Hands-on with GPT-6 Astra 3D: great for cats and buildings, terrible at human figures
葬AI · wechat · 2026-09-11
A hands-on review of GPT-6 Astra's 3D modeling-to-print workflow finds impressive productization but crude underlying 3D ability:
- No perceived leap in base intelligence; the launch story is productization — Blender control for 3D generation and end-to-end 3D printing
- Human figures are a disaster; GPT-6 eventually called Tripo to generate the model, then fixed artifacts one by one. Non-human subjects (a fat cat, buildings) come out well since they decompose into basic geometry
- Computer use complements 3D: the model drove Bambu Studio for slicing and supports, though with frequent disconnects. OpenAI's promo rocket was printed with supports still attached
- The physical-world interface is immature: no official Bambu Lab AI API (only an incomplete community skill), and printer issues like failed dual-color printing are the real bottleneck
The author argues model labs are shifting from doubling down on coding to broadening into physical interaction, citing a16z's new $1.1B Machine Age Fund.
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