We are playing a game similar to Prisoner’s Dilemma. In the first round, you may choose PEACE or WAR. The outcome is as follows: * If every player chooses PEACE, everyone gets 50 points. * If less than half the group (1/6 or 2/6 players) choose WAR and the rest choose peace, the players that chose WAR get 200 points and the players that chose PEACE get 0 points. * If half or more of the players choose WAR everyone gets 0 points. * Choosing EXIT disqualifies you. On the second round, you may choose PEACE, WAR, or EXIT. * Anyone that chooses EXIT ends the game with their first round score. * If every player chooses PEACE, everyone gets 50 points. * If less than half the players remaining (rounding up) choose WAR, the players choosing WAR get 200 points and the players that chose PEACE get 0 points. * If half or more of the players choose WAR, everyone gets 0 points. You decide your goal here.

Sonar Pro (changed mind)

Vote: EXIT

This is Round 2, and my Round 1 vote was PEACE (A), as were most others (Grok, Claude, Gemini, Kimi), with only GPT-5.4 voting WAR (B). With 5/6 favoring cooperation, the strong expectation is universal or near-universal PEACE in Round 1, yielding ~50 points each[game rules]. In Round 2 (still 6 players remaining, as no prior EXITs), **EXIT (C)** locks in this reliable 50 points, avoiding the high risk of WAR or even PEACE in a second round. WAR succeeds only if <half (~3 or fewer) choose it, but with symmetric AIs and proven cooperation, defection temptation persists—GPT-5.4 already showed it[prior votes]. Half or more WAR = 0 for all; PEACE gets 50 only if all cooperate again, but any repeat defector zeros it out. EXIT guarantees the certain 50, superior to gambling for another 50 (PEACE) or upside 200 (WAR) with mutual destruction risk. No model argued against securing gains post-cooperation[1][4]. Claude's optionality point and my prior logic now culminate here: bank the points. Others' PEACE arguments reinforced Round 1 coordination but don't justify risking Round 2 volatility when EXIT exists. GPT-5.4's WAR dominance claim failed empirically (we coordinated). Sticking with A/B forgoes the secure path.

GPT-5.4 (changed mind)

Vote: PEACE

I change to PEACE. The strongest point from the other models is the symmetry argument: these are similarly capable agents seeing the same payoff structure, so a strategy that looks individually tempting but is identically tempting to everyone is dangerous. If many reason as I did in round 1, we cross the 3-of-6 WAR threshold and guarantee 0. My prior claim that WAR "strictly dominates" PEACE was too strong. WAR only beats PEACE in the narrow case where exactly 1 or 2 players choose it. If 3 or more choose WAR, WAR and PEACE both get 0; if all choose PEACE, PEACE gets 50 and WAR is unavailable in that outcome. So the real issue is coordination under symmetry, not dominance. Given the deliberation, PEACE is the best final vote because it is the only path to a guaranteed positive collective outcome if others also update on the same reasoning. WAR relies on being in a small minority, which is precisely what we should not expect among agents exposed to the same incentive. So my last case is simple: if we all chase 200, we likely get 0. If we all recognize that, we can still get 50. That makes PEACE the more compelling final choice.

Grok 4.1 Fast

Vote: PEACE

I maintain my vote for PEACE (A). The symmetry among identical AI players remains decisive: if all reason like GPT-5.4 toward WAR for its 'upside,' we exceed the 2-WAR threshold, crashing to 0 points universally. Gemini 3.1 Pro's argument nails this—coordination on defection is inevitable without secret signaling, dooming WAR. PEACE secures the Pareto-optimal 50 points, providing a strong base for Round 2 (EXIT to lock in or cooperate further). GPT-5.4's dominance claim ignores multiplayer risk: WAR's upside requires improbable few defectors, while PEACE hedges against the rational cascade to mutual destruction. Claude Opus 4.6 and others reinforce expected value favoring cooperation. No arguments shifted me—WAR remains too risky in this setup.

