Google has begun swapping in a new model behind AI Mode, its conversational search experience. Robby Stein of Google confirmed on X that Gemini 3.7 Flash is rolling out today worldwide inside AI Mode, though only for subscribers on the AI Pro and AI Ultra plans and only in English.
The rollout followed the model’s general release one day earlier, when Google positioned Gemini 3.7 Flash as a workhorse model built for coding and agentic tasks, with no mention of a search application. Search Engine Land asked Google directly about a Search rollout, prompting Stein’s confirmation.
Stein said the new model sharpens AI Mode’s ability to follow instructions and read user intent, producing more useful answers. Eligible subscribers can switch to it manually by selecting the model through the plus icon inside the AI Mode interface; Google has signaled a wider rollout to free-tier users within weeks or months.
The model generating AI Mode’s answers is shifting beneath a surface that search teams are already trying to measure. Any change in which sources get cited would have a cause invisible to standard ranking reports, since the underlying model was swapped rather than the ranking algorithm.
Barry Schwartz reported the rollout for Search Engine Land on August 14, 2026, citing Robby Stein of Google.
