model update

Author: Guiners

genai/image-generation/imggen-mmflash-with-txt.js

@@ -33,7 +33,7 @@ async function generateContent(
   });
 
   const response = await client.models.generateContentStream({
-    model: 'gemini-2.5-flash-image-preview',
+    model: 'gemini-2.5-flash-image',
     contents:
       'Generate an image of the Eiffel tower with fireworks in the background.',
     config: {