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Personnel: Tom Henighan at Anthropic (Co-founder, Researcher)

Verdictpartial85%
4 checks · 4/13/2026
⚠ Checks disagree: 3 unverifiable, 1 partial

The source confirms Tom Henighan's affiliation with Anthropic and his role as a researcher (evidenced by his authorship on a peer-reviewed research paper). However, the source does not confirm the 'Co-founder' designation or the specific start date of 2021-01. The source only shows he was at Anthropic in 2022 as a researcher. The co-founder claim and exact start date cannot be verified from this source alone, making the record partially confirmed but incomplete.

Our claim

entire record
Role
Co-founder, Researcher
Role Type
career
Start Date
January 2021
Is Founder
Yes
Notes
Co-founded Anthropic; key contributor to Claude development

Source evidence

4 src · 4 checks
unverifiable95%Haiku 4.5 · 4/7/2026

NoteThe source is Anthropic's company values and governance page. While it mentions that Anthropic has 'researchers, engineers, policy experts and operational leaders,' it does not list individual personnel by name. The only named individuals in the source are the Board of Directors (Dario Amodei, Daniela Amodei, Yasmin Razavi, Jay Kreps, Reed Hastings, Chris Liddell) and LTBT Trustees. Tom Henighan is not mentioned anywhere in this excerpt. To verify the claim about Tom Henighan's role, title, and start date, a different source (such as a personnel directory, LinkedIn profile, or press release) would be required.

partial85%Haiku 4.5 · 4/13/2026

NoteThe source confirms Tom Henighan's affiliation with Anthropic and his role as a researcher (evidenced by his authorship on a peer-reviewed research paper). However, the source does not confirm the 'Co-founder' designation or the specific start date of 2021-01. The source only shows he was at Anthropic in 2022 as a researcher. The co-founder claim and exact start date cannot be verified from this source alone, making the record partially confirmed but incomplete.

unverifiable95%Haiku 4.5 · 4/9/2026

NoteThe source text provides a comprehensive Wikipedia article about Anthropic, including a detailed founders section and a 'Notable employees' section. Tom Henighan is not mentioned anywhere in the provided excerpt. While the source does not explicitly state that Tom Henighan is NOT a co-founder or researcher, the absence of his name from both the founders list and the notable employees list—despite the article's apparent comprehensiveness—means the claim cannot be verified from this source. This is unverifiable rather than contradicted because the source does not explicitly deny the claim; it simply does not mention Tom Henighan at all.

unverifiable95%Haiku 4.5 · 4/10/2026

NoteThe source text does not address any of the key claims in the record (person name, organization affiliation, role, or start date). While the source is from Anthropic's website and discusses AI research, it contains no biographical information about Tom Henighan. The absence of information in the source cannot confirm or contradict the personnel record, making this unverifiable based on the provided source material.

Case № 9eXq713FrgFiled 4/13/2026Confidence 85%