Not any i know of, played around today with Alphacoom (https://huggingface.co/mrm8488/Alpacoom) and got pretty Bad results then tried a BloomZ version (https://huggingface.co/mrm8488/bloomz-7b1-mt-ft-alpaca) and got results similar to the Alpaca-Native model. Maybe read the BloomZ paper it should be a pretty good basis to build a chat model, rest should depend on your Training approach and Data.