Google DeepMind chief Koray Kavukcuoglu said on September 24, 2026 that Gemini 4 was in post-training with a push to ship an early build as soon as possible. On September 30 Google announced Gemini 4 Argon: 1 million token output limit, introductory $2/$10 per million tokens, and vendor-run leads on Vals Index and DeepSWE v1.1. Public API access was still pending as of October 1, 2026. Earlier community labels such as Gemini 4 Pro remain unofficial.