GPT 1 and 2 were both more open than later releases. However I’m not sure any are fully FOSS.
Comment on Elon Musk asks court to block OpenAI conversion from nonprofit to for-profit
madis@lemm.ee 2 weeks agoThey used to be? When?
ranandtoldthat@beehaw.org 2 weeks ago
boonhet@lemm.ee 2 weeks ago
Okay, I was a bit wrong - they were not REALLY open source, but they had the whitepaper available, they published the dataset, and you could download the model itself, just not the source code. You can find it here