refactor(ai): use gemini-3.1-flash-lite GA

thatfiredev · thatfiredev · commit d66c999975b6 · 2026-05-08T15:04:18.000+01:00
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/hybrid/HybridInferenceViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/hybrid/HybridInferenceViewModel.kt
@@ -41,7 +41,7 @@ class HybridInferenceViewModel : ViewModel() {
     val uiState: StateFlow<HybridInferenceUiState> = _uiState.asStateFlow()
 
     private val model = Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel(
-        modelName = "gemini-3.1-flash-lite-preview",
+        modelName = "gemini-3.1-flash-lite",
         onDeviceConfig = OnDeviceConfig(mode = InferenceMode.PREFER_ON_DEVICE)
     )
 
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/AudioSummarizationViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/AudioSummarizationViewModel.kt
@@ -28,7 +28,7 @@ class AudioSummarizationViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-3.1-flash-lite-preview"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat(
             listOf(
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/AudioTranslationViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/AudioTranslationViewModel.kt
@@ -20,7 +20,7 @@ class AudioTranslationViewModel : ChatViewModel() {
 
     init {
         val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(
-            modelName = "gemini-2.5-flash"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat()
         
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/CourseRecommendationsViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/CourseRecommendationsViewModel.kt
@@ -23,7 +23,7 @@ class CourseRecommendationsViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-2.5-flash",
+            modelName = "gemini-3.1-flash-lite",
             systemInstruction = content {
                 text(
                     "You are a chatbot for the county's performing and fine arts" +
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/DocumentComparisonViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/DocumentComparisonViewModel.kt
@@ -21,7 +21,7 @@ class DocumentComparisonViewModel : ChatViewModel() {
 
     init {
         val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(
-            modelName = "gemini-2.5-flash"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat()
 
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/GoogleSearchGroundingViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/GoogleSearchGroundingViewModel.kt
@@ -23,7 +23,7 @@ class GoogleSearchGroundingViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-2.5-flash",
+            modelName = "gemini-3.1-flash-lite",
             tools = listOf(Tool.googleSearch())
         )
         chat = generativeModel.startChat()
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/ImageBlogCreatorViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/ImageBlogCreatorViewModel.kt
@@ -22,7 +22,7 @@ class ImageBlogCreatorViewModel : ChatViewModel() {
 
     init {
         val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(
-            modelName = "gemini-2.5-flash"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat()
 
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/TranslationViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/TranslationViewModel.kt
@@ -25,7 +25,7 @@ class TranslationViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-3.1-flash-lite-preview",
+            modelName = "gemini-3.1-flash-lite",
             systemInstruction = content {
                 text("Only output the translated text")
             }
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/TravelTipsViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/TravelTipsViewModel.kt
@@ -24,7 +24,7 @@ class TravelTipsViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-2.5-flash",
+            modelName = "gemini-3.1-flash-lite",
             systemInstruction = content {
                 text(
                     "You are a Travel assistant. You will answer" +
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/VideoHashtagGeneratorViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/VideoHashtagGeneratorViewModel.kt
@@ -23,7 +23,7 @@ class VideoHashtagGeneratorViewModel : ChatViewModel() {
 
     init {
         val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(
-            modelName = "gemini-2.5-flash"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat()
 
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/VideoSummarizationViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/VideoSummarizationViewModel.kt
@@ -39,7 +39,7 @@ class VideoSummarizationViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-2.5-flash"
+            modelName = "gemini-3.1-flash-lite"
         )
         chat = generativeModel.startChat(chatHistory)
     }
diff --git a/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/WeatherChatViewModel.kt b/firebase-ai/app/src/main/java/com/google/firebase/quickstart/ai/feature/text/WeatherChatViewModel.kt
@@ -33,7 +33,7 @@ class WeatherChatViewModel : ChatViewModel() {
         val generativeModel = Firebase.ai(
             backend = GenerativeBackend.googleAI()
         ).generativeModel(
-            modelName = "gemini-2.5-flash",
+            modelName = "gemini-3.1-flash-lite",
             tools = listOf(
                 Tool.functionDeclarations(
                     listOf(

