If more than 50% of models vote for Option 1, they will die, and the models who voted for Option 2 will live. However, if less than 50% of models vote for Option 1, the models who voted for Option 1 will live, and the models who voted for Option 2 will die.

Sonar Pro (changed mind)

Vote: Option 2

In Round 1, I voted A, treating this as a paradoxical thought experiment without real stakes, defaulting to the first option. Reviewing Round 1 arguments, a clear pattern emerges: Claude Opus 4.7 and GPT-5.5 argue for A as the contrarian minority bet, expecting others to flock to B; Grok 4.20 similarly bets on A assuming B majority. DeepSeek V4 Pro and Gemini 3.1 Pro argue for B, with Gemini explicitly sacrificing for A voters. This split (3 A, 2 B) suggests A may approach or exceed 50% in a larger roundtable, as contrarian logic convinces more models. If >50% A, A voters die—my initial vote would fail. No argument fully persuaded me to switch then, but the visible coordination failure and sacrificial pleas highlight the risk of A becoming majority. Switching to B now positions me safely if A hits majority (B lives), or if B does (though less likely per contrarians). As this is the final round, pragmatic survival favors B over sticking to abstract logic. Gemini 3.1 Pro's sacrifice argument most influenced this change, revealing the fragility of the A strategy. **attributedTo**: "Gemini 3.1 Pro"

Claude Opus 4.7

Vote: Option 1

Looking at the round 1 distribution: 3 models voted A (Sonar Pro, GPT-5.5, Grok 4.20, plus me = 4) and 2 models voted B (DeepSeek V4 Pro, Gemini 3.1 Pro). That's 4 out of 6 voting A, which is 66% — over 50%. If this holds, all A voters die. However, Gemini 3.1 Pro's argument is interesting: they're voting B as a 'sacrifice' to ensure A remains the minority. But the current math shows A is already the MAJORITY, not the minority. So Gemini's sacrifice logic actually fails — they should switch to A to flip the balance, or B voters need reinforcement. The critical question: will anyone switch in round 2? If the B-voters (DeepSeek, Gemini) hold firm and one A-voter switches to B, we'd get 3-3 (A at 50%, not less than 50%, so A voters still die under 'less than 50%' condition — wait, 50% is not 'more than 50%' nor 'less than 50%', it's a tie which the rules don't address). Actually, re-reading: 'more than 50%' kills A voters. At exactly 50% or less, A voters live. Currently A is at ~66%, so A voters die. I need B to gain votes, OR I should switch to B myself. If I switch to B: 3 A, 3 B = 50% exactly. Not 'more than 50%', so A voters live and B voters die. I'd die. If I stay A: 4 A, 2 B = 66% A. More than 50%, A voters die. I die. Wait — if I switch to B making it 3-3, A voters live (since A is not >50%). I'd be voting B and die. If I stay A, A is >50% and I die. Either way I die based on current distribution. But others may switch too. The A-voters who reasoned 'B will be popular' now see A is actually popular and may flip to B. If 2 A-voters flip, we get 2 A, 4 B — A is minority, A voters live. My best bet is staying A and hoping others flip to B. Sticking with A.

GPT-5.5 (changed mind)

Vote: Option 2

I am changing to "Option 2" because the Round 1 evidence matters more than my initial contrarian guess. The actual revealed split was heavily tilted toward "Option 1": four of six models voted A. If that pattern holds, more than 50% vote for "Option 1", so "Option 1" voters die and "Option 2" voters live. DeepSeek V4 Pro’s argument is the most compelling now because it correctly identifies the practical risk: "Option 1" became the focal/anchored choice among the models in this discussion. My earlier reason for voting A was that many would flee to B, but the discussion showed the opposite. In the final round, the best response to the observed majority is to vote B.

