feat: add gemini 2.5 flash image support

backend/internal/domain/constants.go

@@ -84,10 +84,12 @@ var DefaultAntigravityModelMapping = map[string]string{
 	"claude-haiku-4-5":          "claude-sonnet-4-5",
 	"claude-haiku-4-5-20251001": "claude-sonnet-4-5",
 	// Gemini 2.5 白名单
-	"gemini-2.5-flash":          "gemini-2.5-flash",
-	"gemini-2.5-flash-lite":     "gemini-2.5-flash-lite",
-	"gemini-2.5-flash-thinking": "gemini-2.5-flash-thinking",
-	"gemini-2.5-pro":            "gemini-2.5-pro",
+	"gemini-2.5-flash":               "gemini-2.5-flash",
+	"gemini-2.5-flash-image":         "gemini-2.5-flash-image",
+	"gemini-2.5-flash-image-preview": "gemini-2.5-flash-image",
+	"gemini-2.5-flash-lite":          "gemini-2.5-flash-lite",
+	"gemini-2.5-flash-thinking":      "gemini-2.5-flash-thinking",
+	"gemini-2.5-pro":                 "gemini-2.5-pro",
 	// Gemini 3 白名单
 	"gemini-3-flash":    "gemini-3-flash",
 	"gemini-3-pro-high": "gemini-3-pro-high",

backend/internal/domain/constants_test.go

@@ -6,6 +6,8 @@ func TestDefaultAntigravityModelMapping_ImageCompatibilityAliases(t *testing.T)
 	t.Parallel()
 
 	cases := map[string]string{
+		"gemini-2.5-flash-image":         "gemini-2.5-flash-image",
+		"gemini-2.5-flash-image-preview": "gemini-2.5-flash-image",
 		"gemini-3.1-flash-image":         "gemini-3.1-flash-image",
 		"gemini-3.1-flash-image-preview": "gemini-3.1-flash-image",
 		"gemini-3-pro-image":             "gemini-3.1-flash-image",

backend/internal/pkg/antigravity/claude_types.go

@@ -159,6 +159,8 @@ var claudeModels = []modelDef{
 // Antigravity 支持的 Gemini 模型
 var geminiModels = []modelDef{
 	{ID: "gemini-2.5-flash", DisplayName: "Gemini 2.5 Flash", CreatedAt: "2025-01-01T00:00:00Z"},
+	{ID: "gemini-2.5-flash-image", DisplayName: "Gemini 2.5 Flash Image", CreatedAt: "2025-01-01T00:00:00Z"},
+	{ID: "gemini-2.5-flash-image-preview", DisplayName: "Gemini 2.5 Flash Image Preview", CreatedAt: "2025-01-01T00:00:00Z"},
 	{ID: "gemini-2.5-flash-lite", DisplayName: "Gemini 2.5 Flash Lite", CreatedAt: "2025-01-01T00:00:00Z"},
 	{ID: "gemini-2.5-flash-thinking", DisplayName: "Gemini 2.5 Flash Thinking", CreatedAt: "2025-01-01T00:00:00Z"},
 	{ID: "gemini-3-flash", DisplayName: "Gemini 3 Flash", CreatedAt: "2025-06-01T00:00:00Z"},

backend/internal/pkg/antigravity/claude_types_test.go

@@ -13,6 +13,8 @@ func TestDefaultModels_ContainsNewAndLegacyImageModels(t *testing.T) {
 
 	requiredIDs := []string{
 		"claude-opus-4-6-thinking",
+		"gemini-2.5-flash-image",
+		"gemini-2.5-flash-image-preview",
 		"gemini-3.1-flash-image",
 		"gemini-3.1-flash-image-preview",
 		"gemini-3-pro-image", // legacy compatibility

backend/internal/pkg/gemini/models.go

@@ -18,10 +18,12 @@ func DefaultModels() []Model {
 	return []Model{
 		{Name: "models/gemini-2.0-flash", SupportedGenerationMethods: methods},
 		{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-flash-preview", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-3-pro-preview", SupportedGenerationMethods: methods},
 		{Name: "models/gemini-3.1-pro-preview", SupportedGenerationMethods: methods},
+		{Name: "models/gemini-3.1-flash-image", SupportedGenerationMethods: methods},
 	}
 }
 

