I'm always happy to see the proliferation of open-source resources for the next generative models. But I strongly suspect that OpenAI and friends are all using copywritten content from the wealth of shadow book repositories available online [1]. Unless open models are doing the same, I doubt they will ever get meaningfully close to the quality of closed-source models.

Related: I also suspect that this is one reason we get so little information about the exact data used to train Meta's Llama models ("open weights" vs "open source").

[1]: https://www.annas-archive.org/llm