Gemini 3.8 Flash, from September 2, is still Google's newest core Flash model

Google's own release notes describe gemini-3.8-flash as "our most intelligent Flash model", and it is generally available. Its launch post is dated September 2, 2026, a day before this market opened, so it is background and cannot count. The same notes say gemini-3.7-flash was deprecated and replaced by 3.8. The recent cadence is the case for a surprise. Google's August 13 post for 3.7 Flash said it came three weeks after 3.6 Flash, and the September 2 post called 3.8 the third Flash release in six weeks. A 3.9 or a Gemini 4 Flash would qualify if it reached the public before November 30. Yet the evidence gathered since the window opened points elsewhere. The most recent Gemini item is Gemini Omni 1.2 Flash, made generally available on the Gemini API and Gemini for business in a post dated November 5. The rules exclude Omni variants, so it does not count. One outside tally of Google's releases also lists Gemini 4 Argon, priced through November 30, and Gemini 4 Carbon, announced October 28. Neither is a Flash model. So the forecast leans towards no qualifying Flash release by the deadline. The supplied research shows no 3.9 or Gemini 4 Flash announcement, though it covers only part of Google's output. Watch the Gemini API release notes for any new gemini-3.9-flash or Gemini 4 Flash identifier with general access before November 30.