Humanity Unfolds
Social networksMeta
The social technology and AI company behind Facebook, Instagram, WhatsApp, Llama, Meta AI and Muse.
At a glance
- Founded
- 2004 · Facebook AI Research established 2013
- Headquarters
- Menlo Park, US
- Category
- Social networks · AI models · personal agents
- Employees
- 78,865 · December 31, 2025
Company-wide employees across Meta, not an AI-team count. Historical disclosure; staffing may have changed.
Founders in the archive
On the timeline
2004-02-04TheFacebook launches at Harvard2006-09-05Facebook launches News Feed2012-04-09Facebook announces its Instagram acquisition agreement2014-02-19Facebook announces its WhatsApp acquisition agreement2015-09-14Facebook opens GraphQL to developers
All 22 entries +
2017PyTorch emerges2019-07-24FTC announces Facebook’s $5B privacy settlement2020-05Retrieval-augmented generation2021-10-28Facebook introduces the Meta company brand2023-02-24LLaMA opens a research path2023-04-05Segment Anything2023-07-18Llama 22024-04-18Llama 32024-07-23Llama 3.1 includes a 405B model2024-09-25Llama 3.2 adds vision and edge models2024-12-06Llama 3.32025-04-05Llama 4 Scout and Maverick2025-06-12Meta takes a minority stake in Scale AI2025-06-30Alexandr Wang leads Meta Superintelligence Labs2025-09-04Trump gathers technology and AI leaders2026-09-08Meta introduces Muse2026-10-12Meta releases Muse Wonder + Muse Wonder Full