feat: add gemini-3.5-flash model support across backend and frontend

backend/internal/pkg/gemini/models.go

@@ -22,6 +22,7 @@ func DefaultModels() []Model {
 		{Name: "models/gemini-2.5-flash", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-2.5-flash-image", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-2.5-pro", SupportedGenerationMethods: methods},
+		{Name: "models/gemini-3.5-flash", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-3-flash-preview", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-3-pro-preview", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-3.1-pro-preview", SupportedGenerationMethods: methods},

backend/internal/pkg/geminicli/models.go

@@ -15,6 +15,7 @@ var DefaultModels = []Model{
 	{ID: "gemini-2.5-flash", Type: "model", DisplayName: "Gemini 2.5 Flash", CreatedAt: ""},
 	{ID: "gemini-2.5-flash-image", Type: "model", DisplayName: "Gemini 2.5 Flash Image", CreatedAt: ""},
 	{ID: "gemini-2.5-pro", Type: "model", DisplayName: "Gemini 2.5 Pro", CreatedAt: ""},
+	{ID: "gemini-3.5-flash", Type: "model", DisplayName: "Gemini 3.5 Flash", CreatedAt: ""},
 	{ID: "gemini-3-flash-preview", Type: "model", DisplayName: "Gemini 3 Flash Preview", CreatedAt: ""},
 	{ID: "gemini-3-pro-preview", Type: "model", DisplayName: "Gemini 3 Pro Preview", CreatedAt: ""},
 	{ID: "gemini-3.1-pro-preview", Type: "model", DisplayName: "Gemini 3.1 Pro Preview", CreatedAt: ""},

frontend/src/components/account/AccountStatusIndicator.vue

@@ -231,6 +231,8 @@ const formatScopeName = (scope: string): string => {
     'gemini-2.5-flash-thinking': 'G25FT',
     'gemini-2.5-pro': 'G25P',
     'gemini-2.5-flash-image': 'G25I',
+    // Gemini 3.5 系列
+    'gemini-3.5-flash': 'G35F',
     // Gemini 3 系列
     'gemini-3-flash': 'G3F',
     'gemini-3.1-pro-high': 'G3PH',

frontend/src/components/account/AccountTestModal.vue

@@ -292,7 +292,7 @@ const openAITestModeOptions = computed(() => [
   { value: 'compact', label: t('admin.accounts.openai.testModeCompact') }
 ])
 const previewImageUrl = ref('')
-const prioritizedGeminiModels = ['gemini-3.1-flash-image', 'gemini-2.5-flash-image', 'gemini-2.5-flash', 'gemini-2.5-pro', 'gemini-3-flash-preview', 'gemini-3-pro-preview', 'gemini-2.0-flash']
+const prioritizedGeminiModels = ['gemini-3.1-flash-image', 'gemini-2.5-flash-image', 'gemini-3.5-flash', 'gemini-2.5-flash', 'gemini-2.5-pro', 'gemini-3-flash-preview', 'gemini-3-pro-preview', 'gemini-2.0-flash']
 const supportsGeminiImageTest = computed(() => {
   const modelID = selectedModelId.value.toLowerCase()
   if (!modelID.startsWith('gemini-') || !modelID.includes('-image')) return false

frontend/src/components/admin/account/AccountTestModal.vue

@@ -275,7 +275,7 @@ const loadingModels = ref(false)
 let abortController: AbortController | null = null
 const generatedImages = ref<PreviewImage[]>([])
 const previewImageUrl = ref('')
-const prioritizedGeminiModels = ['gemini-3.1-flash-image', 'gemini-2.5-flash-image', 'gemini-2.5-flash', 'gemini-2.5-pro', 'gemini-3-flash-preview', 'gemini-3-pro-preview', 'gemini-2.0-flash']
+const prioritizedGeminiModels = ['gemini-3.1-flash-image', 'gemini-2.5-flash-image', 'gemini-3.5-flash', 'gemini-2.5-flash', 'gemini-2.5-pro', 'gemini-3-flash-preview', 'gemini-3-pro-preview', 'gemini-2.0-flash']
 const supportsGeminiImageTest = computed(() => {
   const modelID = selectedModelId.value.toLowerCase()
   if (!modelID.startsWith('gemini-') || !modelID.includes('-image')) return false

frontend/src/components/keys/UseKeyModal.vue

@@ -769,6 +769,17 @@ function generateOpenCodeConfig(platform: string, baseUrl: string, apiKey: strin
         }
       }
     },
+    'gemini-3.5-flash': {
+      name: 'Gemini 3.5 Flash',
+      limit: {
+        context: 1048576,
+        output: 65536
+      },
+      modalities: {
+        input: ['text', 'image', 'pdf'],
+        output: ['text']
+      }
+    },
     'gemini-3-flash-preview': {
       name: 'Gemini 3 Flash Preview',
       limit: {

frontend/src/composables/useModelWhitelist.ts

@@ -41,6 +41,7 @@ const geminiModels = [
   'gemini-2.0-flash',
   'gemini-2.5-flash',
   'gemini-2.5-pro',
+  'gemini-3.5-flash',
   'gemini-3-flash-preview',
   'gemini-3-pro-preview'
 ]
@@ -262,6 +263,7 @@ const geminiPresetMappings = [
   { label: '2.5 Flash', from: 'gemini-2.5-flash', to: 'gemini-2.5-flash', color: 'bg-indigo-100 text-indigo-700 hover:bg-indigo-200 dark:bg-indigo-900/30 dark:text-indigo-400' },
   { label: '2.5 Image', from: 'gemini-2.5-flash-image', to: 'gemini-2.5-flash-image', color: 'bg-sky-100 text-sky-700 hover:bg-sky-200 dark:bg-sky-900/30 dark:text-sky-400' },
   { label: '2.5 Pro', from: 'gemini-2.5-pro', to: 'gemini-2.5-pro', color: 'bg-purple-100 text-purple-700 hover:bg-purple-200 dark:bg-purple-900/30 dark:text-purple-400' },
+  { label: '3.5 Flash', from: 'gemini-3.5-flash', to: 'gemini-3.5-flash', color: 'bg-violet-100 text-violet-700 hover:bg-violet-200 dark:bg-violet-900/30 dark:text-violet-400' },
   { label: '3.1 Image', from: 'gemini-3.1-flash-image', to: 'gemini-3.1-flash-image', color: 'bg-sky-100 text-sky-700 hover:bg-sky-200 dark:bg-sky-900/30 dark:text-sky-400' }
 ]