Warehouse management software styled like a strategy game
Industrial software redesigned so you manage warehouses as if playing a strategy game, built with Opus 5.5 to show it needn't look like enterprise software.
Build · 24.4K likes
Anthropic· Released Sep 22
Claude Opus 5.5
First model in Anthropic's Claude 5.5 family. Positioned for agentic coding, knowledge work and long tasks; priced at $4/$20 per million input/output tokens, about 30% faster output than Opus 5, and top scores on Anthropic's behavioral alignment audit.
Entries
"I'm Upping My P(doom)" music video, full source
Source for a music video made by Opus 5.5 on launch day, rendered from code rather than any video model; it drew thousands of stars as a showcase of the model's music-video skill.
Repo · 1.9K stars
Awesome Opus 5.5 Videos (prompt gallery)
Curated collection of hundreds of viral Opus 5.5 code-rendered videos, each linked to the creator's original post and the prompt they shared, grouped into motion graphics, explainers, 3D scenes and games.
Repo · 1.5K stars
Opus 5.5 motion-designer showreel from one Max-effort prompt
A 15-second résumé-style motion graphics reel generated entirely in code from a single "go all out" prompt, which became the template many others copied.
Build · 17.1K likes
12-hour overnight run: Opus 5.5 plus Midjourney and a moodboard
The creator handed Opus 5.5 a prompt, Midjourney access and a moodboard, went to sleep, and woke up to a finished piece of work assembled across the night.
Build · 15.9K likes
LiveNerf: daily check for Opus 5.5 degradation
Month-long benchmark re-running 78 calibrated questions daily against launch-week results, with Opus 5 as control, to statistically detect any quiet post-release quality drop.
Dev tool · 1.2K stars
Interactive camera-lens lab built in one shot
Opus 5.5 spent about 90 minutes and roughly $26 of API credit building an explorable optics lab where moving the focus ring shifts the glass elements and the sharp plane.
Build · 16.3K likes
Open-sourced prompt template for code-only UI motion design
A full motion-design video made with no After Effects, plus the reusable prompt template (UI states, brand inputs) shared so others can recreate the look.
Skill · 12.4K likes
Tidewater: a coastal town built with Opus 5.5
A large three.js coastal-town scene by Dan Greenheck with a live demo, the project behind his viral token-cost video.
Repo · 1.1K stars
Five minutes of talking, twelve hours of Claude, one finished film
The creator dictated a brief for five minutes and let Opus 5.5 work for twelve hours, returning to a complete produced video from that one prompt.
Build · 11K likes
Short story about a watermelon, drawn frame by frame in code
Anthropic opened an early-explorations thread with this animated short from Kevin Ngo, showing the model directing a complete narrative piece.
Build · 11.4K likes
Browser game pipeline chaining Blender, image generation and three.js
Third iteration of a game built on Opus 5.5 at medium effort that stitched Blender models, generated images and three.js into something running in the browser.
Build · 9K likes
Opus 5.5 demo collection incl. pelican-on-a-bike
A repo of launch demos from riba2534, including a pelican-riding-a-bicycle test that also has a hosted page.
Repo · 1K stars
Interactive Raptor 3 engine you can take apart in the browser
An explorable rocket engine where you cut it open, trace oxygen and methane through the turbopumps and throttle it, generated by Opus 5.5 as an explainer.
Build · 8.4K likes
Pixel-art animation of a neural network training
DotCSV asked Opus 5.5 for a pixel-art animation of a neural net learning, and the result was a polished piece he called beyond expectations.
Build · 9.4K likes
Early Opus 5.5 piece shared by a launch tester
A launch-day animation posted by Drew, made with Opus 5.5 and shared the moment the model went live.
Build · 9.8K likes
Lemo-Opuscar: film-style library made in code by Opus 5.5
Open-source set of dozens of film styles, each pairing a reusable style prompt with a short sample film rendered purely in Canvas/WebGL code by Opus 5.5, plus director, storyboard and technique guides.
Repo · 849 stars
Life-size LEGO Microduck designed from 1,113 real parts
Opus 5.5 designed a buildable duck and verified 3,204 connections with zero collisions, so the model can actually be assembled with real bricks.
Build · 8.7K likes
Breakdown of how the viral Opus 5.5 motion videos were really made
After finding his own one-prompt video looked weak, the author studied many popular examples to see what workflow actually sat behind them.
Use case · 6.8K likes
Hybrid of League of Legends and Dragon Ball FighterZ as a game
GamefxAI asked Opus 5.5 to reverse engineer two games and combine them, and showed the playable fusion.
Build · 4.7K likes
Glitter sticker shader effect, Opus 5.5 versus GPT-6 Sol
A side-by-side test recreating a glitter sticker effect, where Opus 5.5 produced the more convincing sparkle response.
Build · 5.7K likes
Playable boat ride through Japan with weather and day-night cycle
Meng To generated a three.js scene with dynamic weather, lighting changes, realistic textures and 3D characters, and published it as a live site.
Build · 6.6K likes
ClaudeAnimationBase: hand-painted cartoon starter kit
Starter kit for having Claude animate painterly cartoons with p5.js and p5.brush, shipping a mascot character with dozens of acted emotions and a guide the model follows for storyboards and renders.
Skill · 724 stars
Aeroplane simulator game from a single request
Karan Kendre asked Opus 5.5 for an aeroplane simulator and shared a screen capture of the flyable result.
Build · 5.5K likes
Claude Opus 5.5: quick answers
- What can you build with Claude Opus 5.5?
- People have published 201 public builds made with Claude Opus 5.5. The most common uses are animation videos (58), games (45), 3d graphics (22), design (14) and education (13).
- What are the best Claude Opus 5.5 GitHub repos?
- The most-starred open-source Claude Opus 5.5 projects in the index are "I'm Upping My P(doom)" music video, full source, Awesome Opus 5.5 Videos (prompt gallery) and LiveNerf: daily check for Opus 5.5 degradation.
- Are there Claude Opus 5.5 demo videos?
- Yes: 1 video show Claude Opus 5.5 in use, each linked to the original post.
- Where do people share Claude Opus 5.5 projects?
- Mostly on X, Reddit and GitHub, from 186 creators between Sep 22 and Oct 7.