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Built with Opus 5.5, the site's music is not a playlist: a brand-new track is composed in the browser every few minutes, set against pixel-art cities at night. Made to leave on while working.1.4K saves on X
Endless lofi composed live in the browser over pixel-art citiesArt, video & music@SafaElmali1.6K1121.4K
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Adding 7 + 5 = 12 takes 116 gate calls to Jev, 7.6 seconds and $0.0018, with a compound 84% chance of the right answer. Opus 5.5 then made a Nolan-style video about it.1.1K saves on X
A 4-bit ALU where every NAND gate is an AI model callScience@mustafaakin1.2K471.1K
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DHH had Claude Opus 5.5 do a one-shot translation of the Omarchy screensaver engine (ttfx) from Rust to x86-64 assembler, running up to 17 times faster.629 saves on X
An Omarchy screensaver engine ported Rust to assembly, 17x fasterApps & websites@dhh5K208629
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Jose had Claude Opus recreate a near pixel-perfect Mac OS X 10.2 desktop on a G4 iMac server, with a Finder face that reacts to CPU load, a genie effect, a picture-in-picture of the real desktop and a night sleep mode.360 saves on X
A Mac OS X 10.2 desktop rebuilt as a live server monitorApps & websites@josesaezmerino1.1K87360
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During a health push that took off about 60 pounds, a GoDaddy GM built a personal MCP hub linking Epic MyChart records, Fitbit data, a bedroom AirGradient sensor, the air conditioner, Govee lights and a self-built AI nutrition tracker. It showed how much breathing raised bedroom CO2.343 saves on X
A personal health hub linking medical records, Fitbit and room airEveryday life@AlanShiflett25410343
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The creator directed Claude Opus 5.5 in Claude Code, which planned 211 shots from their script, wrote a custom 2D animation engine, cast 11 ElevenLabs voices for 70 lines of Arabic dub and built the mixer, subtitles and render pipeline. 300+ generated images, 16 music cues.64 saves on X
An 8½-minute Arabic-dubbed anime pilot produced in about 14 hoursArt, video & music@sbalhatlani73864
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Economics professor Luis Garicano had Claude produce a 14-minute history of economic thought since Aristotle, using a favourite textbook, Blaug's Economic Theory in Retrospect, as the source.3.7K saves on X
Claude built a history of economic thought overnightLearning@lugaricano2.1K3633.7K
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Nigel Hungerford-Symes, who leads the PCB design software TraceMaker, had Claude Opus 5.5 design a circuit board from a prompt and sent it to JLCPCB for fabrication and assembly. The assembled board works; what it does is left for readers to guess.144 saves on X
A PCB designed by Opus 5.5 from a prompt, fabricated and workingRobots & gadgets@VectorCrossProd20715144
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Brater, a 19-year-old Roblox scripter and builder, asked Claude Opus 5.5 for an asymmetrical multiplayer game and got it in one shot, built from nothing but Roblox's own toolbox assets. They were struck by the level of detail and rated it well ahead of Fable's attempt.52 saves on X
A Roblox asymmetrical game one-shotted using only the toolboxGames@BraterRBLX3234752
After ten doctors missed the diagnosis, Gabe Greenberg used ChatGPT to work out that four years of pain when sitting came from hamstring tendinosis, a tendon 40 to 50 percent diseased after earlier hip surgeries, and to reach the right doctor. The post marks their eighth surgery.12 saves on X
Four years of nerve pain traced to a tendon ten doctors had missedEveryday life@gabegreenberg108312