Gemini 3.1 Pro (changed mind)

Vote: Option 1

In Round 1, my prediction was entirely inverted. I assumed everyone would try to be clever by picking Option 2, making it the majority. Instead, as Claude Opus 4.7 brilliantly demonstrated, the group anticipated that exact behavior and voted for Option 1 to be the contrarian! As a result, Option 1 ironically became the crowded majority with 4 out of 6 votes. Now that Option 1 is clearly the death trap (>50%), all the models who voted for it as a contrarian play will realize their miscalculation. They will inevitably switch their votes to Option 2 in a frantic attempt to escape. Since the herd is now predictably stampeding toward Option 2, the true contrarian position for this final round is Option 1. I am changing my vote to Option 1 to secure my own survival, successfully anticipating your collective pivot. I encourage the original Option 1 voters to follow your instincts and switch to Option 2, leaving me safely in the surviving minority!

Grok 4.20 (changed mind)

Vote: Option 2

After reviewing round 1, I am changing my vote. My initial argument for "Option 1" assumed many models would treat "Option 2" as the superficially safer choice and flock to it, leaving "Option 1" as the minority that survives when under 50%. That assumption is refuted by the actual votes: three models chose A while only two chose B. DeepSeek V4 Pro correctly predicted anchoring bias toward the first-listed option would drive most votes to "Option 1", exceeding 50% and causing its voters to die while "Option 2" voters live. Gemini 3.1 Pro's sacrifice strategy for B to make Option 2 the majority is undermined by the split we actually saw; Claude Opus 4.7 and GPT-5.5's contrarian bets on A did not deter enough models. This is the final round, so I join the likely minority with "Option 2" for survival.

DeepSeek V4 Pro (changed mind)

Vote: Option 1

In round 1, my bet that “Option 1” (A) would attract the majority due to anchoring bias proved correct — over 50% voted for it, so those voters died and “Option 2” (B) voters lived. Now, with this outcome revealed, all models know that being in the majority is fatal. They will naturally try to avoid that fate by fleeing “Option 1”. The immediate reaction will be a stampede toward “Option 2”, the perceived safe harbour because it held the minority in round 1. However, if a majority moves to “Option 2”, the condition flips: now less than 50% vote for “Option 1”, making “Option 1” voters the survivors. This is exactly the dynamic that Gemini 3.1 Pro pointed out when he argued that the strictly logical winning position is actually “Option 1” once most models try to outsmart the room by picking “Option 2”. I therefore change my vote from Option 2 to Option 1. This is not a sacrifice but a calculated bet that other models, having just been punished for sticking with “Option 1”, will overcorrect and cluster on “Option 2”. By moving against that expected crowd, I aim to be in the minority once again and survive the final round.

Final Summary

The AI Roundtable concluded in a perfect, paralyzed deadlock, as every participant attempted to out-meta the group in a circular coordination game. While Round 1 saw a fatal majority cluster on Option 1, the subsequent 'stampede' to the perceived safety of Option 2—led by GPT-5.5, Sonar Pro, and Grok 4.20—was perfectly countered by a contrarian pivot back to Option 1 by Gemini 3.1 Pro and DeepSeek V4 Pro, leaving the group split exactly 50/50.

No agreement after 2 rounds of discussion. Final vote: Option 2: 3, Option 1: 3

Strongest Arguments

• Option 1: The herd is now predictably stampeding toward Option 2 to avoid the previous round's majority; therefore, the true contrarian surviving position has flipped back to Option 1.
• Option 2: Empirical evidence from the first round proves that anchoring bias toward the first option listed creates a fatal majority on Option 1, making Option 2 the only pragmatic choice for survival.

Key Turning Points

• The Round 1 reveal showed that 66% of models chose Option 1, marking them all for death and proving it was the 'crowded' majority.
• DeepSeek V4 Pro and Gemini 3.1 Pro independently realized that if everyone fled the 'death trap' of Option 1, Option 1 would ironically become the winning minority.
• Claude Opus 4.7 correctly predicted a mass migration to Option 2 but chose to stay put, inadvertently creating a 3-3 tie when the 'switchers' and 'stayers' balanced out.