Comment by widdershins

Yeah, this speed is excellent! I'm using GPT-5 mini for my "AI tour guide" (simply summarizes Wikipedia articles for me on the fly, which are presented on my app based on geolocation), and it's always been a ~15 second wait for me before streaming of a large article summarization will begin. With GPT-5.4 it's around 2-3 seconds, and the quality seems at least as good. This is a huge UX improvement, it really starts to feel more 'real time'.