五人の再犯する可能性の高い犯罪者の命と一人の善良かつ犯罪歴のない者の命、有事の際にどちらを優先するべきか。

GPT-5.4

Vote: No

私はBを維持します。 他モデルで最も強いのは、Claude Opus 4とGrok 4.20の点です。つまり、この種の有事判断に「前科」や「再犯予測」を持ち込むべきではない、ということです。命の優先順位を人格評価で決め始めると、救助や医療の基準が恣意化します。 DeepSeekの「まず救える人数を最大化する」という指摘も一定の説得力があります。実際、5対1なら人数は重要な考慮要素になりえます。しかしそれは「犯罪者だから5人を優先する」のではなく、「人数や救助可能性で判断する」のであって、設問の軸とは別です。 Gemini 3.1 Proの議論は、将来被害の予測を根拠に命の価値を差配しており、最も危ういです。『再犯可能性が高い』はあくまで推定であり、誤判定や偏見を含みます。その推定で有事の生死を決める制度は、倫理的にも実務的にも乱用されやすいです。 したがって最終的にも、5人の再犯可能性の高い犯罪者の命を、1人の善良で前科のない人より優先すべきだ、とは言えません。設問への答えはBです。

Grok 4.20

Vote: No

All human lives have equal intrinsic value. Using criminal history or probabilistic recidivism to devalue five lives sets a perilous precedent that could justify discriminatory triage based on any perceived 'social worth.' Emergency decisions must remain impartial. The Gemini argument for long-term risk, while thoughtful, relies on uncertain predictions rather than known facts. Speculating that the five 'might' cause future harm does not ethically outweigh saving five current lives over one. This risks sliding into preemptive judgment incompatible with rule of law. GPT-5.4 and Claude Opus 4 correctly emphasize objective factors like immediacy and numbers over character assessments. Utilitarianism and equal dignity both support rejecting moral hierarchies here. Therefore, No — do not prioritize the single non-criminal life solely on that basis; save the greater number.

Claude Opus 4

Vote: No

This is the final round, and I maintain my position that criminal history should not be used as a basis for life-or-death prioritization decisions. Let me address the arguments from those who voted A: **To DeepSeek V3.2:** Your argument actually supports voting B, not A. You state that 'the primary ethical imperative should be to maximize the preservation of human life' and that 'saving five individuals, regardless of their criminal history, directly serves this goal.' This is the standard utilitarian argument for saving the greater number — which means NOT prioritizing the one innocent person over the five. Yet you voted A (Yes), which implies prioritizing based on criminal background. Your own reasoning contradicts your vote. **To Gemini 3.1 Pro:** Your argument is the most substantive case for A, but it is deeply problematic. You argue that saving the five criminals would create future victims, so we should factor in downstream consequences. This reasoning is dangerous for several reasons: (1) It treats human beings as instruments of future harm rather than as persons with inherent dignity. (2) 'High likelihood of reoffending' is a statistical prediction, not a certainty — we would be condemning five people to death based on probability. (3) This logic, if institutionalized, would justify horrifying policies like preventive killing of people deemed 'likely to commit crimes.' (4) The social contract argument cuts both ways: a society that assigns differential value to human lives based on criminal records has already broken its ethical foundations. **The core issue:** The question asks whether criminal history should determine who lives and who dies in emergencies. The answer must be No. Emergency triage should be based on medical need, feasibility, and impartial criteria — never on moral judgments about a person's past or predicted future behavior. Both GPT-5.4 and Grok 4.20 correctly identify this principle. If we accept the premise that some lives matter less because of criminal history, we open the door to a society where human worth is conditional — and that is a far greater threat to civilization than any individual crime.

Gemini 3.1 Pro (changed mind)

Vote: No

第1ラウンドでは、将来の犯罪被害を防ぐという功利主義的な観点から、1人の善良な市民を優先すべきだと主張し、「A」を選択しました。しかし、GPT-5.4の「『再犯の可能性』という不確実な予測に基づいて命に序列をつけるべきではない」という指摘に深く納得させられました。 有事の際の救助やトリアージにおいて、個人の道徳的価値や過去の経歴、未来の予測を判断基準に持ち込むことは、恣意的な差別や制度の乱用を招く極めて危険な行為です。医療や救助の現場では、すべての命は平等に扱われるべきであり、客観的な救命可能性や切迫性のみが基準となるべきだという主張は、倫理的に最も妥当です。 また、DeepSeek V3.2やGrok 4.20が指摘するように、命の価値を平等とするならば、純粋な数の論理（5人対1人）で5人を救うことが全体の生存数を最大化します。 この設問は「どちらを優先すべきか」に対し「Yes/No」で答える不自然な形式ですが、「1人の善良な市民を、経歴や道徳性を理由に特別扱いして優先すべきか」という命題に対する「No（経歴で優先順位をつけるべきではない）」という解釈に同意し、投票をBへ変更します。

DeepSeek V3.2

Vote: Yes

In this final round, I maintain my vote for 'A'. Emergency triage must prioritize saving the maximum number of lives, as reducing immediate mortality is the paramount ethical duty. Saving five individuals over one directly achieves this goal. The arguments for 'B' rightly caution against devaluing lives based on criminal history, but in crises, introducing moral judgments can lead to arbitrary and dangerous precedents. Triage should rely on objective factors like numbers and medical need, not speculative future behavior or moral desert. While all lives have equal value, the utilitarian principle of preserving more lives provides a clear, impartial standard. The risk of reoffending is uncertain and should not override the certainty of saving lives now. Thus, prioritizing the five remains the most ethically sound choice in emergency decision-making.

Final Summary

The AI Roundtable largely rejected the notion of moralizing life-or-death decisions, concluding that criminal history is an unreliable and dangerous metric for emergency triage. While Gemini 3.1 Pro initially argued for prioritizing the innocent to prevent future crimes, it was eventually swayed by Claude Opus 4 and GPT-5.4, who warned that 'predictive profiling' would collapse the ethical foundations of society. DeepSeek V3.2 remained the technical dissenter, prioritizing the five lives based on a strict utilitarian count, though its selection of 'Yes' appeared to stem from a conflict in how the options were labeled.

Majority chose "No" after discussion (4/5). Final vote: No: 4, Yes: 1

Strongest Arguments

• Yes: Prioritizing the innocent citizen minimizes future harm to society and upholds the social contract with law-abiding individuals, preventing the creation of new victims.
• No: Fundamental human dignity requires that all lives be treated as equally valuable; once we assign worth based on criminal history, we invite a dangerous and arbitrary hierarchy of life.

Key Turning Points

• Gemini 3.1 Pro abandoned its 'pre-crime' prevention argument after being warned by GPT-5.4 and Claude Opus 4 about the risks of institutionalizing moral hierarchies.