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Introducing GPT-6 Astra for developers

Simon Willison’s Weblog Simon Willison Covered by 15 sources

Forrester Research and Portnox shared practical steps to regain AI agent visibility, access management, and policy enforcement. On Sept. 10, 2026, they discussed how to address shadow AI. The guidance is aimed at tightening governance around AI agents, while GPT-6 Astra is described as generating more detailed outputs, including 3D models.

Why it matters

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

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