As of: 2026-10-10 14:45 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/p/x-solvaix-2107548992640880755/

# “CLAUDE SONNET 5.5 BUILT A 40 FLOOR TOWER WITH 8,934 PARTS IN 15 MINUTES.”

Solvaix (@Solvaix), X, 2026-10-06.
Source: https://x.com/Solvaix/status/2107548992640880755

## Archived text

> CLAUDE SONNET 5.5 BUILT A 40 FLOOR TOWER WITH 8,934 PARTS IN 15 MINUTES.
> 
> One HTML file, 50 KB. It opens in a browser tab and plays 68 seconds of construction: pit, core, frame, pipes and ducts, facade, roof, and the cranes get taken down at the end.
> 
> What's in it:
> 40 floors above ground plus 2 basements, 144 m tall
> 928 columns, 2,178 beams, 2,576 facade panels, 996 sprinklers
> Two tower cranes that climb with the building, plus a hoist on the facade
> 
> It's a visual. The build sequence is made up and the geometry is simplified, so nothing here is calculated.
> 
> Where it's useful:
> Showing a client how their building will go up, in a link they can open on a phone
> A visual for a tender or a pitch that stands out next to other people's PDFs
> Presenting a building that doesn't exist yet to investors or buyers
> 
> With a real model and a real schedule behind it, the same page can show an actual project. And it doesn't stop at buildings. Give Claude real plans, visuals and project data for whatever you need to present, and it can pack them into a 3D scene in minutes.
> 
> Where this is going: Claude can already drive Fusion, Revit, AutoCAD and other programs through connectors. My guess is that every modeling program gets a chat built in next. You open it, describe what you need and get drawings, and starting from a blank sheet starts to look weird.
> 
> Sounds great for speed. But would you live in a building an AI designed?
> 
> > Quoting @Solvaix:

Archived 2026-10-10 via fxtwitter (unofficial).
Counts: 13,398 views, 248 likes, 39 reposts, 9 replies (at fetch time)
Media: https://video.twimg.com/amplify_video/2107548579329925120/vid/avc1/2560x1374/3qU2hXuHbqxcQfTP.mp4?tag=29

## Cited in

- Video: [Illustrative tower construction](https://postcutoff.com/v/solvaix-sonnet-5-5-tower-construction-x/)