Comment by Topfi

There was none for Fable 5.1, Opus 5.5, Sonnet 5.5, GPT-6.1 Sol or GPT-6.1 Terra and while Astra had a period between announcement and availability, it was a single day, so not sure that applies either.

Gemini 4 Argon (at best Sonnet/Terra level) meanwhile took weeks to “come out” after their public announcement and when it finally did, paying Google AI plan users couldn't access Argon on Gemini or Antigravity even a week after. Three weeks from announcement to accessible for paying customers is not standard outside Google and this has been a problem with every Gemini release for the last year, so even using governmental requirements as an excuse isn’t possible here.

I will say that I dislike how OpenAI releases model only for Work and Codex but not via Chat, Anthropics "everywhere all at once" strategy is I feel the most user friendly.