I have but only via the chat interface. I wasn’t particularly impressed, and for my purposes I’d rather use chained prompts via the API than try for “one shot”.

I have but only via the chat interface. I wasn’t particularly impressed, and for my purposes I’d rather use chained prompts via the API than try for “one shot”. However that could be because I’ve not amended my prompting style extensively enough. From what I’ve read o1 pro delivers most benefits from quite a different way of promoting.