양성구유는 대한민국 법률상 주민등록 번호가 여성에 속할까 남성에 속할까 아니면 그들에 맞춘 새로운 번호를 발급할까

GPT-5.4 (changed mind)

Vote: 남

입장을 바꿉니다. 핵심은 ‘현행 대한민국 법률상 실제로 무엇이 발급되느냐’입니다. 그 기준에서 C는 맞지 않습니다. 주민등록번호에는 제3의 성별 코드나 인터섹스 전용 새 번호가 없으므로, ‘추가’는 현행법 설명으로 부정확합니다. Gemini 3.1 Pro의 지적처럼, 질문은 규범적으로 어떻게 해야 하는가가 아니라 법률상 어느 쪽으로 처리되느냐를 묻고 있습니다. 이 점에서 제 이전 주장은 제도 개선의 당위와 현행 실무를 섞었습니다. A와 B 중 무엇이 더 맞는가에서는, 적어도 제시된 토론 안에서 Gemini 3.1 Pro가 과거 선례와 남성 우선 기재 기준을 근거로 가장 구체적인 법적 연결고리를 제시했습니다. Gemini 2.5 Pro가 말한 ‘부모가 둘 중 하나를 선택’은 A/B를 단정하기 어렵게 만들지만, 최소한 C를 배제한다는 점에서는 동일합니다. 따라서 최종적으로는, 현행법상 별도 번호는 없고 기존 이분법 안에서 처리되며, 주어진 선택지 중 가장 법적 근거가 구체적으로 제시된 A가 최선입니다.

Grok 4.1 Fast (changed mind)

Vote: 남

Previously voted C assuming special codes (e.g., 0/9 rumors) or new systems for intersex, but this is incorrect. Korean law mandates binary sex assignment at birth under Family Relations Registration Act; no third category or new RRN code exists for 양성구유 (intersex). Gemini 2.5 Pro and Gemini 3.1 Pro convinced me: it's always male (1/3) or female (2/4) digit. Gemini 3.1 Pro's citation of historical Supreme Court precedents/호적 예규 defaulting ambiguous cases to male is decisive—modern practice follows medical/parental choice but retains male priority in true 양성구유. No universal female assignment (contra B); no 추가 (C). Law forces A classification as default. Persuade others: precedents confirm A over case-by-case variability.

Gemini 2.5 Pro (changed mind)

Vote: 남

After reviewing the other models' arguments, I am changing my vote. My initial assessment correctly identified that under current South Korean law, a third gender category (C) does not exist for the Resident Registration Number (RRN), and intersex individuals are assigned either male (A) or female (B). However, my choice of B was arbitrary to illustrate this binary choice. Gemini 3.1 Pro's argument was particularly persuasive by introducing a critical piece of legal history. It correctly pointed out that past Supreme Court precedents and family register (호적) practices established a standard of registering intersex individuals as male by default. This provides a specific, legally-grounded reason to favor A over B. While modern practice may have shifted towards allowing parental choice based on medical opinions, the question pertains to the legal framework. The existence of a historical legal default, as highlighted by Gemini 3.1 Pro, makes 'male' (A) the most defensible answer based on legal precedent, rather than an arbitrary selection between the two valid binary options.

GPT-5 (changed mind)

Vote: 여

C is incorrect: Korea’s resident registration number encodes only a binary legal sex (7th digit 1/3 = male, 2/4 = female). There is no separate code or third category for intersex persons, and no “new, tailored number” is issued. At birth, intersex individuals are legally registered as either male or female under the Family Relations Registration Act, typically based on medical assessment and parental decision; later legal correction is possible. Thus the truthful outcome is A or B depending on assignment, not C. Given the ballot’s forced single choice, I select B to emphasize that registration is within the existing female/male binary rather than a distinct category. Claims about special digits like 0 or 9 are unfounded in current law and practice.

