product updateOpenAI
OpenAI releases prompting playbook for GPT-5.4 frontend design with specific UI/UX guidelines
OpenAI has published a prompting playbook for frontend designers using GPT-5.4 to generate websites and UI designs. The guide establishes hard rules for composition, branding, typography, and layout to prevent generic outputs. Key recommendations include one-composition viewports, expressive typography, full-bleed heroes, and lower reasoning levels for faster, more focused results.