Personally I don't think that the use of previous research is an issue, the fact is that the investment and expertise required to take that research and create

Personally I don't think that the use of previous research is an issue, the fact is that the investment and expertise required to take that research and create GPT-4 were very significant and the en-devour was pretty risky. Very few people five years ago thought that very large models could be created that would be able to encode so much information or be able to retrieve it so well.