# Yana Welinder: Launching a Fashion Brand Solo How to build a fashion brand without engineers using AI - **Source:** [Lenny's Newsletter](https://www.lennysnewsletter.com) - **Published:** 2026-08-17 - **Topic:** [Entrepreneurship](https://brifing.si/c/entrepreneurship) - **Original article:** - **On Brifing:** https://brifing.si/s/542c2e12-90e1-46a9-8866-a0c4dafaeef7 ## Building a Fashion Brand with AI Yana Welinder founded Yana Bana, an AI-powered fashion brand. Without engineers, she went from hand-drawn sketches to runway photos, CAD files for 3D printing, and a Stripe-connected pre-order site. This process clearly demonstrates what today's toolset can achieve. ## The Fashion Prompt Yana uses a detailed specification called the 'fashion prompt.' It covers silhouette, volume, fabric behavior, movement, and sound. This approach ensures consistent and realistic design outputs. ## Using ChatGPT and Codex Yana utilized ChatGPT Images 2.0 and Codex to operate CAD and fashion software without prior learning. These tools accelerated the design process, allowing her to complete a garment from sketch to product photo, runway photo, and influencer shot in a single session. ## Vendor Research and Communication Yana managed vendor research and communication through in-depth research and Superhuman browser usage. This approach enabled her to effectively communicate with suppliers and manage the process smoothly. ## E-Commerce Site Setup Yana built a full e-commerce site with voting, databases, and Stripe integration. This site allows customers to pre-order garments and vote on designs. ## Parallel Testing of Humans and AI Yana is testing human patternmakers and Codex in parallel. This approach allows her to compare the impact of AI in the design process with human contributions. ## AI's Role in the Design Process AI plays a critical role in Yana's design process. Tools like ChatGPT and Codex provide speed and consistency at every stage of design. This offers a significant advantage over traditional methods. ## Future Challenges and Opportunities Yana evaluates future challenges and opportunities as AI's role in fashion design grows. This process highlights how AI can transform the design industry. ## Sources covering this story - https://www.lennysnewsletter.com/p/how-a-solo-founder-used-codex-and — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._