OpenAI: two engineers used GPT-6 Astra to design a working Codex gadget in under a week

OpenAI says two team members, working on it as a side project, had GPT-6 Astra write the requirements and design the enclosure, the circuit board and the firmware for a small device you talk to Codex through, with no direct human edits to the design. A contract manufacturer built prototypes in under a month. OpenAI admits that getting it ready for manufacturing still took several rounds of human review, because Astra didn't consistently allow for the factory's limits and tolerances. It also says its hardware teams' model use has grown 23-fold since February, names Mazda and Chip Ganassi Racing as collaborators, and shows an unreleased internal model scoring 0.875 on its BenchCAD 2.0 test against 0.594 for Astra (@kimmonismus and others jumped on that chart). Fact or hype: partly fact. It's a real, detailed case study, but every number is OpenAI's own, the stronger model isn't available, and the 'no human edits' part stopped at the prototype.

Why it mattersIf you design physical products, it's worth trying ChatGPT or Codex on drawings, CAD clean-up and design reviews now. Don't expect a factory-ready design: budget for an engineer to check tolerances and manufacturability.

Curated by Sara Simeone as part of our human editorial coverage. The original sources are linked below; curation is distinct from a Hype or Fact? assessment.

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How we knowCompany figures are labelled as their own claims; anything we couldn't verify is labelled as a report or a claim.