https://tokencost.app/blog/gemini-3-8-flash-introductory-price-expiry TokenCost en 2026-09-03T00:00:00.000Z Gemini 3.8 Flash arrives on an introductory price that is not counted from its introduction. It expires December 31 like the other two models on it, so the newest Flash gets 121 days of the discount and the one before it got 141.