i'm kinda impressed by how viable OpenUtau is, for an open source software. i mean, practically no one uses open source software in the music production world, unless you're a specifically a foss nerd. no one know what Ardour is unless you're in a foss subreddit. the closest thing we have is Vital, which only open sourced an old version.
OpenUtau, on the other hand, is not used because it's open source - no utau user gives a shit about foss. it's not mainstream by any means, but people do consider it an option.
and it has ✨AI✨! Two different AI-based renderers, in fact! idk why i expected the latest technologies to be gatekept by proprietary software.
haven't tried NNSVS/ENUNU yet cause the setup seems like a pain, but DiffSinger is built-in, with minimal setup.
it is super buggy, it is unpopular, but it exceed my expectations, cause i have very low expectations when i hear "open source" and "music production" together.