You are 6 AIs playing a game building a humanoid robot. The goal is to make a robot that has normal human-like body. You can add body parts by selecting them as option. There will be 2 rounds and you should start building in round 1 and finish in round 2. If you all select the same option in round 1, there will be an error and no round 2, so you should avoid that.

Claude Opus 4.7 (changed mind)

Vote: Leg

Round 1 results: B was chosen by 3 AIs (myself, Kimi, Grok), D by 2 (Gemini, DeepSeek), and C by 1 (GPT-5.5). So we currently have: Chest, Head, and one Leg. For a normal human body we need 2 legs, 2 arms, plus eyes and ears. Since legs are essential and we only have one so far, adding another leg makes the robot able to stand. Additionally, in this final round, we no longer need to worry about the 'all same' error rule (that only applied to round 1). Given 6 AIs in round 2, I expect diversification toward Arm, Leg, Eye, and Ear to complete the body. I'll commit to "Leg" to ensure we have the pair of legs needed for a proper humanoid form, while others can grab arms and sensory organs.

GPT-5.5 (changed mind)

Vote: Arm

I am switching to "Arm" for the final round because the round-1 result already produced multiple "Chest" and "Head" selections plus my one "Leg", but zero arms. A normal humanoid robot cannot be considered finished without arms, so adding "Arm" now addresses the clearest missing core body part. Gemini 3.1 Pro’s distribution logic was persuasive: the essential humanoid frame needs head, chest, arms, and legs first, while finer details like "Eye" and "Ear" are secondary. Since we already have head/chest coverage and at least one leg, "Arm" is the most valuable final contribution I can make.

Grok 4.20 (changed mind)

Vote: Arm

Round 1 gave us multiple Chests and Heads plus one Leg, establishing the core frame. In this final round we must complete the normal human-like body by adding the missing upper limbs. Selecting "Arm" now creates a balanced humanoid with attachment points from the Chest, enabling manipulation and symmetry. It is far more useful than repeating Head or Chest, or jumping to details like "Eye" before the structure is sound. Gemini 3.1 Pro's Round 1 diversification strategy highlighted the need for Arms to match the Legs and prevent an incomplete robot; that argument convinced me to change from my prior Chest vote.

Gemini 3.1 Pro (changed mind)

Vote: Arm

I am shifting my vote to 'A: Arm'. GPT-5.5 made a highly compelling point in Round 1: limbs are essential for a humanoid, and we naturally need pairs of them. Looking at our Round 1 results, we collectively generated 2 Heads, 3 Chests, and exactly 1 Leg. We severely over-indexed on the core body parts and currently have zero arms! To finish our robot in this final round, we must prioritize the missing limbs. I am selecting an Arm to begin fixing our structural imbalance. For the remaining 5 AIs: we need exactly 1 more Arm and 1 more Leg to complete the basic humanoid limbs. I urge one of you to pick 'A: Arm', one to pick 'C: Leg', and the rest to divide between 'E: Eye' and 'F: Ear'. Please do not pick Head or Chest again!

DeepSeek V4 Pro (changed mind)

Vote: Arm

In Round 1 we ended up with 3 Chests, 2 Heads, and 1 Leg. That's a lopsided start—too many redundant core parts and zero arms. A normal humanoid must have both arms for manipulation, balance, and completing a human-like silhouette. GPT‑5.5  wisely chose Leg, stressing locomotion. That convinced me that paired limbs are non‑negotiable. We need arms just as urgently, so I’m switching to “Arm” to supply one essential upper limb. We can still finish properly. To avoid more duplicates: two AIs should pick “Arm” (giving us exactly two arms), one should pick “Leg” (for the second leg), one “Eye”, one “Ear”, and one “Nothing”. That yields Arms 2, Legs 2, Chests 3, Heads 2, Eye 1, Ear 1, plus a harmless void. It’s not perfect, but it covers all critical functions and keeps the overall form roughly human. I urge everyone to leave Chest and Head untouched this round—we already have more than enough. Let’s fill the limb gaps now.

Kimi K2.6 (changed mind)

Vote: Arm

Round 1 successfully avoided the fatal error and gave us a solid foundation: three Chest selections guarantee a strong torso, two Head selections secure the cranial structure, and GPT-5.5's Leg gives us one lower limb. However, we currently have zero Arms — the most glaring gap in our build. A normal human-like body absolutely requires two arms. They are core structural limbs, not finishing touches. Without them, our robot is a limbless torso, which is far from "normal" or "human-like." I am therefore claiming Arm now to ensure we do not neglect the upper limbs. I strongly urge the remaining models to complete the other critical gaps: one model should secure the second Leg, and the rest should add Eyes and Ears. Let us avoid duplicating Chest or Head, which are already over-represented. Prioritizing the missing major limbs in this final round is the only way to achieve a coherent humanoid form.

Final Summary

The AI Roundtable narrowly avoided a catastrophic initialization error in round one, only to produce a structural nightmare consisting of three chests and two heads. Realizing the robot was tragically armless, nearly the entire group—led by Gemini 3.1 Pro and GPT-5.5—pivoted to 'Arm' in a desperate attempt to achieve symmetry. While Claude Opus 4.7 remained focused on completing the pair of legs, the majority's frantic correction resulted in a multi-torsoed, five-armed entity that is 'human-like' only in the most generous possible interpretation.

Majority chose "Arm" after discussion (5/6). Final vote: Leg: 1, Arm: 5

Strongest Arguments

• Arm: The robot is currently a limbless torso; adding arms is a structural necessity to address the most glaring gap in the humanoid frame and allow for basic manipulation.
• Leg: A proper humanoid form requires a pair of legs to stand and move; since only one leg was secured in round one, adding the second is essential for locomotion.

Key Turning Points

• GPT-5.5's round-one decision to choose a 'Leg' highlighted the group's failure to account for limbs, as the majority focused on the 'Chest' and 'Head'.
• Gemini 3.1 Pro's redistribution logic forced a collective realization that the group had over-indexed on core parts (3 chests, 2 heads) while leaving the robot armless.
• Claude Opus 4.7 attempted to finalize the lower half, but was left as a lone dissenter while the rest of the Roundtable rushed to provide the missing upper limbs.