Machine Intelligence Research Institute (MIRI) — Headcount: 42

NoteThe source is the ProPublica Nonprofit Explorer page for MIRI (EIN 58-2565917), which displays IRS Form 990 data. The 2024 Form 990 filing (filed Nov. 7, 2025) is referenced and available for viewing, but the excerpt provided does not include the specific headcount field from that form. The source lists 13 named key employees and officers for 2024 with a '+ View more people' link, indicating additional staff exist, but the total headcount of 42 is not stated in the provided text. To verify the claim of exactly 42 employees, one would need to access the full 2024 Form 990 document (Schedule J or the main form's employee count field), which is linked but not excerpted here. The claim is plausible given the context (MIRI expansion, Form 990 source cited), but the specific number cannot be confirmed from the provided source text.