Are the Spleeter pretrained models also MIT?

Hi! I'm Ignacio, indie developer from Spain. I'm building a music practice app for iPhone and Mac with on-device stem separation, sold as a one-time purchase.

The README says the code of Spleeter is MIT-licensed, but it doesn't say anything about the pretrained models (2 / 4 / 5 stems). Can you confirm if the model weights are also MIT, or at least usable in a commercial app? I would also need to convert them to another format (Core ML / MLX) to run them on device.

Thanks!

Start by reading the README's licensing information and checking the stated terms for the 2-, 4-, and 5-stem pretrained models. Confirm whether commercial use and conversion to Core ML or MLX are covered; done means recording a maintainer-confirmed answer for users.

Written by the indexing model from the issue text.