Google didn't launch Gemini 3.5 Pro at Google I/O. Now, the company has blown past its promised launch date.

July 16 : Alphabet's Google is months behind schedule on the release of Gemini 3.5 Pro, its most powerful flagship AI model, as the tech giant works to improve its capabilities,…

In mid-May, Google announced Gemini 3.5 Flash at I/O 2026 and said the Pro version would arrive in June. That deadline has passed.