Update app.py

app.py

@@ -18,7 +18,7 @@ def ocr_with_pixtral(image):
     img_base64 = base64.b64encode(img_bytes).decode('utf-8')
 
     # Retrieve the API key from environment variables
-    api_key = "8pfom5pvX6ZNtQ8IT80gQidMx0btzHAt"
+    api_key = os.getenv('mistral_api_key')
 
     # Specify model
     model = "pixtral-12b-2409"