diff --git a/App.tsx b/App.tsx
index fee53ab..93494d3 100644
--- a/App.tsx
+++ b/App.tsx
@@ -139,7 +139,7 @@ export default function App() {
       `;
 
       const response = await ai.models.generateContent({
-        model: 'gemini-3-flash-preview',
+        model: 'gemini-3.1-pro-preview',
         contents: prompt,
         config: {
           responseMimeType: "application/json",
@@ -193,7 +193,7 @@ export default function App() {
         Format as a simple comma-separated list of items found.`;
 
         const response = await ai.models.generateContent({
-          model: 'gemini-3-flash-preview',
+          model: 'gemini-3.1-pro-preview',
           contents: {
             parts: [
               { inlineData: { data: base64Data, mimeType: file.type } },
@@ -333,7 +333,7 @@ export default function App() {
         - Tone: Professional, senior, strategic, everyday English.
         - Formatting: Use Markdown.
       `;
-      const response = await ai.models.generateContent({ model: 'gemini-3-flash-preview', contents: prompt });
+      const response = await ai.models.generateContent({ model: 'gemini-3.1-pro-preview', contents: prompt });
       setAuditText(response.text || "Audit unavailable.");
     } catch (error) {
       setAuditText("Error generating AI audit.");
diff --git a/README.md b/README.md
index 73b3b27..9d7754c 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Built with React 19, TypeScript, and Vite. No backend required — everything ru
 
 ### AI Integration
 
-Uses Google Gemini 2.0 Flash for three distinct capabilities:
+Uses Google Gemini 3.1 Pro (`gemini-3.1-pro-preview`) for three distinct capabilities:
 
 - **Scope Analysis** — Analyzes a project brief and matches it to assets in the catalog
 - **Image OCR** — Extracts text from uploaded screenshots of briefs