Update app.py

LLM mistralai/Mistral-Nemo-Instruct-2407

app.py

@@ -141,7 +141,7 @@ def main() -> None:
     prompt = ChatPromptTemplate.from_template(prompt)
 
     ## from llama3.2:latest to unsloth/Llama-3.2-3B mistralai/Mistral-Nemo-Instruct-2407
-    model = ChatOllama(model="llama3.2:latest")
+    model = ChatOllama(model="mistralai/Mistral-Nemo-Instruct-2407")