AI lacks taste. Good design separates craft from slop.

Johann Sebastian is an opinionated product designer helping visionary product teams find their design language.

At MUTABOR, Germany's largest independent design agency, he helped build "MUTABOR.AI" – born from a simple frustration: agencies spend months crafting a brand's visual identity, only for it to be diluted by generic stock imagery. The generative brand imagery tool addressed this at scale, making industry headlines and picking up multiple awards.

For his 2026 master's thesis, he brought a more playful touch to everyday reflection with "aura", an AI-powered journaling app – graduating with top grades.