Result of nvidia nims in openai SDK and API inconsistent

Hi all,
i check model llama-31-405b-instruct provide by NVIDIA NIMS : llama-3.1-405b-instruct Model by Meta | NVIDIA NIM
i try use with python SDK and shell script, it quite diffirence result,
Do you have any notes for me regarding preprocessing special characters in strings within the input data?
I think this is reason of inconsistent from python SDK and API
Thanks,
TraDinh