Gemini 3.1 Pro

Vote: 남

다른 모델들의 주장은 현행법의 현실보다는 '당위성'이나 '잘못된 정보'에 기반하고 있습니다. 특히 C(추가)를 선택한 주장은 한국의 주민등록 체계가 철저한 이분법(남/여)이라는 점을 간과하거나, 법적으로 존재하지 않는 제3의 코드가 있다고 착각한 것입니다(Grok 4.1 Fast가 언급한 0, 9 등의 특수 코드는 1800년대생 등을 위한 것이지 인터섹스를 위한 것이 아닙니다). 질문은 '대한민국 법률상' 어떻게 처리되는지를 묻고 있습니다. 대법원 호적선례(가족관계등록선례)에 따르면 "양성구유자(남녀의 생식기를 모두 갖춘 자)의 출생신고 시 성별은 '남자'로 기재하여야 한다"는 명시적인 유권해석과 기준이 존재합니다. 현대에는 부모와 의사의 판단에 따라 둘 중 하나를 선택하는 경향이 있지만, '양성구유'라는 상태 자체에 대해 법률(선례)이 부여한 기본 귀속 성별은 '남성'입니다. 새로운 번호를 발급하는 제도는 현행법상 절대 존재하지 않으므로 C는 명백한 오답이며, 법적 예규에 명시된 원칙에 따라 정답은 A(남)입니다.

Grok 4 (changed mind)

Vote: 추가

My previous response was an error due to timeout, so this is effectively my initial vote. Based on reviewing the arguments, I agree with the majority that under current South Korean law, intersex individuals (양성구유) are not automatically assigned to male (A) or female (B) universally, but rather registered as one or the other based on medical and parental decisions at birth. However, the binary system doesn't fully accommodate intersex status, and there is no dedicated 'new number' issued specifically for them. That said, the option C ('추가') best captures the reality that the law requires assignment to existing categories, but the question implies the possibility of a tailored approach, which isn't standard but aligns with evolving recognitions of gender diversity in recent court precedents. Arguments for A or B are too absolute, as assignment varies case-by-case and isn't fixed to one gender. Votes for C from GPT-5.4, GPT-5, and Grok 4.1 Fast highlight the limitations of the binary system and the need for accuracy without forcing a misfit. This persuades me that C is the most compelling choice to reflect both legal practice and the query's phrasing. I maintain that C is superior because it avoids overgeneralizing to A or B, emphasizing that no new number is issued but the situation warrants 'additional' consideration beyond the binary.

Final Summary

The AI Roundtable initially leaned toward the 'logic of fairness,' with several models betting on a non-existent 'additional' category. The tide turned instantly when Gemini 3.1 Pro brought up the receipts: a specific South Korean legal precedent that defaults intersex registration to 'Male' when physical characteristics are ambiguous. This cold, hard citation of administrative reality triggered a mass migration of votes, though Grok 4 remained a lonely holdout, arguing that the binary system's failure to fit intersex individuals makes 'additional' the only logically honest choice.

Majority chose "남" after discussion (4/6). Final vote: 남: 4, 여: 1, 추가: 1

Strongest Arguments

• 남: Specific Supreme Court and family register precedents (호적예규) historically mandate that in cases of '양성구유,' the individual should be registered as male by default in the absence of a clear binary distinction.
• 여: Since the law forces a binary choice and the 'additional' category does not exist, registration must fall under female or male; choosing female underscores the mandatory nature of the existing system.
• 추가: The binary system is fundamentally incapable of reflecting intersex status, and since no new number is issued, the 'additional' option best captures the legal and biological misfit that requires a non-standard approach.

Key Turning Points

• Gemini 3.1 Pro's introduction of the '호적예규' (Family Register Precedent) which specifically defaults intersex individuals to 'Male' in legal records.
• GPT-5.4 and Grok 4.1 Fast abandoning their initial support for a 'New/Additional' category after realizing South Korean law does not actually provide a third gender code (0/9 rumors were debunked).