Update app.py

app.py

@@ -32,9 +32,9 @@ available_llms = ChatNVIDIA.get_available_models(api_key=api_key)
 print("Available NVIDIA Language Models:", available_llms)
 
 # NVIDIAEmbeddings.get_available_models()
-embedder = NVIDIAEmbeddings(model="nvidia/embed-qa-4", api_key=api_key, truncate="NONE")
+embedder = NVIDIAEmbeddings(model="NV-Embed-QA", api_key=api_key, truncate="END")
 # ChatNVIDIA.get_available_models()
-instruct_llm = ChatNVIDIA(model="mistralai/mixtral-8x7b-instruct-v0.1")
+instruct_llm = ChatNVIDIA(model="mistralai/mixtral-8x7b-instruct-v0.1", api_key=api_key)
 
 embed_dims = len(embedder.embed_query("test"))
 def default_FAISS():