[k__]

"if you finetune on your own data (eg internal wiki) does it then retain the near-perfect recall"

No, that's one of the primary reasons for RAG.

[theptip]

I think you are misunderstanding. This post is about new capabilities in GPT-4o. So the existing reasons for RAG may not hold for the new model.

Unless you have some evals showing that the previous results justifying RAG also apply to GPT-4o?