{"id":"c96dd06c-9a49-4e06-a22a-747ba009fd3f","slug":"lukas-biewald","name":"Lukas Biewald","bioBrief":"Co-founder & CEO of Weights & Biases (now GM under CoreWeave). Previously founded Figure Eight (crowdsourcing/ML training data, acquired by Appen). Angel investor in 7 startups.","priorExits":null,"nationality":"American","verificationPosture":"reported","aliases":[],"sources":[{"url":"https://wandb.ai/site","title":"Lukas Biewald role","sourceName":"Weights & Biases"},{"url":"https://en.wikipedia.org/wiki/Lukas_Biewald","title":"Lukas Biewald","sourceName":"Wikipedia"},{"url":"https://www.clay.com/dossier/weights-biases-ceo","title":"Who is the CEO of Weights & Biases?","sourceName":"Clay"}],"reviewStatus":"reviewed","createdAt":"2026-08-21T21:43:17.950Z","updatedAt":"2026-08-21T22:29:12.642Z","educations":[],"companyRoles":[{"id":"218a1dc8-4073-41b1-97a5-28a5a5e8a4b0","personId":"c96dd06c-9a49-4e06-a22a-747ba009fd3f","companyId":"48c3c7b1-402a-44a6-b8a7-84079896a3fe","role":"ceo","roleTitle":"Co-founder & CEO","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","createdAt":"2026-08-21T21:43:18.731Z","company":{"slug":"weights-and-biases","name":"Weights & Biases"}}],"boardRoles":[],"investorRoles":[],"foundings":[]}