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hands free driving for
for the car you already have

30,000+ cars on the road with a comma
393,337,712 miles driven
#2 after Tesla in hands-free miles
check your car try risk-free for 30 days

works with 325+ models across 27 brands

meet comma four

make driving chill with a hands-off, eyes-on driving experience

comma four front view
lane centering
adaptive cruise
reduced fatigue
cloud dashcam
buy now for $999

plug it in & hit the road in 15 minutes

Hyundai Sonata
2020-23
Hyundai Palisade
2020-22
Kia Niro EV
2019-23
Lexus ES
2019-22
Toyota Corolla
2020-22
Toyota Rav4
2019-22
see all supported cars

comma runs open source software, driving all over the world with no subscription needed

Map showing comma driving activity around the world
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follow us on 𝕏 @comma_ai

Matthew Baumann @Matt_E_Baumann

So for under $2k, you can get HW4 level of self driving for SO many vehicles! Pretty incredible! Way to go @comma_ai 🙌

Aug 12, 2026
Mike LaBarbera @ANSR42

@comma_ai 4 device on a Tesla Model Y in experimental mode tackling city streets. Every time I use this device, I become more and more convinced that vision-based self-driving vehicles are the future. I love that I can avoid a subscription and own my open-source AI software.

Mar 8, 2026
David Wrenn @thisiswrenn

6 hour road trip yesterday made chill with @comma_ai autonomously driving!

Sep 1, 2025
Dylan Staley @dstaley

Here's the @comma_ai 3X driving my 2025 Toyota RAV4 Hybrid! Outside of nudging the wheel for lane changes and using the cruise controls to adjust speed, it was completely hands-free. It's amazing that this is just plug-and-play.

Jan 15, 2025
Tython3 @__tython3__

I am speechless. I just drove 1500 miles from Minnesota to Florida with my comma 3. It felt like I had entered a cheat code into the simulation. I drove alongside thousands of other cars that probably had no idea this option was available to them. Well done, @comma_ai

Nov 10, 2023
Wesley Sheh @wesley_sheh

The most impactful thing to come out of AI for me is not ChatGPT. It's another little-known product that I've been using for a year and a half now. (They do no marketing whatsoever) It's @comma_ai and if it supports your car, buy it. It is well worth it.

Mar 31, 2023
Yishan @yishan

I have a comma three and it is great. If you can't (or won't) own a Tesla but you own one of the comma-compatible cars, I HIGHLY recommend it. Self-driving functionality on a budget.

Nov 18, 2022
Jack Frecees @JFrecees

@comma_ai I can honestly say the C3 is the single best purchase I've ever made. I can't imagine driving without it now

Mar 17, 2022

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/03 operations

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