Joël Hainzl

Palo Alto. From Graz.

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hainzljoel[at]gmail[dot]com

Joël Hainzl, black and white headshot, smiling in round glasses and a dark crew neck

Highlights

The story, newest first

  1. @JoelHainzl

    Palo Alto, 2026

    Fellows working at long white desks under chandeliers in the main hall of the AI hacker house in Palo Alto, 2026
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  2. Coauthored a Fermisense study: 9B model beat Claude Fable 5 at 1/68th the cost

  3. Won a VW Jetta in Warsaw at Project Europe with ElevenLabs

  4. First product hire at BEO

  5. CDTM, Class of Spring 2025

    CDTM Class of Spring 2025 group photo, around thirty students in navy CDTM shirts in front of a wooden chapel

  6. Dropped out of TUM to launch the DACH office of Fortino Capital as first hire

  7. Entrepreneur in Residence at Tacto, backed by Sequoia and Index

    Joël Hainzl, right, taking a selfie with a Tacto colleague in the Tacto office in Munich

  8. Won the MindsDB x OpenBB FinTech AI Hackathon in San Francisco

    Joël Hainzl, right, with three fellow winners in front of the MindsDB stage wall at the MindsDB hackathon in San Francisco

  9. Employee #6 at Dex (YC), San Francisco

    Joël Hainzl, left, with Dex founder and CEO Kevin Sun in front of the Salesforce Tower, San Francisco

  10. Exchange semester at USC

  11. Ranked 1st of 2,961 at WU Vienna, finished a year early

  12. Worked on set at Big Sky, London's biggest photo studio: Dua Lipa, Max Verstappen, Naomi Campbell

    Joël Hainzl with long hair standing in a white cyclorama studio at Big Sky Studios in London beneath a large softbox and an HMI lamp

  13. Fashion weeks: Milan and London

  14. Modelled for Vogue Italia

    Joël Hainzl with long hair in a bun walking down a cobbled street next to a woman in a feather coat, black and white

  15. Selected work

    • Runway finale at an evening outdoor fashion show, a long line of models in leather and shearling coats walking toward the camera
    • Dancer in a black leotard balancing on one leg on a brick wall at dusk, the London skyline with the Shard and Tower Bridge behind her
    • Young man in aviator glasses and an orange hoodie against an orange wall, head turned over his shoulder, studio portrait
    • Models walking a runway at a fashion show, the lead model in a long printed gown with teased hair
    • Black and white studio portrait of a young man in a pinstripe shirt, finger resting on his nose, looking off to the side
    • Two women in street style looks on a city plaza, one in gold with cat eye sunglasses, the other in a pink wig and a long blue coat
    • Model in wide floral trousers, a brown half blazer and a floral blouse, hands on hips, lit against a blue wall
    • Blonde model in narrow black sunglasses and sheer tulle sleeves, lit in pink and yellow against a dark background
    • Woman in a long white skirt and dark top standing on a mound at sunset, palm trees silhouetted against a golden sky

  16. Financed photography school as bike courier (record: 43 orders a day, old one 28) and Airbnb Superhost

  17. Completed Fotoakademie Graz

  18. Classical dancer, opened the Opernredoute Graz

    Opening of the Opernredoute ball in the Graz Opera house, debutante pairs crossing the parquet under the chandeliers, Joël Hainzl at the front left

  19. Gifted program for violin at KUG: university classes at 11, alongside 19 year olds

  20. Won competitions on violin, piano, harp and hackbrett

    Joël Hainzl as a boy playing violin in front of a grand piano, his hackbrett and its hammers in the foreground, newspaper photo

  21. Supported my family playing music on the street from age 6

    Joël Hainzl as a young boy with curly blond hair playing violin in a shopping arcade in Graz