Mostly Lora training not full finetunes. Eval for image gen is esp. hard because if you look at AI generated images of someone for too long you can start to miss which one looks more similar, even with your own images.

And yes model training is available on the site, the serverless pipeline itself was easy, making it fast(less than an hour) and have the most similarity while being flexible enough for a general user was the hard part.

Let me know if that answers your question