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0.38 Second Rubik's Cube Solve

Ben Katz
Demos
YouTube
Cited on HN 4 times, 2018–2024, never outright recommended score 0
Years with an HN recommendation, 2007–2026

Cited as proof that machines solved the cube in under a second years ago, often as the earlier record before newer robots.

Ben Katz's custom robot solves a Rubik's Cube in 0.38 seconds. The description links to the hardware and software write-ups.

“In 2018, this was solved by some guys (I believe one worked for Boston Dynamics) in 0.38s.” (HN, 2024)

4 citations · Demos · partly dated

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@CorpOverreach Sep 2018 Cites it
on HN thread Self-solving Rubik's Cube
Exactly this! The solving algorithm is no big deal at this point. Experienced cubers can solve them in under 10 seconds. There are machines that can solve them in < 1s. [1] Again, the innovation there is the accuracy and precision of the machinery involved. [1] [this video]
Machine solves cube in under a second
@mkhalil Jun 2024 Cites it
on HN thread Mitsubishi robot solves Rubik's Cube in 0.305s
Sorta related: (if this video triggers some brain neurons from the past) In 2018, this was solved by some guys (I believe one worked for Boston Dynamics) in 0.38s. Video: [this video] Hardware Info: [link] Software Info: [link]
2018 0.38s solve with hardware and software details

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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