Having an unreleased research model really isn't some kind of brag. If you read some AI research papers, it's extremely obvious that there are a lot of research

Having an unreleased research model really isn't some kind of brag. If you read some AI research papers, it's extremely obvious that there are a lot of research models that never get released, because of all the "we trained a bunch of models and picked the best one" that is going on. So if anything you can expect the unreleased models to be worse than the released ones.