Waymo Tests Gemini AI Inside Robotaxis to Talk to Riders

Waymo appears to be experimenting with a new way to interact with riders. The Alphabet-owned self-driving company is testing Gemini as an in-car AI assistant inside its robotaxis. The feature has not been officially announced yet. However, internal app code suggests something big is brewing.

The discovery comes from researcher Jane Manchun Wong, who found a detailed system prompt while analysing Waymo’s mobile app. The document outlines how Gemini would behave during a ride. It signals a deeper integration than a basic chatbot.

Designed as a Ride Companion

According to the system instructions, Gemini is meant to act as a friendly and helpful AI companion. Its goal is to improve the rider experience without being intrusive. The assistant uses simple language and avoids technical explanations.

Gemini is expected to keep responses short. Most answers are limited to one to three sentences. This design choice helps reduce distraction while maintaining clarity.

When activated through the in-car screen, Gemini can greet riders by name. It can also reference basic trip context, such as how often a rider has used Waymo before.

What AI Assistant Can and Cannot Control

The prompts reveal that Gemini can manage certain in-cabin features. These include temperature settings, lighting, and music. However, it cannot adjust seats, windows, routes, or volume levels.

If a rider asks for an unsupported action, Gemini responds politely. It uses phrases like “I can’t do that yet,” keeping expectations clear.

Notably, Gemini cannot take real-world actions. It cannot order food, make reservations, or handle emergencies.

Clear Separation From the Driver

One important rule stands out. Gemini must clearly separate itself from the autonomous driving system. It should never suggest that it controls the vehicle.

For example, if asked how the car sees the road, Gemini refers to “the Waymo Driver,” not itself. This distinction helps avoid confusion and reinforces safety messaging.

The assistant is also instructed to avoid discussing real-time driving events. It cannot explain incidents or comment on videos involving Waymo vehicles.

AI's Growing Role at Waymo

This is not Gemini’s first appearance at Waymo. The company has already used Gemini’s world knowledge to train vehicles for rare and complex scenarios.

While Waymo has not confirmed a public rollout, the test signals a shift. Robotaxis may soon come with an AI voice that informs, reassures, and guides riders through their journey.