Personnel: Ethan Perez at Anthropic (Adversarial Robustness Team Lead)
The source text is Ethan Perez's own professional bio/website, which explicitly states he leads the adversarial robustness team at Anthropic. This directly confirms all three key fields: person (Ethan Perez), org (Anthropic), and role (Adversarial Robustness Team Lead). The numerous 2024-2025 research papers listed also confirm his current affiliation with Anthropic. The startDate of 2023 cannot be verified from this source (the bio does not provide a start date), but the current role and organization are clearly confirmed.
Our claim
entire record- Person
- Ethan Perez
- Role
- Adversarial Robustness Team Lead
- Role Type
- career
- Start Date
- 2023
- Is Founder
- No
- Source
- https://ethanperez.net/
- Notes
- Works on red-teaming, model evaluation, and safety research
Source evidence
2 src · 2 checksNoteThe source text is Anthropic's public-facing homepage with news and product announcements. It contains no information about personnel, staff members, or researchers by name. While the source confirms Anthropic exists as an organization, it does not address any of the specific claims about Ethan Perez (person), his role as a Researcher, or his start date of 2023. This type of personnel detail would not typically appear on a company's public homepage and therefore cannot be verified or contradicted by this source.
NoteThe source text is Ethan Perez's own professional bio/website, which explicitly states he leads the adversarial robustness team at Anthropic. This directly confirms all three key fields: person (Ethan Perez), org (Anthropic), and role (Adversarial Robustness Team Lead). The numerous 2024-2025 research papers listed also confirm his current affiliation with Anthropic. The startDate of 2023 cannot be verified from this source (the bio does not provide a start date), but the current role and organization are clearly confirmed.