Yana Bana: A Solo Brand Launched with Codex and ChatGPT

Yana Welinder, former product lead, has single-handedly created Yana Bana, a fashion brand described as AI-native. She claims to have completed a full cycle, from sketches to runway photos and CAD files for 3D printing, all the way to a pre-order site linked to Stripe, without the help of engineers. Her method formalizes a "fashion prompt" as a specification and relies on Codex to operate unfamiliar 3D software. She also highlights what remains challenging and compares the contributions of human pattern makers with those of AI.

Yana Welinder Tests Human Pattern Makers and Codex

Yana Welinder is conducting parallel tests between human pattern makers and Codex. A summary also addresses the aspects of the process that remain difficult. She explains how she adjusts the wording of her prompts when the AI does not respond as expected.

The Founder Moves from Sketch to Stripe-Linked Site

The journey described goes from hand-drawn sketches to runway photos and CAD files for 3D printing, without any intervention from engineers. The workflow allows, in a single session, to generate a product photo, a runway image, and an influencer photo. The search for suppliers is conducted from start to finish through thorough research and web navigation, including sending contact emails and using the Superhuman browser. On the commercial side, a complete e-commerce site is built, integrating voting, databases, and Stripe, as well as a pre-order site linked to Stripe. This all fits into an approach where the Yana Bana brand is presented as AI-native and driven by a sole founder.

A Fashion Prompt Serves as Specification and Drives CAD

The approach uses a "fashion prompt" developed as a precise specification encompassing silhouette, volume, fabric dynamics, movements, and sound aspects. One section details the concept of "prompt as specification" and explains how to achieve creations that are both coherent and realistic, outlining the structure of successive prompts and the different phases of design iteration.

On the tools side, Yana Welinder uses Codex and the computer to manipulate CAD and fashion software she had never learned, including creating files in 3D software. A live demonstration shows the generation of a jacket from a prompt in ChatGPT, and a tour of the Yana Bana site is also presented. ChatGPT Images 2.0 is highlighted as superior to other models for fashion design, a point addressed in a comparative section.