Dario Butnariu

Based in Vienna,
working remotely

AI designer
Agents, voice, interfaces

I design how AI products
talk, wait and say no.

Head scan by Lee Perry-Smith (Infinite-Realities), CC BY 3.0

About me

I'm an AI designer in Vienna, currently interning at the City of Vienna, where my work focuses on product development.

I use agentic AI tools to simplify our workflows, which lets us take products from idea to release faster without lowering the quality. I'm always open to questions or enquiries.

Manifesto

Every product with a model inside is a conversation. A prompt is an interface. A pause is an interface. A refusal is an interface.

Most of AI design happens in places nobody screenshots: the second before an answer, the sentence after a mistake, the moment an agent decides to ask instead of act. I design those places.

Not to make machines feel human, but to make them behave: clearly, briefly, honestly. Good AI design says less, waits longer, and knows when it doesn't know.

Focus

  • Agents
  • Voice
  • Prompting
  • Interfaces
  • Refusals
  • Generative identity
  • Prototyping
  • Research

Currently

Intern, product development
City of Vienna | 2026

Ways to work together

  • Design sprint, one AI feature1 wk
  • Assistant behaviour audit2 wk
  • Prototype on a live model3 wk
  • Voice and tone system4–6 wk