Update app.py

app.py

@@ -24,7 +24,7 @@ if not groq_api_key:
     raise ValueError("GROQ_API_KEY environment variable not set!")
 
 client = Groq(api_key=groq_api_key)
-MODEL_NAME = "mistral-7b-chat"  # Use a smaller, deployable Groq model
+MODEL_NAME = "llama-3.3-70b-versatile"  # Use exactly this model
 
 # Global storage
 sections = {}
@@ -132,7 +132,7 @@ Generate a structured scientific summary:
 
 Section Title: {section_title}
 Section Content:
-{content[:2500]}
+{content[:2500]}  # truncate to avoid exceeding model context
 """
 
     try: