
OpenUTAU/UTAU
Dokuo Leon is optimized for OpenUTAU, but his voicebank should also work for original UTAU.Dokuo Leon has:
-Japanese VCV multipitch voicebank
(D#2, A#2, E3)
-English Arpasing monopitch voicebank
-Terms of Service you MUST read. They are not inherently strict, but it's important you read them.(Leon's JP voicebank was originally going to have 5-7 pitches, but ultimately that will come at a later update.)The Japanese voicebank is lower quality and is expected to receive another update within this year.

DiffSinger
Diffsinger is made for OpenUTAU.
Dokuo Leon currently does not have a DiffSinger voicebank, but there are plans for one.
There is, however, no guarantee that a Diffsinger voicebank will release.

DeepVocal
Dokuo Leon currently does not have a DeepVocal voicebank, but there are plans for one.
There is, however, no guarantee that a DeepVocal voicebank will release.