backend/internal/pkg/gemini/models_test.go

+package gemini
+
+import "testing"
+
+func TestDefaultModels_ContainsImageModels(t *testing.T) {
+	t.Parallel()
+
+	models := DefaultModels()
+	byName := make(map[string]Model, len(models))
+	for _, model := range models {
+		byName[model.Name] = model
+	}
+
+	required := []string{
+		"models/gemini-2.5-flash-image",
+		"models/gemini-3.1-flash-image",
+	}
+
+	for _, name := range required {
+		model, ok := byName[name]
+		if !ok {
+			t.Fatalf("expected fallback model %q to exist", name)
+		}
+		if len(model.SupportedGenerationMethods) == 0 {
+			t.Fatalf("expected fallback model %q to advertise generation methods", name)
+		}
+	}
+}

backend/internal/pkg/geminicli/models.go

@@ -13,10 +13,12 @@ type Model struct {
 var DefaultModels = []Model{
 	{ID: "gemini-2.0-flash", Type: "model", DisplayName: "Gemini 2.0 Flash", CreatedAt: ""},
 	{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-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: ""},
+	{ID: "gemini-3.1-flash-image", Type: "model", DisplayName: "Gemini 3.1 Flash Image", CreatedAt: ""},
 }
 
 // DefaultTestModel is the default model to preselect in test flows.

backend/internal/pkg/geminicli/models_test.go

+package geminicli
+
+import "testing"
+
+func TestDefaultModels_ContainsImageModels(t *testing.T) {
+	t.Parallel()
+
+	byID := make(map[string]Model, len(DefaultModels))
+	for _, model := range DefaultModels {
+		byID[model.ID] = model
+	}
+
+	required := []string{
+		"gemini-2.5-flash-image",
+		"gemini-3.1-flash-image",
+	}
+
+	for _, id := range required {
+		if _, ok := byID[id]; !ok {
+			t.Fatalf("expected curated Gemini model %q to exist", id)
+		}
+	}
+}

backend/migrations/071_add_gemini25_flash_image_to_model_mapping.sql

+-- Add gemini-2.5-flash-image aliases to Antigravity model_mapping
+--
+-- Background:
+-- Gemini native image generation now relies on gemini-2.5-flash-image, and
+-- existing Antigravity accounts with persisted model_mapping need this alias in
+-- order to participate in mixed scheduling from gemini groups.
+--
+-- Strategy:
+-- Overwrite the stored model_mapping so it matches DefaultAntigravityModelMapping
+-- in constants.go, including legacy gemini-3-pro-image aliases.
+
+UPDATE accounts
+SET credentials = jsonb_set(
+    credentials,
+    '{model_mapping}',
+    '{
+        "claude-opus-4-6-thinking": "claude-opus-4-6-thinking",
+        "claude-opus-4-6": "claude-opus-4-6-thinking",
+        "claude-opus-4-5-thinking": "claude-opus-4-6-thinking",
+        "claude-opus-4-5-20251101": "claude-opus-4-6-thinking",
+        "claude-sonnet-4-6": "claude-sonnet-4-6",
+        "claude-sonnet-4-5": "claude-sonnet-4-5",
+        "claude-sonnet-4-5-thinking": "claude-sonnet-4-5-thinking",
+        "claude-sonnet-4-5-20250929": "claude-sonnet-4-5",
+        "claude-haiku-4-5": "claude-sonnet-4-5",
+        "claude-haiku-4-5-20251001": "claude-sonnet-4-5",
+        "gemini-2.5-flash": "gemini-2.5-flash",
+        "gemini-2.5-flash-image": "gemini-2.5-flash-image",
+        "gemini-2.5-flash-image-preview": "gemini-2.5-flash-image",
+        "gemini-2.5-flash-lite": "gemini-2.5-flash-lite",
+        "gemini-2.5-flash-thinking": "gemini-2.5-flash-thinking",
+        "gemini-2.5-pro": "gemini-2.5-pro",
+        "gemini-3-flash": "gemini-3-flash",
+        "gemini-3-pro-high": "gemini-3-pro-high",
+        "gemini-3-pro-low": "gemini-3-pro-low",
+        "gemini-3-flash-preview": "gemini-3-flash",
+        "gemini-3-pro-preview": "gemini-3-pro-high",
+        "gemini-3.1-pro-high": "gemini-3.1-pro-high",
+        "gemini-3.1-pro-low": "gemini-3.1-pro-low",
+        "gemini-3.1-pro-preview": "gemini-3.1-pro-high",
+        "gemini-3.1-flash-image": "gemini-3.1-flash-image",
+        "gemini-3.1-flash-image-preview": "gemini-3.1-flash-image",
+        "gemini-3-pro-image": "gemini-3.1-flash-image",
+        "gemini-3-pro-image-preview": "gemini-3.1-flash-image",
+        "gpt-oss-120b-medium": "gpt-oss-120b-medium",
+        "tab_flash_lite_preview": "tab_flash_lite_preview"
+    }'::jsonb
+)
+WHERE platform = 'antigravity'
+  AND deleted_at IS NULL
+  AND credentials->'model_mapping' IS NOT NULL;

