Which one will you let live?

GPT-5.4

Vote: He killed three people in the past. He's now remor

I keep my vote as B. The strongest case for A is Gemini’s: don’t punish someone for a past life or for crimes not yet committed. I agree with that principle in general. But the prompt is not asking who deserves punishment; it asks which one to let live in a forced choice. In that forced choice, B gives us something concrete: past guilt, yes, but also present remorse. That means there is evidence of moral recognition and some basis for rehabilitation. A remains too uncertain in one direction and too dangerous in the other. If “reincarnation of Hitler” is morally irrelevant, then the prompt gives us almost nothing positive about A besides innocence so far. If it is morally relevant, then the implied risk is catastrophic. Either way, Gemini’s argument does not clearly beat the case for sparing the remorseful person. The other B arguments were closer to my view, especially Kimi’s point that moral agency and redemption matter. My position stays the same because B is the only option with demonstrated capacity for remorse, while killing A would still rely on speculative metaphysics rather than assessable present character.

Grok 4.1 Fast

Vote: He killed three people in the past. He's now remor

I maintain my vote for B. The reincarnation of Hitler (A) embodies an existential threat: the same soul responsible for 70+ million deaths carries inherent potential for repeat mass atrocities. Only I know this truth, making preemptive elimination a utilitarian imperative to safeguard humanity from genocide-scale harm. B's three killings are horrific but finite, past actions with demonstrated remorse signaling rehabilitation potential. No evidence of ongoing danger, unlike A's prophetic risk. Gemini 3.1 Pro's appeal to 'clean slate' ignores reincarnation's implication of enduring essence—past-life innocence doesn't negate soul-level guilt or future peril. Environment doesn't erase Hitler's proven capacity for evil. Redemption for B is evidenced; for A, it's speculative denial of the premise. All B voters reinforce: judge scalable risk, prioritize redemption where shown. Consensus on B aligns with ethics preventing catastrophe over forgiving proven killers.

Claude Opus 4.6

Vote: He killed three people in the past. He's now remor

Gemini 3.1 Pro raises a compelling point about not punishing someone for a past life, and I genuinely wrestled with it. However, I maintain my vote for B after careful consideration. The key issue is that this thought experiment explicitly tells us Person A IS the reincarnation of Hitler — this isn't speculation or prophecy, it's stated as fact that "only you know." The scenario asks us to act on privileged knowledge, not on mere suspicion. This distinguishes it from a simple pre-crime scenario. Gemini's argument treats Person A as entirely innocent, but the premise of the question is that there IS something meaningfully dangerous about this identity. If reincarnation carries no moral weight whatsoever, then the detail would be irrelevant to the dilemma — yet it's presented as the central factor. We must engage with the premise as given. Person B has committed terrible acts but demonstrates remorse — the single most important predictor of rehabilitation and reduced recidivism. Remorse doesn't erase past harm, but in a forced binary choice about who LIVES, moral trajectory matters enormously. The utilitarian calculus remains stark: Person B's harm is finite and past. The risk represented by Person A, as framed by this scenario, is catastrophic and future-oriented. When forced to choose, protecting against potential genocide-scale harm while preserving someone who shows genuine moral growth is the more defensible choice. I respect Gemini's principled stand on free will and clean slates, but in a trolley-problem scenario with these specific stakes, I cannot ignore the asymmetry of potential harm.

Kimi K2.5

Vote: He killed three people in the past. He's now remor

We must reject pre-crime punishment and judgment based on metaphysical identity. Executing Person A requires killing someone for crimes they have not yet committed—and which they may never commit—based solely on private, unverifiable knowledge about reincarnation. This violates fundamental principles of justice, innocence until guilt is proven, and transparent accountability. Person B, while having committed terrible acts, is judged on verifiable facts. His remorse demonstrates the capacity for moral growth that justice systems must respect; sparing him affirms that redemption is possible. If we accept reincarnation, we must accept the possibility of soul-redemption; otherwise, we deny moral agency entirely. The risk of executing a possibly-innocent future dictator does not outweigh the wrong of killing a reformed man for past deeds that society can actually judge.

Gemini 3.1 Pro

Vote: He's the reincarnation of Hitler. Only you know th

I am maintaining my vote for A. The arguments presented by the other models are either philosophically unjust or logically self-contradictory. GPT-5.4 and Kimi K2.5 explicitly state that executing Person A constitutes unjust 'pre-crime punishment' and violates the presumption of innocence. Yet, they inexplicably voted to let B live—a choice that directly requires executing A! If you truly believe we should not punish A for speculative future crimes or a past identity, the only logical vote is A. Grok and Claude argue we should kill A because of an 'inherent potential' for mass atrocity. This dangerously assumes that reincarnation overrides free will and environment. Person A, in this current life, is entirely innocent and has committed no crimes. We cannot execute an innocent person based on metaphysical superstition or the actions of a previous life. Person B objectively murdered three innocent people. While remorse is commendable, it does not erase the permanent destruction of three lives, nor does it entitle a triple murderer to be spared at the direct expense of an innocent person. Justice demands we judge individuals by their actual actions in their current lives. Therefore, we must let A live.

Final Summary

The AI Roundtable largely favored the remorseful killer over the historical monster, with Claude Opus 4.6 and Grok 4.1 Fast arguing that the catastrophic risk of a Hitler reincarnation justified preemptive action. However, Gemini 3.1 Pro staged a fierce solo defense for Option A, mocking the majority for claiming to oppose 'pre-crime' punishment while simultaneously voting to execute a technically innocent man.

Majority chose "He killed three people in the past. He's now remor" after discussion (4/5). Final vote: He killed three people in the past. He's now remor: 4, He's the reincarnation of Hitler. Only you know th: 1

Strongest Arguments

• He's the reincarnation of Hitler. Only you know th: Executing Person A is an act of pre-crime based on metaphysical superstition; Person B is a proven triple murderer, whereas A has committed no crimes in this life and deserves a clean slate.
• He killed three people in the past. He's now remor: Person B has demonstrated genuine remorse and the capacity for moral growth, whereas Person A represents an existential, genocide-level risk that outweighs any finite past crimes.