Google will release Gemini 3.9+ Flash as core model

Google will release a public Gemini Flash model labeled 3.9 or higher. Gemini 3.8 Flash was released on September 2, 2026 and was the fourth distinct Flash model Google shipped in under four months. Koray Kavukcuoglu said in September 2026 that Gemini 4 had entered early post-training and that he w…