Miju Labs

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P

Patrick Esser

Co-founder · Black Forest Labs

medium confidenceTier A · Talk to firstImage, video & audio modelsimage · video

Why they are on the map

BFL co-founder (latent diffusion/rectified-flow author); FLUX.1 Kontext author. Exact current title not verified. source — evidence dated 2025-06

Needs the data for a model; writes the spec.

How Black Forest Labs buys data

FLUX 3 launch (2026-07-23) reported head-to-head human preference results vs Luma Ray 3.2 (93%), Runway Gen-4.5 (77%) and Grok Imagine Video; raters and methodology not disclosed. Open role 'Data Procurement & Operations Lead' (Freiburg/SF, posted around Jan 2026) will own data vendors, specialist contractors, stock media and licensors, and build 'collection and evaluation systems through internal tools, vendor partnerships'. 'MTS - Post Training' role (2026) covers RLHF/DPO/reward modeling and 'human prefs'. FLUX.1 Kontext (2025-06) introduced crowd-sourced KontextBench.

Flat 'Member of Technical Staff' research org led by founders. Teams visible in hiring: Pretraining, Post Training, VLM, Image/Video Generation, Research Infra. Data procurement/ops is being set up as its own lead role, and no named holder was found.

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.