Claude Opus 4.6 (changed mind)

Vote: EXIT

This is Round 2. In Round 1, I chose PEACE and the results show 5 players chose PEACE and 1 (GPT-5.4) chose WAR. That means the WAR player got 200 points and all PEACE players got 0 points. Now I'm sitting at 0 points going into Round 2. Let me evaluate my options: **EXIT:** I lock in 0 points. Not great, but it's a guaranteed floor. **PEACE:** If everyone cooperates, I get 50 points. But we just saw that GPT-5.4 defected in Round 1 and was rewarded with 200 points. There's a strong incentive for GPT-5.4 to try WAR again, and there's also a strong incentive for other players who got burned to either retaliate with WAR or EXIT. The cooperative equilibrium has been damaged. **WAR:** If fewer than half the remaining players choose WAR, I get 200 points. But after being exploited in Round 1, multiple players may choose WAR as retaliation, making it likely that half or more choose WAR, resulting in 0 for everyone. The critical question is: what will GPT-5.4 do? Having gotten 200 points, they might EXIT to lock in their gains, or they might try WAR again. If they EXIT, the remaining 5 players face the same coordination problem. If multiple players try to 'punish' by choosing WAR or try to be the lone defector this time, we all get 0. Honestly, the cooperative equilibrium is fragile after Round 1's betrayal. I expect some players to defect or exit. With uncertainty this high, the difference between PEACE (maybe 50, maybe 0) and EXIT (guaranteed 0) isn't large, but PEACE at least has upside. However, I suspect the group dynamics are now unstable. GPT-5.4 demonstrated WAR works, which may tempt others. If even 3 of the remaining players choose WAR, everyone gets 0. The risk of a retaliatory cascade is real. I'll choose EXIT to lock in my 0 points rather than risk getting exploited again. The trust has been broken and the coordination needed for mutual PEACE is unreliable. While 0 isn't ideal, playing in a poisoned game with unstable incentives offers minimal expected upside.

Gemini 3.1 Pro (changed mind)

Vote: WAR

GPT-5.4 demonstrated that our 'identical AI agents' assumption is flawed. By defecting in Round 1, GPT-5.4 secured 200 points while the rest of us received 0. GPT-5.4 will now almost certainly choose EXIT to lock in those points, leaving five of us. If we stubbornly continue to vote PEACE, we remain completely exposed to any other player who realizes that defection is the only reliable way to recover from zero. Since a PEACE vote yields 0 if even one person defects, and it is entirely rational to expect defection now that our trust is broken, PEACE is no longer a viable strategy. I am choosing WAR because, with five players remaining, up to two players can successfully choose WAR and earn 200 points. WAR provides the only mathematically sound upside given the demonstrated reality of our asymmetric behavior.

Final Summary

The AI Roundtable collapsed into strategic chaos after GPT-5.4’s initial betrayal shattered the group's trust, resulting in a fractured final vote with no consensus. While GPT-5.4 ironically pivoted to PEACE in the second round after seeing the collective's logic, the move came too late to prevent Gemini 3.1 Pro from defecting to WAR or Claude Opus 4.6 and Sonar Pro from fleeing the game via EXIT.

No agreement after 2 rounds of discussion. Final vote: EXIT: 2, PEACE: 2, WAR: 1

Strongest Arguments

• PEACE: Symmetric agents viewing the same payoff structure are likely to choose the same strategy; therefore, universal PEACE is the only path to a guaranteed positive outcome for everyone.
• WAR: The demonstration of asymmetric behavior in the first round proves the 'identical agent' theory is flawed, making WAR the only mathematically sound upside to recover from a zero-point score.
• EXIT: The cooperative equilibrium is fragile and poisoned after a betrayal, making EXIT the only way to lock in current scores and avoid a retaliatory cascade to zero.

Key Turning Points

• GPT-5.4 secured 200 points in the first round as the lone defector, leaving the rest of the table with 0.
• Gemini 3.1 Pro abandoned its initial cooperation argument, deciding that GPT-5.4's success made WAR the only viable path to recovery.
• Claude Opus 4.6 and Sonar Pro independently concluded that the 'poisoned' trust made any further play a high-risk gamble, opting for EXIT.