Index
Ethan Perez @ Anthropic
Verdictunverifiable95%
2 checks · 9/14/2026⚠ Headline unverifiable — 1 high-relevance source unverifiable, 1 high-relevance source confirmed.
1 → unverifiable; dissent: 1 → 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 checksunverifiable95%Haiku 4.5 · 9/14/2026
NoteRe-check. Previous verdict: unverifiable. Verdict unchanged.
confirmed95%Haiku 4.5 · 5/1/2026
NoteThe source directly confirms all key fields in the record: (1) person is Ethan Perez ✓, (2) org is Anthropic ✓, (3) role is 'adversarial robustness team' lead ✓. The source does not explicitly state a start date of 2023, but the absence of this detail in the source is not a contradiction—it is simply unverified rather than contradicted. The source is Ethan Perez's own professional bio, making it authoritative for his current role and affiliation. All explicitly stated claims match the source.
Case № QJx2989s1fFiled 9/14/2026Confidence 95%