diff --git a/src/components/admin/AIConfig/AIConfig.tsx b/src/components/admin/AIConfig/AIConfig.tsx
index 4454dfe..759f7b8 100644
--- a/src/components/admin/AIConfig/AIConfig.tsx
+++ b/src/components/admin/AIConfig/AIConfig.tsx
@@ -11,10 +11,6 @@ import { toast } from 'sonner';
 
 interface AIConfigData {
   aiEnabled: boolean;
-  aiProvider: 'claude' | 'openai' | 'gemini';
-  claudeApiKey: string;
-  openaiApiKey: string;
-  geminiApiKey: string;
   aiRemarkGeneration: boolean;
   maxRemarkChars: number;
 }
@@ -22,19 +18,10 @@ interface AIConfigData {
 export function AIConfig() {
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState(false);
-  const [showApiKeys, setShowApiKeys] = useState<Record<string, boolean>>({
-    claude: false,
-    openai: false,
-    gemini: false
-  });
   const [config, setConfig] = useState<AIConfigData>({
     aiEnabled: true,
-    aiProvider: 'claude',
-    claudeApiKey: '',
-    openaiApiKey: '',
-    geminiApiKey: '',
     aiRemarkGeneration: true,
-    maxRemarkChars: 500
+    maxRemarkChars: 2000
   });
 
   useEffect(() => {
@@ -54,10 +41,6 @@ export function AIConfig() {
 
       setConfig({
         aiEnabled: configMap['AI_ENABLED'] === 'true',
-        aiProvider: (configMap['AI_PROVIDER'] || 'claude') as 'claude' | 'openai' | 'gemini',
-        claudeApiKey: configMap['CLAUDE_API_KEY'] || '',
-        openaiApiKey: configMap['OPENAI_API_KEY'] || '',
-        geminiApiKey: configMap['GEMINI_API_KEY'] || '',
         aiRemarkGeneration: configMap['AI_REMARK_GENERATION_ENABLED'] === 'true',
         maxRemarkChars: parseInt(configMap['AI_MAX_REMARK_LENGTH'] || '2000')
       });
@@ -76,10 +59,6 @@ export function AIConfig() {
       // Save all configurations
       await Promise.all([
         updateConfiguration('AI_ENABLED', config.aiEnabled.toString()),
-        updateConfiguration('AI_PROVIDER', config.aiProvider),
-        updateConfiguration('CLAUDE_API_KEY', config.claudeApiKey),
-        updateConfiguration('OPENAI_API_KEY', config.openaiApiKey),
-        updateConfiguration('GEMINI_API_KEY', config.geminiApiKey),
         updateConfiguration('AI_REMARK_GENERATION_ENABLED', config.aiRemarkGeneration.toString()),
         updateConfiguration('AI_MAX_REMARK_LENGTH', config.maxRemarkChars.toString())
       ]);
@@ -100,19 +79,6 @@ export function AIConfig() {
     setConfig(prev => ({ ...prev, ...updates }));
   };
 
-  const toggleApiKeyVisibility = (provider: 'claude' | 'openai' | 'gemini') => {
-    setShowApiKeys(prev => ({
-      ...prev,
-      [provider]: !prev[provider]
-    }));
-  };
-
-  const maskApiKey = (key: string): string => {
-    if (!key || key.length === 0) return '';
-    if (key.length <= 8) return '••••••••';
-    return key.substring(0, 4) + '••••••••' + key.substring(key.length - 4);
-  };
-
   if (loading) {
     return (
       <Card className="shadow-lg border-0 rounded-md">
@@ -134,7 +100,7 @@ export function AIConfig() {
           <div>
             <CardTitle className="text-lg font-semibold text-gray-900">AI Features Configuration</CardTitle>
             <CardDescription className="text-sm text-gray-600">
-              Configure AI provider, API keys, and enable/disable AI-powered features
+              Configure Vertex AI Gemini settings and enable/disable AI-powered features
             </CardDescription>
           </div>
         </div>
@@ -142,18 +108,7 @@ export function AIConfig() {
       <CardContent className="space-y-6">
         <AIProviderSettings
           aiEnabled={config.aiEnabled}
-          aiProvider={config.aiProvider}
-          claudeApiKey={config.claudeApiKey}
-          openaiApiKey={config.openaiApiKey}
-          geminiApiKey={config.geminiApiKey}
-          showApiKeys={showApiKeys}
           onAiEnabledChange={(enabled) => updateConfig({ aiEnabled: enabled })}
-          onProviderChange={(provider) => updateConfig({ aiProvider: provider })}
-          onClaudeApiKeyChange={(key) => updateConfig({ claudeApiKey: key })}
-          onOpenaiApiKeyChange={(key) => updateConfig({ openaiApiKey: key })}
-          onGeminiApiKeyChange={(key) => updateConfig({ geminiApiKey: key })}
-          onToggleApiKeyVisibility={toggleApiKeyVisibility}
-          maskApiKey={maskApiKey}
         />
 
