OpenAI has released a Product Design plugin for Codex that takes a team from rough concept to shareable interactive prototype inside a single tool.
The plugin installs directly into Codex and adds three concrete capabilities: exploring design directions, building prototypes, and iterating on them fast enough to put in front of stakeholders for real feedback. No separate prototyping tool, no export step, no context switch.
The full walkthrough at openai.com shows the actual workflow, not just the pitch. If your team still moves designs through Figma, Slack threads, and handoff docs before a developer touches anything, this is worth reading in full.
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