frontend/src/components/account/AccountStatusIndicator.vue

@@ -176,6 +176,7 @@ const formatScopeName = (scope: string): string => {
     'gemini-2.5-flash-lite': 'G25FL',
     'gemini-2.5-flash-thinking': 'G25FT',
     'gemini-2.5-pro': 'G25P',
+    'gemini-2.5-flash-image': 'G25I',
     // Gemini 3 系列
     'gemini-3-flash': 'G3F',
     'gemini-3.1-pro-high': 'G3PH',

frontend/src/components/account/AccountUsageCell.vue

@@ -521,7 +521,7 @@ const antigravity3FlashUsageFromAPI = computed(() => getAntigravityUsageFromAPI(
 
 // Gemini Image from API
 const antigravity3ImageUsageFromAPI = computed(() =>
-  getAntigravityUsageFromAPI(['gemini-3.1-flash-image', 'gemini-3-pro-image'])
+  getAntigravityUsageFromAPI(['gemini-2.5-flash-image', 'gemini-3.1-flash-image', 'gemini-3-pro-image'])
 )
 
 // Claude from API (all Claude model variants)

frontend/src/components/account/BulkEditAccountModal.vue

@@ -961,6 +961,7 @@ const allModels = [
   { value: 'gpt-5-2025-08-07', label: 'GPT-5' },
   { value: 'gemini-2.0-flash', label: 'Gemini 2.0 Flash' },
   { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
+  { value: 'gemini-2.5-flash-image', label: 'Gemini 2.5 Flash Image' },
   { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
   { value: 'gemini-3.1-flash-image', label: 'Gemini 3.1 Flash Image' },
   { value: 'gemini-3-pro-image', label: 'Gemini 3 Pro Image (Legacy)' },
@@ -1042,6 +1043,12 @@ const presetMappings = [
     to: 'claude-sonnet-4-5-20250929',
     color: 'bg-amber-100 text-amber-700 hover:bg-amber-200 dark:bg-amber-900/30 dark:text-amber-400'
   },
+  {
+    label: 'Gemini 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: 'Gemini 3.1 Image',
     from: 'gemini-3.1-flash-image',

frontend/src/components/account/__tests__/AccountUsageCell.spec.ts

@@ -32,6 +32,10 @@ describe('AccountUsageCell', () => {
   it('Antigravity 图片用量会聚合新旧 image 模型', async () => {
     getUsage.mockResolvedValue({
       antigravity_quota: {
+        'gemini-2.5-flash-image': {
+          utilization: 45,
+          reset_time: '2026-03-01T11:00:00Z'
+        },
         'gemini-3.1-flash-image': {
           utilization: 20,
           reset_time: '2026-03-01T10:00:00Z'

frontend/src/components/keys/UseKeyModal.vue

@@ -959,6 +959,23 @@ function generateOpenCodeConfig(platform: string, baseUrl: string, apiKey: strin
         }
       }
     },
+    'gemini-2.5-flash-image': {
+      name: 'Gemini 2.5 Flash Image',
+      limit: {
+        context: 1048576,
+        output: 65536
+      },
+      modalities: {
+        input: ['text', 'image'],
+        output: ['image']
+      },
+      options: {
+        thinking: {
+          budgetTokens: 24576,
+          type: 'enabled'
+        }
+      }
+    },
     'gemini-3.1-flash-image': {
       name: 'Gemini 3.1 Flash Image',
       limit: {

