Sep 21 to Sep 27, 2026

Open-source tooling that lets an agent design LEGO models in LDraw format, built with Opus 5.5 and discussed on Hacker News.

GMI Cloud reported Opus 5.5 produced the scene in about one twelfth of the time Opus 5 needed.

Opus 5.5 wrote and performed a rap about how it works, with all sound and visuals generated by its custom JavaScript.

Seve compared models asked to make a Bluetooth speaker in tscircuit, showing the Opus 5.5 result.

A Three.js and TSL scene in which architecture advances from line drawing to massing, detail and final build.

FluidInference ported Laya to CoreML with 99.5% of ops running on the ANE and benchmarked it at 3.7 ms per decision on an M5 Pro.

Riley Goodside prompted the model to make a film of its own experience using any tools.

Opus 5.5 turned New Zealand trip pictures into painterly images, all computed in code.

Higgsfield showed a Blender train modelled by Opus 5.5 down to every interior seat.

A 10-second procedural render took 35 minutes and about $13 for Opus 5.5, in a head-to-head with a timelapse of the build.

Workflow breakdown pairing Opus 5.5 for prompting with Seedance 2.5 for video generation, with the prompts shared in a thread.

Another creator ran the same résumé showreel prompt on Opus 5.5 at max effort and posted the result.

Matt Shumer left Opus 5.5 iterating on a New York City game for nearly a day while it kept improving; players can join.

A Japanese-language video explaining stochastic differential equations, made end to end with Opus 5.5.

Given zero direction, the model spent about five hours and 697M tokens making an intro with all pixels and sound from one file.

BridgeMind showcased a complete video where every visual and sound element came from code the model wrote.

A test where the model fed a dancer's per-frame skeleton into After Effects to animate text, light and camera.

A PS2-era dream game with combos, dodges and Musou attacks, built with Opus 5.5 ultracode.

From one prompt Claude Code produced name, logo, UI, animation, soundtrack and sound effects, and the author open-sourced it.

Opus 5.5 claimed pixel-perfect visual understanding, then made a short story about a raindrop.

Theo praised Opus 5.5 for fish animation, control feel and a full gameplay loop in the FishSlop test.

A Chinese author published the Claude Code prompt and the resulting video that explains attention and the maths for high-school viewers.

Reflections of stars hatch into 22 small fish, all tiles drawn and animated by code with no image files.