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[ARTICLE · art-125286] src=simonwillison.net ↗ pub= topic=generative-ai verified=true sentiment=↑ positive

.blend URL Viewer

Simon Willison released a browser-based .blend URL Viewer that renders Blender 3D model files, demonstrated with a Pluribus-themed Fabergé egg generated by OpenAI's GPT-6 Astra coding agent in Codex. Willison first produced the egg image using ChatGPT Images 2.5, then pasted it into Codex running GPT-6 Astra (high) with a Blender local skill, which took 17 minutes 51 seconds to build several .blend files now published in his vibe-coded-blender-projects GitHub repository.

read1 min views2 publishedSep 9, 2026
**Tool:** [.blend URL Viewer](https://tools.simonwillison.net/blender-viewer)

I'm continuing to have a lot of fun with GPT-6 Astra and Blender (see [my TIL](https://til.simonwillison.net/llms/blender-coding-agents-macos)).

As a big fan of the Imperial Fabergé Easter eggs I've always thought it would be fun to make some new ones that celebrate popular culture.

Yesterday I decided to try out the new ChatGPT Images 2.5 by running this prompt:

Generate a photo of a faberge egg that's themed after the TV show Pluribus - research first

It gave me this - honestly not bad for a first attempt!

Then, just to see what would happen, I pasted that image into Codex running GPT-6 Astra (high) and prompted:

Use your blender local skill to create a blender model of this faverge egg

(Here's the skill file, which I created like this.)

It churned away for 17m51s and built me several .blend files. I already had this vibe-coded Blender viewing experiment lying around, so I added that to my tools collection and now you can use it to see my Pluribus blender model in your browser:

Tags: 3d, javascript, tools, ai, generative-ai, llms, blender, coding-agents, codex, gpt-6-astra

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