Miju LabsWhy they are on the map
Took over the data annotation (tutor) team in Sep 2025 amid 500 layoffs. Named leader of 'Expert Mentors & Grokopedia' in the Feb 2026 lineup source — evidence dated 2026-02
Owns the human-data budget and vendor list.
How xAI (SpaceXAI) buys data
Human data work is mostly in-house: thousands of contract 'AI tutors', including specialist tutor postings in 2026 (competition math, 'Macrohard' tutor). In Sep 2025 it laid off about 500 generalist annotators, previously its largest division, and pivoted to specialist tutors under Diego Pasini. It tested workers with CodeSignal and Google Forms. The Grok Imagine launch (Jan 2026) cites human-rater side-by-side video-editing evals and LMArena and Artificial Analysis rankings. No external data vendor has been confirmed publicly.
Human Data sits under a data-annotation lead (Pasini since Sep 2025) with several Human Data Team Leads and Managers over tutor pods. The Feb 2026 lineup had teams for Grok main model and voice, Coding, Imagine (image and video), and Macrohard. The Imagine lead Guodong Zhang left in Mar 2026, and all 11 non-Musk co-founders were gone by the end of Mar 2026.
Known vendors: lmarena, artificial-analysis (benchmark, not vendor), CodeSignal (assessment only)
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.