         <Separator />
diff --git a/src/components/admin/AIConfig/AIProviderSettings.tsx b/src/components/admin/AIConfig/AIProviderSettings.tsx
index 3e25560..c7df8fc 100644
--- a/src/components/admin/AIConfig/AIProviderSettings.tsx
+++ b/src/components/admin/AIConfig/AIProviderSettings.tsx
@@ -1,63 +1,25 @@
-import { Label } from '@/components/ui/label';
-import { Input } from '@/components/ui/input';
 import { Switch } from '@/components/ui/switch';
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '@/components/ui/select';
-import { Brain, Eye, EyeOff, Key } from 'lucide-react';
-import { Button } from '@/components/ui/button';
+import { Brain } from 'lucide-react';
 
 interface AIProviderSettingsProps {
   aiEnabled: boolean;
-  aiProvider: 'claude' | 'openai' | 'gemini';
-  claudeApiKey: string;
-  openaiApiKey: string;
-  geminiApiKey: string;
-  showApiKeys: Record<string, boolean>;
   onAiEnabledChange: (enabled: boolean) => void;
-  onProviderChange: (provider: 'claude' | 'openai' | 'gemini') => void;
-  onClaudeApiKeyChange: (key: string) => void;
-  onOpenaiApiKeyChange: (key: string) => void;
-  onGeminiApiKeyChange: (key: string) => void;
-  onToggleApiKeyVisibility: (provider: 'claude' | 'openai' | 'gemini') => void;
-  maskApiKey: (key: string) => string;
 }
 
