Google Assistant switches off on 4 September, and there is no way back

Google has started emailing users to say that Google Assistant will be shut down on Android and Wear OS starting 4 September 2026. Gemini, its AI successor, takes over. The change reaches phones, tablets, Wear OS watches, headphones and vehicles running Android Auto. Cars with “Google built-in” keep Assistant for now.

The important detail is buried in the wording. The rollout may take a few weeks to reach everyone, but once your device switches, Assistant stops working and there is no toggle to go back. Google is also bringing Gemini to Google TV, Google Home speakers and smart displays. The shutdown was originally planned for 2025 and slipped by a year.

What is actually going on here

These two things are not the same kind of software, and that is the whole story. The old Assistant was largely deterministic: a fixed set of recognised commands mapped to fixed actions. Say “set a timer for ten minutes” and the same code path runs every time. It was limited, occasionally infuriating, and above all predictable.

Gemini is a large language model, which means it works by predicting a plausible response rather than matching a command to a rule. That makes it enormously more flexible. You can ask it something long and messy and it will usually understand. It also means the same request can produce slightly different behaviour on different days, and that a task can fail in ways a rule-based system simply could not.

For open-ended questions, this is a clear upgrade. For the boring stuff, it is a real test. Turning off the kitchen light, adding milk to a list, starting a timer with wet hands: those need to work identically every single time, and reliability at that level is not what language models are naturally best at. Google has had two years to close that gap, and September is when we find out how far it got.

A fair caveat: none of this is a surprise, and Gemini has been the default assistant on new Android phones for a while. Most people who have already switched report it handles conversation better and smart home control about the same or slightly worse, depending on setup.

What this means for you: if you use an Android phone or a Wear OS watch, expect the assistant to change under you in the next few weeks without you asking. Two things are worth doing before that happens. First, check any routines or smart home automations you rely on, since command phrasing and device names sometimes need adjusting after the switch. Second, if someone in your household uses Assistant for accessibility reasons, test the Gemini equivalents early rather than discovering a gap on a bad day. If you use an iPhone, or Alexa, nothing changes for you here, though the same replacement of rule-based assistants with language models is coming to those too.

Sources

• Google Assistant shutting down on Android and Wear OS in September, 9to5Google
• Google will shut down Google Assistant starting September 2026, The Decoder