comma.ai comma device
Hacker ApprovedRanked 5 of 9 driver assistance systems by recommenders
Adds freeway driver assistance to compatible cars on a low-cost Android-based device; people praise its capability. Common caveat: frequent warning beeps.
Adds freeway driver assistance to compatible cars on a low-cost Android-based device; people praise its capability. Common caveat: frequent warning beeps.
28 people gave an opinion
- recommend it
- 24
- criticize it
- 4
- approval share
- 86%
Recommended in 11 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 24 people recommend itNeeds 10 or more, met.
- 6 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 11 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Capable system on cheap hardware
“you can get a lot of autonomy and intelligence with a $1000 Android device and thirty minutes for installation”
Comment from 9 Sep 2026 in “Growing proof that autonomous cars save lives” “Comma does a surprisingly good job with very minimal hardware”
Comment from 23 Feb 2026 in “Sub-$200 Lidar Could Reshuffle Auto Sensor Economics” Makes long drives easier
“Really incredible piece of tech in a tiny package, and it truly improves your life to have it.”
Comment from 24 Jan 2026 in “Open-source self-driving for 325 car models from 27 brands” “That thing makes driving long distances so much more stomachable.”
Comment from 4 Nov 2025 in “My Truck Desk” “makes driving so much easier”
Comment from 20 Jul 2026 in “Xiaomi-Robotics-1” Seen as better than rival systems
“tiny companies like Comma AI manage to build self driving systems that are in someways better than Teslas”
Comment from 22 Sep 2026 in “Grok 4.7” “isn't self-driving, just really good cruise control (better than Blue cruise, imo)”
Comment from 30 Nov 2025 in “Electric vehicle sales are booming in South America – without Tesla” “it also supports a comma.ai, which is better in a practical sense than FSD”
Comment from 8 May 2026 in “Tesla is recalling its cheaper Cybertruck because the wheels might fall off” Long-time satisfied users
“very happy comma.ai user for many years now”
Comment from 24 Jan 2026 in “Open-source self-driving for 325 car models from 27 brands” “many Rivian customers really love Comma.ai”
Comment from 11 Dec 2025 in “Rivian Unveils Custom Silicon, R2 Lidar Roadmap, and Universal Hands Free”
What people warn about
Each mark is one comment
Frequent beeping and warnings
“comma.ai will not disable the warning. This is a warning that's on all the time.”
Comment from 7 Jul 2026 in “All Cars Sold in the EU Now Require a Camera Aimed at Your Face” “when I have sunglasses on it beeps too much”
Comment from 8 Jul 2026 in “All Cars Sold in the EU Now Require a Camera Aimed at Your Face” Seen as niche or dead end
“George Hotz has done some interesting work, but Comma is far too indie/hacker.”
Comment from 11 Dec 2025 in “Rivian Unveils Custom Silicon, R2 Lidar Roadmap, and Universal Hands Free” “It's a dead end unless they work a deal with someone to be allowed on the bus.”
Comment from 11 Dec 2025 in “Rivian Unveils Custom Silicon, R2 Lidar Roadmap, and Universal Hands Free”
Other driver assistance systems people recommend
The four most recommended other driver assistance systems, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Tesla Full Self-Driving (FSD) | 268 | 618 | 30% | 12 | 3 yrs32 owners | — |
| Tesla FSD | 73 | 88 | 45% | 12 | 2 yrs4 owners | — |
| comma.ai openpilot | 34 | 10 | 77% | 9 | — | Approved |
| Tesla Autopilot | 27 | 148 | 15% | 8 | 2 yrs3 owners | — |
| comma.ai comma deviceThis page | 24 | 4 | 86% | 11 | — | Approved |
What people said
32 of the 36 comments that mention it, newest first. Each links to the original comment.
“after market not quite self driving so it steers and gas/brakes for you”
“tiny companies like Comma AI manage to build self driving systems that are in someways better than Teslas”
“you can get a lot of autonomy and intelligence with a $1000 Android device and thirty minutes for installation”
“looks like a very slick product”
“I find comma.ai’s work pretty fascinating compared to the bigger fish”
“I'm excited for it nevertheless.”
“makes driving so much easier”
“when I have sunglasses on it beeps too much”
“comma.ai will not disable the warning. This is a warning that's on all the time.”
“There's comma.ai waiting to take your order if you have a compatible car.”
“it also supports a comma.ai, which is better in a practical sense than FSD”
“Their solution? They now have 2 CAN buses instead of one.”
“barely-adequate lane keeping system for obsolete cars”
“Comma does a surprisingly good job with very minimal hardware”
“I'm AI-pilled enough to daily-drive comma.ai”
“they're using technology to make drivers more comfortable while still in control”
“very happy comma.ai user for many years now”
“the product as seen as demoed on youtube”
“He has lots of praise for it.”
“Comma is awesome, and more companies should be like them.”
“Really incredible piece of tech in a tiny package, and it truly improves your life to have it.”
“You don't get points for making your own life worse unnecessarily.”
“or installing a Comma in the car”
“It's a dead end unless they work a deal with someone to be allowed on the bus.”
“George Hotz has done some interesting work, but Comma is far too indie/hacker.”
“there are limitations like: above 32mph, cannot resume from stop, cannot take tight corners”
“many Rivian customers really love Comma.ai”
“isn't self-driving, just really good cruise control (better than Blue cruise, imo)”
“lived experience with a comma.ai system shows lidar isn't as critical as we've been lead to believe”
“that's basically already here with comma.ai”
“has the freeway part solved, if you can get your hands on one”
“That thing makes driving long distances so much more stomachable.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.