-            "gemini-2.5-flash-image-preview",
+            "gemini-3-pro-image-preview",
             generationConfig = generationConfig {
                 temperature = 0.9f
                 topK = 32