It's crazy. Are they doing any precomputing as you type, I wonder if you paste a block of text is it the same speed.
I pasted and instantly hit enter on this prompt: "I generated a filter set using REW v5.31.3 using real-world sweep tone measurements from the room I'm listening in . How can I use it as my MacOS output equalizer so that my spotify music is adjusted for this room and speakers"
and it gave a very reasonable answer in non-perceptible time.
No, it really does take ~0.03s to generate the answer. Try your browser's developer tools and watch the requests.
It’s crazy that you asked the very question whose answer spawned the sub thread, within the sub thread.
The magic is in the fact that they essentially have an ASIC llm device. There is no other trickery. The problem they will face is that it is actually locked in silicon, so upgrading models will be difficult, and likely require new hardware each time.