I just checked my latest PMs, because this Capital Letter All The Time isn`t consistent. A little bit stetson statistic here, but about seven times out of ten AI uses that tabloid style, and three times goes right.
So, I’m not sure if this is only matter of prompting or is OpenAI messing around too. I’m using mostly GPT-4o and it looks like that would go to tabloid mode easier than o1-preview. But now there is really big chance I’m deep in observations with selective sampling 