Miju Labs

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J

John Joon Young Chung

Research Scientist · Midjourney

high confidenceTier A · Talk to firstImage, video & audio modelstext · image · multimodal

Why they are on the map

Midjourney research scientist on 'aesthetic AI models'. Lead author of LiteraryTaste (a paid pairwise taste dataset) and of the diversity-DPO work. source — evidence dated 2025-11

Shapes what 'good data' means.

How Midjourney buys data

Personalization (V7, April 2025) trains on users' own image rankings, which gives Midjourney large first-party preference data. Its research group (Chung, Kreminski et al.) built LiteraryTaste (2025-11) by paying 60 Upwork annotators $100 each for pairwise creative-writing taste labels, and published diversity-aware DPO for creative writing (2025-03). No public contracts with commercial human-data vendors. The careers board (2026) lists only Product, Infrastructure and Medical roles, none for data.

Very lean org run by founder David Holz (~40 to ~160 staff by different 2025 estimates). A small research group works on creative AI and aesthetics (storytelling, taste, personalization). Also has hardware and Midjourney Medical divisions.

Known vendors: Upwork (research annotator recruitment)

Full dossier pending

This person was mapped in pass 1. Career, what they have said on the record, interviews, connections, why they matter to us and how to reach them are added in pass 2, which starts with tier A.