Update app.py

app.py

@@ -8,7 +8,7 @@ from langchain_huggingface.embeddings import HuggingFaceEmbeddings
 from langchain_chroma import Chroma
 
 def rag_retriever(message, history, system_prompt, num_sources=4, temperature=0):
-    chat = ChatGroq(temperature=temperature, model_name="llama3-70b-8192", api_key=os.getenv("GROQ_API_KEY"))
+    chat = ChatGroq(temperature=temperature, model_name="openai/gpt-oss-20b", api_key=os.getenv("GROQ_API_KEY"))
 
     embeddings = HuggingFaceEmbeddings(model_name="avsolatorio/GIST-large-Embedding-v0")