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Claude Opus 5.5 built it from scratch in JavaScript: a gate-level machine, an operating system on top and games running on that OS. It is a real computer rather than a mockup, and it runs from a public link.913 saves on X
A working computer from 277,000 logic gates, with an OS and gamesApps & websites@mattshumer_1.8K168913
0:34
Claude Opus 5.5 built it to explain how a rocket engine works. Cut it open, follow the oxygen and methane through both turbopumps, then throttle it and watch the shock diamonds move.5.1K saves on X
A Raptor 3 rocket engine you can take apart in the browserLearning@konstantinsaifo8.4K8365.1K
Brett Caughran, a hedge-fund veteran who now trains analysts, built a Claude Opus 5.5 skill that produces a from-scratch model in one go. The Micron ($MU) output matched how a junior analyst would build it, down to formatting, after a few turns of tuning.3.5K saves on X
A one-shot Micron financial model indistinguishable from an analyst'sWork@FundamentEdge3.4K2313.5K
1:43
Danny Limanseta's kids described the game they wanted and Opus 5.5 built it: an open world with a paintbrush weapon whose four colours attack differently, three dungeon puzzles, 30+ enemies, a boss and an unlockable flying brush.3.1K saves on X
Vibe-coding an open-world game with the kids on a SaturdayGames@DannyLimanseta4.7K3083.1K
0:33
Claude Code with Opus 5.5 worked for about 8 hours, inventing a fake calendar app along with its name, logo, UI, animations, soundtrack and sound effects. The repo is open source.1.4K saves on X
A launch video where every frame and sound is code, from one promptArt, video & music@LexnLin1.4K421.4K
11:10
Made in UE5, it has dinosaur taming, mounting and riding, combat, weapons and creature AI, all built by Claude Opus 5.5, which also rigged and animated the dinosaurs in Blender.433 saves on X
An ARK-style dinosaur survival game built in 24 hoursGames@smart_poly86363433
0:46
Alex Lieberman, founder of Morning Brew, gave Claude Opus 5.5 a 68-word prompt. It ran for 1 hour 25 minutes and 550,000 tokens, and the replica has a moving steering wheel, wheels, windshield, doors, folding top and engine cover, plus pieces to buy.377 saves on X
A LEGO Ford Model T designed with instructions and a parts listRobots & gadgets@businessbarista60730377
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Jane and team built MyFixam, a marketplace to find, book and pay verified artisans, inspired by Jane's mother, a tailor in Nigeria for 30 years. It reached the top 3 of 1,400 projects and won $100,000 at the Build with Gemini XPRIZE.362 saves on X
An app to book verified artisans won $100,000 at an XPRIZEApps & websites@mssjaney3.8K426362
0:43Claude Opus 5.5 built it to explain how fusion works. Drag the plasma from 15 million °C, the heat of the Sun's core, up to 150 million and watch a city light up.174 saves on X
A fusion reactor you can take apart in your browserLearning@konstantinsaifo32026174
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A silent edit went into Codex and the agent designed original sound effects to fit it, with no DAW and no third-party samples. GPT-6 Astra/Sol did the work, and the prompt for building the sound pack is shared.956 saves on X
Sound design for a muted video, made by a coding agent without a DAWArt, video & music@AmirMushich66739956
0:47
Opus 5.5 turned a creative director's own Midjourney images into a single animation, with music from Suno. An earlier attempt at the same idea in After Effects crashed the project.366 saves on X
More than 1,000 Midjourney images animated into one motion pieceArt, video & music@ciguleva73018366