Some quick links I've seen of upcoming open source alternatives on chatgpt...
https://github.com/databrickslabs/dolly
https://huggingface.co/databricks/dolly-v2-12b
https://colab.research.google.com/drive/1A8Prplbjr16hy9eGfWd3-r34FOuccB2c?usp=sharing