person
Mike Lewis
Meta FAIR; BART, Llama 2 lead
Researcher at Meta FAIR; co-author of BART (2020), one of the foundational sequence-to-sequence pretraining methods. Lead author of multiple Llama papers; technical lead on Llama 2.
current Research Scientist, Meta AI Research
Strategy positions
Open sourceendorses
Release weights widely; transparency beats closed safetyCo-architect of Meta's open-weight Llama family; argues open foundation models accelerate research and broaden the safety discussion beyond the frontier labs.
“BART pretrains by corrupting text and learning a model to reconstruct the original text. The denoising objective generalises across many language tasks.”
Closest strategy neighbours
by jaccard overlapOther people whose strategy tags overlap with Mike Lewis's. Overlap is on tag identity, not stance; opposites can show up if they reference the same tags.
Record last updated 2026-04-25.