The author updated their code a couple of days ago, and it runs smoothly on my end, producing results in about one minute. https://github.com/VectorSpaceLab/OmniGen
Left it running 1 hour nothing happens. Maybe this is a social experiment.
Left it running overnight. Set output to 512x512 in an attempt to speed things up. Nothing.
Second attempt, no output no matter how long it's left running.
I think there might be an issue with this website; it doesn't seem to be their official site. It's recommended to use the official code and demo: https://vectorspacelab.github.io/OmniGen/
Took a few minutes to load, some assets download at less than 1kbps. The first 3 times I got a "Connection error" after 30s. The 4th time has now been running for 5m.
Seems far more likely it's a transient unhandled exception which isn't bubbling up to let the frontend know.
On an A100 running 512x512 takes roughly 20s for one image+text input (50 iterations)