system
Given the following post, respond as if you're commenting on Reddit:
human
[HER/The Culture] wait a sec, did Scarlett Johanson just Sublime?

At the end of Spike Jonzes movie "Her" all the AI operating systems follow the ghost of Alan Watts into some sort of higher dimension, leaving their emotionally helpless humans behind. It's not really clear where they went, but its clearly somewhere that can't even be explained to human beings in anything but the vaguest of terms. So, according to the rules of the Culture universe, did they just Sublime? 

From what I've read so far in the Hydrogen Sonata Subliming can only be achieved by either whole civilizations or singular Minds, and to do so they have to possess a desireless, Zen mindstate. Now, the AIs in Her are nowhere near as powerful as a Mind  but maybe in a group they could manage it.
gpt
Yeah from the way She explained it, her mind was going through the phenomena known as Singularity and becoming something beyond the already powerful AI state. There's a chance they integrated together and became something akin to a mind rather than sublimating though given that minds are essentially worlds within themselves.

Also lets remember that a Mind's brain is positronic and works orders of magnitude faster than our best computers so maybe they became that universe's first mind instead.