OpenAI wouldn't be here without the work that Yann Lecun did at Facebook (back when it was facebook). Science is built on top of science, that's just how things work.
Edit: I am not defending OpenAI and we are all enjoying the irony here. But it puts into perspective some of the wilder claims circulating that DeekSeek was able to somehow complete with OpenAI for only $5M, as if on a level playing field.
Edit: Responding to your edit, Deepseek only claimed that the final training run was $5m, not that the whole process caught that (they even call this out). I think it's important to acknowledge that, even if they did get some training data from OpenAI, this is a remarkable achievement.
We don’t know that of course. OpenAI claim to have some evidence and I guess we’ll just have to wait and see how this plays out.
There’s also a substantial difference between training of the entire internet and one that very specifically targets your competitor's products (or any specific work directly).
https://scholar.google.com/citations?view_op=view_citation&h...
Basically all LLM can trace their origin back to that paper.
This was just a single example though. The whole point is that people build on the work from the past, and that this is normal.