Waymo brings self-driving taxis to Tokyo

Regulatory-backed entry into Tokyo’s core mobility market

Waymo, Go and Nihon Kotsu announced plans to start driverless taxi operations in Tokyo in 2027. The service is positioned as Japan’s first commercial Level 4 fully autonomous taxi offering. No human operator will be on board under defined operating conditions.

The three companies plan to begin with a small fleet. They will expand in stages to around 100 vehicles across key Tokyo neighbourhoods, subject to safety validation and formal approvals. Rides will be offered through both the Go and Waymo apps once the service is fully cleared and unmanned operations are authorised.

Since 2025, Waymo and its partners have been running on-road validation across seven Tokyo wards. The goal is to adapt the autonomous system to the capital’s dense, complex traffic environment. Go has said that these trials focus on integrating Waymo’s technology with local road rules and operating conditions, using human safety drivers while data are collected and software is tuned.

As a result, the planned 2027 launch builds on several years of real-world performance data rather than a greenfield deployment. Regulatory clearance will draw on Japan’s Road Traffic Act and Road Transportation Act. Multiple authorities are involved, including the Ministry of Land, Infrastructure and Transport, the National Police Agency, the Tokyo Metropolitan Government and relevant ward governments.

However, the companies have not yet set a precise start date. They emphasise that full commercial service will only follow once permits and licences under these frameworks are granted and technology validation is complete. By contrast with earlier Japanese pilots that kept a driver in the front seat, the Tokyo service is explicitly framed as Level 4.

One statement from Nihon Kotsu and Go describes the goal as running Level 4 fully unmanned taxis in Tokyo during 2027, with operations scaled up in phases towards about 100 vehicles. Bloomberg reporting notes that the partners expect to deploy those vehicles across several central wards, using the two apps to manage bookings and dispatch. For domestic taxi operators, the alliance signals that foreign autonomous technology will be embedded through local platforms rather than competing head-on with traditional fleets.

What does the deal mean for investors?

For investors, the Waymo Tokyo robotaxis plan marks a significant diversification of Waymo’s commercial footprint beyond its existing US markets. Tekedra Mawakana, Waymo’s co-chief executive, has highlighted that the company already provides more than 500,000 rides per week in existing operations. She also claims that its autonomous driving has been proven to be more than 15 times safer than human drivers — metrics that underpin the case it presents to Japanese regulators and partners.

Tokyo’s adoption of Level 4 robotaxis by 2027 positions Japan as a reference market for autonomous mobility in Asia, alongside Waymo’s established US services. The partnership also creates potential upside across sensor, compute and mapping supply chains that feed Waymo’s hardware stack. In addition, domestic digital platforms such as Go stand to deepen their role as orchestrators of multimodal urban mobility, linking human-driven fleets and driverless vehicles inside a single interface.

For Japan’s smart-city ambitions, the project offers a high-profile test case for integrating autonomous ride-hailing into public transport, congestion management and urban data strategies. One clear takeaway for investors is that Tokyo’s move towards Level 4 robotaxis signals an emerging premium on proven autonomous safety records in global mobility markets. As approvals progress, the next signals to watch will be the detailed operating zones, tariff structures and any expansion plans beyond Tokyo, which will show how fast autonomous ride-hailing can scale across Japan and wider Asia.

Quick answers