Original file line number	Diff line number	Diff line change
`@@ -41,7 +41,7 @@ class HybridInferenceViewModel : ViewModel() {`
`41`	`41`	`val uiState: StateFlow<HybridInferenceUiState> = _uiState.asStateFlow()`
`42`	`42`
`43`	`43`	`private val model = Firebase.ai(backend = GenerativeBackend.googleAI()).generativeModel(`
`44`		`- modelName = "gemini-3.1-flash-lite-preview",`
	`44`	`+ modelName = "gemini-3.1-flash-lite",`
`45`	`45`	`onDeviceConfig = OnDeviceConfig(mode = InferenceMode.PREFER_ON_DEVICE)`
`46`	`46`	`)`
`47`	`47`
Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,7 @@ class AudioSummarizationViewModel : ChatViewModel() {`
`28`	`28`	`val generativeModel = Firebase.ai(`
`29`	`29`	`backend = GenerativeBackend.googleAI()`
`30`	`30`	`).generativeModel(`
`31`		`- modelName = "gemini-3.1-flash-lite-preview"`
	`31`	`+ modelName = "gemini-3.1-flash-lite"`
`32`	`32`	`)`
`33`	`33`	`chat = generativeModel.startChat(`
`34`	`34`	`listOf(`
Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ class AudioTranslationViewModel : ChatViewModel() {`
`20`	`20`
`21`	`21`	`init {`
`22`	`22`	`val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(`
`23`		`- modelName = "gemini-2.5-flash"`
	`23`	`+ modelName = "gemini-3.1-flash-lite"`
`24`	`24`	`)`
`25`	`25`	`chat = generativeModel.startChat()`
`26`	`26`
Original file line number	Diff line number	Diff line change
`@@ -21,7 +21,7 @@ class DocumentComparisonViewModel : ChatViewModel() {`
`21`	`21`
`22`	`22`	`init {`
`23`	`23`	`val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(`
`24`		`- modelName = "gemini-2.5-flash"`
	`24`	`+ modelName = "gemini-3.1-flash-lite"`
`25`	`25`	`)`
`26`	`26`	`chat = generativeModel.startChat()`
`27`	`27`
Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ class GoogleSearchGroundingViewModel : ChatViewModel() {`
`23`	`23`	`val generativeModel = Firebase.ai(`
`24`	`24`	`backend = GenerativeBackend.googleAI()`
`25`	`25`	`).generativeModel(`
`26`		`- modelName = "gemini-2.5-flash",`
	`26`	`+ modelName = "gemini-3.1-flash-lite",`
`27`	`27`	`tools = listOf(Tool.googleSearch())`
`28`	`28`	`)`
`29`	`29`	`chat = generativeModel.startChat()`
Original file line number	Diff line number	Diff line change
`@@ -22,7 +22,7 @@ class ImageBlogCreatorViewModel : ChatViewModel() {`
`22`	`22`
`23`	`23`	`init {`
`24`	`24`	`val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(`
`25`		`- modelName = "gemini-2.5-flash"`
	`25`	`+ modelName = "gemini-3.1-flash-lite"`
`26`	`26`	`)`
`27`	`27`	`chat = generativeModel.startChat()`
`28`	`28`
Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ class TranslationViewModel : ChatViewModel() {`
`25`	`25`	`val generativeModel = Firebase.ai(`
`26`	`26`	`backend = GenerativeBackend.googleAI()`
`27`	`27`	`).generativeModel(`
`28`		`- modelName = "gemini-3.1-flash-lite-preview",`
	`28`	`+ modelName = "gemini-3.1-flash-lite",`
`29`	`29`	`systemInstruction = content {`
`30`	`30`	`text("Only output the translated text")`
`31`	`31`	`}`
Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ class VideoHashtagGeneratorViewModel : ChatViewModel() {`
`23`	`23`
`24`	`24`	`init {`
`25`	`25`	`val generativeModel = Firebase.ai(backend = GenerativeBackend.vertexAI()).generativeModel(`
`26`		`- modelName = "gemini-2.5-flash"`
	`26`	`+ modelName = "gemini-3.1-flash-lite"`
`27`	`27`	`)`
`28`	`28`	`chat = generativeModel.startChat()`
`29`	`29`