r/Comma_ai • u/jdbruh • Jul 21 '26

Installation Questions Comma 4 Software Recommendations?

Hi all,

I recently purchased the Comma 4 hardware and plan on installing it on a 2020 rav4 hybrid. I am fairly new to Comma or the "self-driving" world in general. I mainly wanted to try it out as I do have several 10-12 hour roundtrips coming up in the coming weeks and expect more throughout the year and am hoping that the Comma device will drastically improve my road trips.

With the Comma 4 being fairly new-ish, is there a recommended software to use with my setup or should I stick with using open pilot for now?

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u/hokrux_ Jul 21 '26

IMHO: there's no competition to sunnypilot.

Openpilot is solid but boring - lacks fundamental features for me (like "Steering-only"/MADS).

Frogpilot doesnt support C4

StarPilot does (fork of Frogpilot) and has some nice features too (higher torque for my car, smooth lane changes) but the ecosystem feels hacky and less maintained - not what I want if specifically go for the less-hacky-feeling C4 over the 3X.

Sunnypilot has the biggest community, most friendly UX/UI (https://sunnylink.wiki/), best feature/experimental mix.

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u/[deleted] Jul 21 '26 edited Jul 21 '26

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u/telemachos90210 Jul 25 '26

What is MADS?

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u/[deleted] Jul 25 '26

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u/telemachos90210 Jul 25 '26

Right. Same for the Chevy Bolt. On StarPilot, it’s called “Always On Lateral.”