Sadly I think this OpenAI announcement is hot air. I am now (unfortunately) much less enthusiastic about upcoming OpenAI announcements. This is the first one that has been extremely underwhelming (though the big announcement about structured responses (months after it had already been supported nearly identically via JSONSchema) was in hindsight also hot air.
I think OpenAI is making the same mistake Google made with the search interface. Rather than considering it a command line to be mastered, Google optimized to generate better results for someone who had no mastery of how to type a search phrase.
Similarly, OpenAI is optimizing for someone who doesn't know how to interact with a context-limited LLM. Sure it helps the low end, but based on my initial testing this is not going to be helpful to anyone who had already come to understand how to create good prompts.
What is needed is the ability for the LLM to create a useful, ongoing meta-context for the conversation so that it doesn't make stupid mistakes and omissions. I was really hoping OpenAI would have something like this ready for use.