AI Product Studio · Tokyo
We build AI tools
that respect your craft
Golden Corpus is an independent software studio creating focused, opinionated AI products for people who care about how they communicate.
Products
Focused tools, real results
Each product solves one problem exceptionally well. No bloated suites, no feature creep — just sharp tools that do what they promise.
MyWritingTwin
Your voice, at scale
AI Writing Profiles that capture your unique style. Write with any AI tool and still sound like you.
FluxDiagram
Diagrams that move
Generate animated, embeddable diagrams from natural language. Built for presentations that stand out.
Calendar Studio
Print-ready calendars, code-driven
Design beautiful wall calendars with AI-generated artwork. From config to PDF, fully automated.
About
An independent studio
with a clear thesis
Golden Corpus is a solo-founder software studio based in Tokyo, Japan. We believe AI should amplify human expression — not replace it.
Our products are built for professionals who refuse to choose between speed and authenticity. Writers who want to scale without losing their voice. Teams who want clarity without compromising on craft.
No venture funding. No growth-at-all-costs. Just carefully engineered tools, shipped by someone who uses them every day.