I’ve seen many announced but I don’t know which ones are actually free and publicly accessible through a website. For example there was a russian one called Gigachat and a chinese one by alibaba but I don’t know where to find them. There is ChatSonic but it’s limited so not the kind of option I’m looking for.
You should take a look at Databricks’ Dolly 2.0
It is a completely open source dataset containing 15,000 human-generated prompt/response pairs. And it can be used commercially without any licensing issues.