I'm giving the new Sonnet a chance, although for my use as a writing companion so far, Opus has been king among all the models I've tried. However, I've been u

I'm giving the new Sonnet a chance, although for my use as a writing companion so far, Opus has been king among all the models I've tried. However, I've been using Opus as a writing companion for several months, especially when you have writer's block and ask it for alternative phrases, it was super creative. But in recent weeks I was noticing a degradation in quality. My impression is that the model was degrading. Could this be technically possible? Might it be some kind of programmed obsolescence to hype new models?