Google's Gemini 1.0 Pro chatbot is now available to Google Messages beta testers. To use it, you need to have RCS Messaging enabled, a Google Account, and a newer phone like the Pixel 6 or a newer Samsung Galaxy. Simply start a new Gemini chat in the Google Messages app. Gemini can also access information from Google apps such as Gmail, Maps, Flights, Hotels, and YouTube. Note that chats are not encrypted end-to-end. Gemini over RCS currently works in 165 countries, but not in the European Union. This shows how Google can use its power over Android to get more people using Gemini quickly.
Sources:
Google, via 9to5 Google