Next Gemini Pro Model Release prediction

Slight lean · Yes 58.76%. This is a modest probability edge, not a high-certainty outcome. Google began rolling out Gemini 4 Argon to AI Pro and Ultra subscribers in the Gemini app on October 13, two weeks after it went only to cybersecurity defenders. Developers can also use it through the paid Gemini API. That is a real public release, but it is not obviously the one this question asks about. The question needs a model labelled "Pro". Reports indicate that Argon is larger than Google's previous line of "Pro" Models, and one report says Google has yet to specify whether Argon will be classed as a Pro model or as a new tier above it. The selected outcome, that no next Pro model arrives by October 31, rests on that open naming question. It is not a settled fact. The history also points to caution. Sundar Pichai said in May that the next major release would come in June. The model widely expected to be Gemini 3.5 Pro never appeared, and Google reportedly scrapped it. Gemini 3.1 Pro, from February 2026, was still described as a preview in early October. Meanwhile Google has been shipping Flash models, which do not count. The lean is not strong. If Google or credible reporting labels Argon a Pro model, the question resolves the other way, because the rollout is already public. It could also resolve that way if Google quickly ships another Pro-labelled model, such as a GA version of 3.1 Pro. Watch for Google's official wording on whether Argon is a Pro model or a separate tier above Pro.