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Angle-based steering is finally working on Gen 1 Rivians with Comma and it’s a pretty big step up. I put together a video breaking down angle vs torque steering, showing real-world driving, and covering some big updates like Uncle Tony’s latest fork and Gen 2 support getting merged into...

Harnesses aren’t out yet, but I’d expect them to start showing up on the Comma site soon. Merged PR here if you want to check it out: https://github.com/commaai/opendbc/pull/3227

I recently did something people have been asking me about and I’ve been curious about for a while myself. I figured the community here might find it interesting. I tested Comma running Sunnypilot while towing our Winnebago travel trailer with my 2022 Rivian R1T to see how well the system...

Which ADAS drives better—Tesla or Comma? In this real-world comparison, my wife and I each take the wheel—but in each other’s cars. She drives my 2022 Rivian R1T equipped with a Comma3X running Sunnypilot (a fork of Openpilot), and I drive her 2023 Tesla Model Y using Tesla’s Enhanced Autopilot...

As of the end of August 2025, here’s where things stand with Openpilot on first-generation Rivians. We recently tested it on our 2022 Rivian R1T running a Comma 3X, the Longitudinal Upgrade Kit, and Sunnypilot. In our latest video, we break down how it’s performing right now — what works...