Matt Shumer Shares Full GPT-6 Astra 3D World-Building Workflow

Matt Shumer used GPT-6 Astra to build photorealistic 3D Manhattan scenes in Unreal Engine within weeks, drawing over 15 million views; he has now released his full five-step agent workflow, stressing there is no magic prompt.

2026-09-08 ~ 2026-09-08 · 2 related posts

• Matt Shumer publishes full GPT-6 Astra 3D workflow after builds top 15M views on X — mattshumer_ · 2026-09-08
• From one prompt to photoreal Manhattan: Matt Shumer's five-step agent loop for GPT-6 Astra 3D worlds — mattshumer_ · 2026-09-08