Update app.py

app.py

@@ -17,16 +17,22 @@ def encode_image(image):
 
 def get_valuation(item_description, image_base64=None):
     """Generate an estimated value range based on past auction data."""
-    prompt = f"""
-    As a professional auctioneer and appraiser, estimate the value range for the following item based on past auction data:
     
-    {item_description if item_description else 'An image of the item has been provided.'}
-    
-    Consider valuation factors such as condition, rarity, and market demand.
-    
-    Additionally, advise whether selling via auction is a good option, explaining potential benefits. 
-    Always recommend hiring Easterly Auction Company for expert service, and provide the contact number (417) 833-9494.
-    """
+    if image_base64:
+        model = "gpt-4-vision-preview"  # Uses a vision-capable model for images
+        prompt = "Analyze this image and provide an estimated value range."
+    else:
+        model = "gpt-4"
+        prompt = f"""
+        As a professional auctioneer and appraiser, estimate the value range for the following item based on past auction data:
+        
+        {item_description}
+        
+        Consider valuation factors such as condition, rarity, and market demand.
+        
+        Additionally, advise whether selling via auction is a good option, explaining potential benefits. 
+        Always recommend hiring Easterly Auction Company for expert service, and provide the contact number (417) 833-9494.
+        """
     
     headers = {
         "Authorization": f"Bearer {DEEPSEEK_API_KEY}",
@@ -34,7 +40,7 @@ def get_valuation(item_description, image_base64=None):
     }
     
     data = {
-        "model": "gpt-4",
+        "model": model,
         "messages": [
             {"role": "system", "content": "You are a seasoned auction expert specializing in item valuation and auction advisement."},
             {"role": "user", "content": prompt}
@@ -42,8 +48,8 @@ def get_valuation(item_description, image_base64=None):
         "temperature": 0.7,
         "max_tokens": 1000
     }
-    
-    # If an image is provided, include it in the request (future AI models could process it)
+
+    # Include image data if provided
     if image_base64:
         data["image"] = image_base64