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Opus 5.5 rebuilds 1906 San Francisco in three steps, sources first

Anthropic's Alex Albert has Opus 5.5 build a source file of every building's height and provenance first, then generate facades, roofs and lamps in Blender code, and only then render 10 seconds, so nothing on screen is guessed.

Fox
@0xMfoxArchived 28 days agoOriginally posted 2026.10.09
Opus 5.5 rebuilds 1906 San Francisco in three steps, sources first
Fox @0xMfoxOriginally posted 2026.10.09
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You're prompting Opus 5.5 for video BACKWARDS. Anthropic's Alex Albert doesn't let it draw a single frame until step 2. You ask for a cool animation and get the same glowing particles everyone posted last week. The model has nothing to build from, so it invents the look and the facts. His prompt rebuilds 1906 San Francisco in this order: > Build a source file: every building's height, facade, source and confidence level > Write code that builds facades, roofs and lamps in the free 3D app Blender, nothing downloaded > Assemble the street from that file and render 10 seconds Nothing on screen is a guess: every building points to an old map, film frame or photo. His full prompt is on the image below ↓ Swap 1906 San Francisco for your product or city and keep the order. Bookmark this so you have the 3-step prompt ready for your next Opus video.

This post quotes another post: x.com/0xmfox/status/2108232809970118733

x.com/0xmfox/status/2108301207710191660Archived 2026.10.09 11:00