-const PROVIDERS = [
-  { value: 'claude', label: 'Claude (Anthropic)', description: 'Advanced AI by Anthropic' },
-  { value: 'openai', label: 'OpenAI (GPT-4)', description: 'GPT-4 by OpenAI' },
-  { value: 'gemini', label: 'Gemini (Google)', description: 'Gemini by Google' }
-];
-
 export function AIProviderSettings({
   aiEnabled,
-  aiProvider,
-  claudeApiKey,
-  openaiApiKey,
-  geminiApiKey,
-  showApiKeys,
-  onAiEnabledChange,
-  onProviderChange,
-  onClaudeApiKeyChange,
-  onOpenaiApiKeyChange,
-  onGeminiApiKeyChange,
-  onToggleApiKeyVisibility,
-  maskApiKey
+  onAiEnabledChange
 }: AIProviderSettingsProps) {
   return (
     <Card className="border-0 shadow-sm">
       <CardHeader className="pb-3">
         <div className="flex items-center gap-2">
           <Brain className="w-5 h-5 text-re-green" />
-          <CardTitle className="text-base font-semibold">AI Provider & API Keys</CardTitle>
+          <CardTitle className="text-base font-semibold">Vertex AI Gemini Configuration</CardTitle>
         </div>
         <CardDescription className="text-sm">
-          Select your AI provider and configure API keys
+          Configure AI features. Model and region are configured via environment variables.
         </CardDescription>
       </CardHeader>
       <CardContent className="space-y-4">
@@ -74,145 +36,7 @@ export function AIProviderSettings({
             onCheckedChange={onAiEnabledChange}
           />
         </div>
-
-        {aiEnabled && (
-          <>
-            {/* Provider Selection */}
-            <div className="space-y-2">
-              <Label htmlFor="ai-provider" className="text-sm font-medium">
-                AI Provider
-              </Label>
-              <Select value={aiProvider} onValueChange={(value: any) => onProviderChange(value)}>
-                <SelectTrigger 
-                  id="ai-provider"
-                  className="border-gray-200 focus:border-re-green focus:ring-2 focus:ring-re-green/20"
-                >
-                  <SelectValue placeholder="Select AI provider" />
-                </SelectTrigger>
-                <SelectContent>
-                  {PROVIDERS.map((provider) => (
-                    <SelectItem key={provider.value} value={provider.value}>
-                      <div className="flex items-center gap-2">
-                        <span className="font-medium">{provider.label}</span>
-                        <span className="text-xs text-muted-foreground">-</span>
-                        <span className="text-xs text-muted-foreground">{provider.description}</span>
-                      </div>
-                    </SelectItem>
-                  ))}
-                </SelectContent>
-              </Select>
-            </div>
-
-            {/* API Keys for each provider */}
-            <div className="space-y-4 pt-2">
-              <Label className="text-sm font-medium flex items-center gap-2">
-                <Key className="w-4 h-4" />
-                API Keys
-              </Label>
-              
-              {/* Claude API Key */}
-              <div className="space-y-2">
-                <Label htmlFor="claude-key" className="text-xs text-muted-foreground">
-                  Claude API Key
-                </Label>
-                <div className="flex gap-2">
-                  <Input
-                    id="claude-key"
-                    type={showApiKeys.claude ? 'text' : 'password'}
-                    value={claudeApiKey}
-                    onChange={(e) => onClaudeApiKeyChange(e.target.value)}
-                    placeholder={showApiKeys.claude ? "sk-ant-..." : maskApiKey(claudeApiKey) || "sk-ant-..."}
-                    className="border-gray-200 focus:border-re-green focus:ring-2 focus:ring-re-green/20 font-mono text-sm"
-                  />
-                  <Button
-                    type="button"
-                    variant="outline"
-                    size="icon"
-                    onClick={() => onToggleApiKeyVisibility('claude')}
-                    className="border-gray-200"
-                  >
-                    {showApiKeys.claude ? (
-                      <EyeOff className="w-4 h-4" />
-                    ) : (
-                      <Eye className="w-4 h-4" />
-                    )}
-                  </Button>
-                </div>
-                <p className="text-xs text-muted-foreground">
-                  Get your API key from console.anthropic.com
-                </p>
-              </div>
-
-              {/* OpenAI API Key */}
-              <div className="space-y-2">
-                <Label htmlFor="openai-key" className="text-xs text-muted-foreground">
-                  OpenAI API Key
-                </Label>
-                <div className="flex gap-2">
-                  <Input
-                    id="openai-key"
-                    type={showApiKeys.openai ? 'text' : 'password'}
-                    value={openaiApiKey}
-                    onChange={(e) => onOpenaiApiKeyChange(e.target.value)}
-                    placeholder={showApiKeys.openai ? "sk-..." : maskApiKey(openaiApiKey) || "sk-..."}
-                    className="border-gray-200 focus:border-re-green focus:ring-2 focus:ring-re-green/20 font-mono text-sm"
-                  />
-                  <Button
-                    type="button"
-                    variant="outline"
-                    size="icon"
-                    onClick={() => onToggleApiKeyVisibility('openai')}
-                    className="border-gray-200"
-                  >
-                    {showApiKeys.openai ? (
-                      <EyeOff className="w-4 h-4" />
-                    ) : (
-                      <Eye className="w-4 h-4" />
-                    )}
-                  </Button>
-                </div>
-                <p className="text-xs text-muted-foreground">
-                  Get your API key from platform.openai.com
-                </p>
-              </div>
-
-              {/* Gemini API Key */}
-              <div className="space-y-2">
-                <Label htmlFor="gemini-key" className="text-xs text-muted-foreground">
-                  Gemini API Key
-                </Label>
-                <div className="flex gap-2">
-                  <Input
-                    id="gemini-key"
-                    type={showApiKeys.gemini ? 'text' : 'password'}
-                    value={geminiApiKey}
-                    onChange={(e) => onGeminiApiKeyChange(e.target.value)}
-                    placeholder={showApiKeys.gemini ? "AIza..." : maskApiKey(geminiApiKey) || "AIza..."}
-                    className="border-gray-200 focus:border-re-green focus:ring-2 focus:ring-re-green/20 font-mono text-sm"
-                  />
-                  <Button
-                    type="button"
-                    variant="outline"
-                    size="icon"
-                    onClick={() => onToggleApiKeyVisibility('gemini')}
-                    className="border-gray-200"
-                  >
-                    {showApiKeys.gemini ? (
-                      <EyeOff className="w-4 h-4" />
-                    ) : (
-                      <Eye className="w-4 h-4" />
-                    )}
-                  </Button>
-                </div>
-                <p className="text-xs text-muted-foreground">
-                  Get your API key from ai.google.dev
-                </p>
-              </div>
-            </div>
-          </>
-        )}
       </CardContent>
     </Card>
   );
 }
-