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Personnel·5U6aeoA-Mw·Record·Organization

Personnel: Holden Karnofsky at Anthropic (Member of Technical Staff)

Verdictconfirmed95%
2 checks · 4/13/2026
⚠ Checks disagree: 1 confirmed, 1 unverifiable

All key fields in the record are confirmed by the source text: (1) Person: 'Holden Karnofsky' is correctly named; (2) Organization: 'Anthropic' is correct; (3) Role: 'Member of Technical Staff' matches the source's description of his title as 'a member of the technical staff'; (4) Start Date: The article dated February 13, 2025 states he 'joined Anthropic last month,' which corresponds to January 2025 (2025-01). The source explicitly confirms all these details through both the company spokesperson and the article's reporting.

Our claim

entire record
Role
Member of Technical Staff
Role Type
career
Start Date
January 2025
Is Founder
No
Notes
Joined Anthropic in early 2025; works on responsible scaling policy

Source evidence

2 src · 2 checks
confirmed95%Haiku 4.5 · 4/13/2026

NoteAll key fields in the record are confirmed by the source text: (1) Person: 'Holden Karnofsky' is correctly named; (2) Organization: 'Anthropic' is correct; (3) Role: 'Member of Technical Staff' matches the source's description of his title as 'a member of the technical staff'; (4) Start Date: The article dated February 13, 2025 states he 'joined Anthropic last month,' which corresponds to January 2025 (2025-01). The source explicitly confirms all these details through both the company spokesperson and the article's reporting.

unverifiable95%Haiku 4.5 · 4/9/2026

NoteThe source text provided is an excerpt from Anthropic's public website homepage featuring news, product announcements, and company information. It contains no personnel records, staff listings, or any mention of Holden Karnofsky. While the source is from Anthropic's domain, it does not address the specific claim about this individual's employment, role, or start date. To verify this personnel record, a source that actually lists staff members or contains biographical information would be required. The absence of information in this particular source does not contradict the claim—it simply does not address it.

Case № 5U6aeoA-MwFiled 4/13/2026Confidence 95%