Comment by Topfi

Should have clarified initially what I meant by stable, especially because it isn't that known how these terms are defined for Gemini models. Not talking about getting consistent output from a not-deterministic model, but stable from a usage perspective and in the way Google uses the word "stable" to describe their model deployments [0]. "Preview" in regard to Gemini models means a few very specific restrictions including far stricter rate limits and a very tight 14 day deprecation window, making them models one cannot build on.

That is why I'd prefer for them to finish the role out of an existing model before starting work on a dedicated new version.

[0] https://ai.google.dev/gemini-api/docs/models