---
title: Introducing GPT-6 Astra for developers
link: https://simonwillison.net/2026/Sep/5/introducing-gpt-6-astra-for-developers/
source: simonwillison-net
published: 2026-09-05T23:27:48Z
updated: 2026-09-05T23:27:48Z
first_seen: 2026-09-08T10:17:10.166315Z
labels:
- ai
- generative-ai
- gpt-6-astra
- llms
- openai
- pelican-riding-a-bicycle
summary: 'Introducing GPT-6 Astra for developers Blink and you''ll miss it, but there''s a familiar creature at 1m59s: Across the board, Astra has more attention to detail, better understanding of the user''s prompt, and can build more sophisticated outputs. In particular, it excels at building 3D models. I''ve seen it make incredible renderings of gardens, shipyards, animals, cityscapes, even Dyson spheres. Astra really does believe in putting a red neckerchief on a pelican riding a bicycle. Via Hacker News comment Tags: ai, openai, generative-ai, llms, pelican-riding-a-bicycle, gpt-6-astra'
content: extracted
html: 2026-09-05-introducing-gpt-6-astra-for-developers.html
preview:
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  width: 256
  height: 145
  alt: astra-video-pelican.webp
  color: '#9aa8af'
images:
- source: https://static.simonwillison.net/static/2026-09-05/astra-video-pelican.webp
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---

**[Introducing GPT-6 Astra for developers](https://www.youtube.com/watch?v=bOC3DisEOfg)** ([via](https://news.ycombinator.com/item?id=49554643#49575117 "Hacker News comment")) Blink and you'll miss it, but there's a familiar creature at [1m59s](https://www.youtube.com/watch?v=bOC3DisEOfg&t=119):

> Across the board, Astra has more attention to detail, better understanding of the user's prompt, and can build more sophisticated outputs. In particular, it excels at building 3D models. I've seen it make incredible renderings of gardens, shipyards, **animals**, cityscapes, even Dyson spheres.

![astra-video-pelican.webp](https://static.simonwillison.net/static/2026-09-05/astra-video-pelican.webp)

Astra [really](https://simonwillison.net/2026/Sep/5/blender-coding-agents-macos/) does [believe](https://simonwillison.net/2026/Sep/4/astra-pelicans/) in putting a red neckerchief on a pelican riding a bicycle.