diff --git a/frontend/components/admin/ai/OcrSandboxPromptManager.tsx b/frontend/components/admin/ai/OcrSandboxPromptManager.tsx
index feab03fa..fd3855d8 100644
--- a/frontend/components/admin/ai/OcrSandboxPromptManager.tsx
+++ b/frontend/components/admin/ai/OcrSandboxPromptManager.tsx
@@ -108,7 +108,7 @@ export default function OcrSandboxPromptManager() {
   // 2-step flow states
   const [sandboxStep, setSandboxStep] = useState<'ocr' | 'ai'>('ocr');
   const [selectedOcrEngine, setSelectedOcrEngine] = useState<
-    'auto' | 'tesseract' | 'typhoon-ocr-3b'
+    'auto' | 'tesseract' | 'typhoon-ocr-3b' | 'typhoon-ocr1.5-3b'
   >('auto');
   const [ocrResult, setOcrResult] = useState<{
     requestPublicId: string;
@@ -386,14 +386,15 @@ export default function OcrSandboxPromptManager() {
                           value={selectedOcrEngine}
                           onChange={(e) =>
                             setSelectedOcrEngine(
-                              e.target.value as 'auto' | 'tesseract' | 'typhoon-ocr-3b'
+                              e.target.value as 'auto' | 'tesseract' | 'typhoon-ocr-3b' | 'typhoon-ocr1.5-3b'
                             )
                           }
                           className="w-full rounded-md border border-input bg-background px-3 py-2 text-xs"
                         >
                           <option value="auto">Auto (Current Baseline)</option>
                           <option value="tesseract">Tesseract OCR</option>
-                          <option value="typhoon-ocr-3b">Typhoon OCR-3B</option>
+                          <option value="typhoon-ocr-3b">Typhoon OCR-3B (v1.0)</option>
+                          <option value="typhoon-ocr1.5-3b">Typhoon OCR-3B (v1.5)</option>
                         </select>
                       </div>
                       <div
diff --git a/frontend/lib/services/admin-ai.service.ts b/frontend/lib/services/admin-ai.service.ts
index 9e4f6078..326ab51c 100644
--- a/frontend/lib/services/admin-ai.service.ts
+++ b/frontend/lib/services/admin-ai.service.ts
@@ -170,7 +170,7 @@ export const adminAiService = {
 
   submitSandboxOcr: async (
     file: File,
-    engineType: 'auto' | 'tesseract' | 'typhoon-ocr-3b' = 'auto'
+    engineType: 'auto' | 'tesseract' | 'typhoon-ocr-3b' | 'typhoon-ocr1.5-3b' = 'auto'
   ): Promise<{ requestPublicId: string; jobId: string; status: string }> => {
     const formData = new FormData();
     formData.append('file', file);