diff --git a/supabase/functions/_shared/visionAnalysis.ts b/supabase/functions/_shared/visionAnalysis.ts
index 5e9dc3e..c9faa25 100644
--- a/supabase/functions/_shared/visionAnalysis.ts
+++ b/supabase/functions/_shared/visionAnalysis.ts
@@ -387,7 +387,7 @@ export async function analyzeScreenshot(
   try {
     console.log(`[vision] Analyzing screenshot: ${pageType} (${Math.round(base64.length / 1024)}KB)`);
     const res = await fetchWithRetry(
-      `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=${geminiKey}`,
+      `https://generativelanguage.googleapis.com/v1beta/models/gemini-3.5-flash:generateContent?key=${geminiKey}`,
       {
         method: "POST",
         headers: { "Content-Type": "application/json" },
@@ -399,8 +399,10 @@ export async function analyzeScreenshot(
             ],
           }],
           generationConfig: {
+            // gemini-2.0-flash 는 Google 이 내려 404 다 (2026-10-07 확인). 3.5-flash 는 답 전에 내부 추론 토큰(약 550)을 쓰고
+          // 그것도 출력 한도에 들어가므로 JSON 이 잘리지 않게 한도를 넉넉히 둔다.
             temperature: 0.1,
-            maxOutputTokens: 2048,
+            maxOutputTokens: 4096,
           },
         }),
       },