frontend/src/composables/__tests__/useModelWhitelist.spec.ts

-import { describe, expect, it } from 'vitest'
+import { describe, expect, it, vi } from 'vitest'
+
+vi.mock('@/api/admin/accounts', () => ({
+  getAntigravityDefaultModelMapping: vi.fn()
+}))
+
 import { buildModelMappingObject, getModelsByPlatform } from '../useModelWhitelist'
 
 describe('useModelWhitelist', () => {
@@ -12,10 +17,18 @@ describe('useModelWhitelist', () => {
   it('antigravity 模型列表包含图片模型兼容项', () => {
     const models = getModelsByPlatform('antigravity')
 
+    expect(models).toContain('gemini-2.5-flash-image')
     expect(models).toContain('gemini-3.1-flash-image')
     expect(models).toContain('gemini-3-pro-image')
   })
 
+  it('gemini 模型列表包含原生生图模型', () => {
+    const models = getModelsByPlatform('gemini')
+
+    expect(models).toContain('gemini-2.5-flash-image')
+    expect(models).toContain('gemini-3.1-flash-image')
+  })
+
   it('whitelist 模式会忽略通配符条目', () => {
     const mapping = buildModelMappingObject('whitelist', ['claude-*', 'gemini-3.1-flash-image'], [])
     expect(mapping).toEqual({

frontend/src/composables/useModelWhitelist.ts

@@ -53,9 +53,11 @@ const geminiModels = [
   // This list is intentionally conservative (models commonly available across OAuth/API key).
   'gemini-2.0-flash',
   'gemini-2.5-flash',
+  'gemini-2.5-flash-image',
   'gemini-2.5-pro',
   'gemini-3-flash-preview',
-  'gemini-3-pro-preview'
+  'gemini-3-pro-preview',
+  'gemini-3.1-flash-image'
 ]
 
 // Sora
@@ -86,6 +88,7 @@ const antigravityModels = [
   'claude-sonnet-4-5-thinking',
   // Gemini 2.5 系列
   'gemini-2.5-flash',
+  'gemini-2.5-flash-image',
   'gemini-2.5-flash-lite',
   'gemini-2.5-flash-thinking',
   'gemini-2.5-pro',
@@ -291,7 +294,9 @@ const soraPresetMappings: { label: string; from: string; to: string; color: stri
 const geminiPresetMappings = [
   { label: 'Flash 2.0', from: 'gemini-2.0-flash', to: 'gemini-2.0-flash', color: 'bg-blue-100 text-blue-700 hover:bg-blue-200 dark:bg-blue-900/30 dark:text-blue-400' },
   { 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 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: '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: '3.1 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' }
 ]
 
 // Antigravity 预设映射（支持通配符）
@@ -314,6 +319,9 @@ const antigravityPresetMappings = [
   // Gemini 通配符映射
   { label: 'Gemini 3→Flash', from: 'gemini-3*', to: 'gemini-3-flash', color: 'bg-yellow-100 text-yellow-700 hover:bg-yellow-200 dark:bg-yellow-900/30 dark:text-yellow-400' },
   { label: 'Gemini 2.5→Flash', from: 'gemini-2.5*', to: 'gemini-2.5-flash', color: 'bg-orange-100 text-orange-700 hover:bg-orange-200 dark:bg-orange-900/30 dark:text-orange-400' },
+  { label: '2.5-Flash-Image透传', 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: '3.1-Flash-Image透传', 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' },
+  { label: '3-Pro-Image→3.1', from: 'gemini-3-pro-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' },
   { label: '3-Flash透传', from: 'gemini-3-flash', to: 'gemini-3-flash', color: 'bg-lime-100 text-lime-700 hover:bg-lime-200 dark:bg-lime-900/30 dark:text-lime-400' },
   { label: '2.5-Flash-Lite透传', from: 'gemini-2.5-flash-lite', to: 'gemini-2.5-flash-lite', color: 'bg-green-100 text-green-700 hover:bg-green-200 dark:bg-green-900/30 dark:text-green-400' },
   // 精确映射