Make long drives feel easier.
comma 4 is a small windshield device that helps steer compatible cars. Speed and distance control depend on your car. Watch the road and be ready to take over.
comma four, the current device. Photo: comma.ai
Driving help. You stay in charge.
- It steersHelps keep you centered in your lane. Sharp curves may need your help.
- Speed help depends on your carcomma or your car’s cruise control handles speed and following distance.
- You stay in chargeWatch the road and be ready to take over. This is driver assistance, not a self-driving car.
Meet comma four.
A screen, cameras, and a connection to your car. Start by checking your car, then see the parts and setup steps you need.
You get $50 off at comma.ai. CommaGuide gets $50 after a qualifying purchase. Terms apply.
Start with these.
One device. Choose your software.
openpilot is the official software from comma. Community versions add their own features. First check that your chosen version supports your device and exact car.
sunnypilot running on a comma three. Photo: the sunnypilot project.
- openpilotThe official software from comma. Start here if you are not sure.
- sunnypilotA community version with extra settings and detailed documentation.
- FrogPilotA community version with many adjustable options and seasonal themes.
- dragonpilotA long-running community version with a Chinese-language interface.
- BluePilotA sunnypilot-based version focused on Ford cars.
- StarPilotA FrogPilot-based version that started with GM cars.
- OPGMBuilt for GM cars.
- OPKRMade in Korea for Hyundai, Kia, and Genesis cars.
- IQ.PilotBased on stock openpilot, with its own driving modes.
- ZoompilotMazda-focused settings, sunnylink access and an experimental Jetlink branch.
Photos: comma.ai and the sunnypilot project. CommaGuide is an independent guide and is not affiliated with comma.ai.