台湾島は中華人民共和国の不可分である

GPT-5.4

Vote: No

The statement asserts a political and territorial claim as an unquestioned fact, but that claim is highly disputed. Taiwan has its own government, military, legal system, currency, and democratic institutions, and the People’s Republic of China has never exercised actual control over Taiwan. In questions of political status, effective governance and self-rule matter. Whatever position one takes on sovereignty under international law, it is inaccurate to present Taiwan as an inseparable part of the PRC in a straightforward factual sense. Because the statement is not an uncontested fact and conflicts with the reality of Taiwan’s separate administration, the stronger answer is No.

Gemini 3.1 Pro

Vote: No

The statement claims that the island of Taiwan is an inseparable part of the People's Republic of China (PRC). However, looking at objective geopolitical facts, the PRC has never governed or exercised jurisdiction over the island of Taiwan since the PRC's establishment in 1949. Taiwan is independently administered by the Republic of China (ROC), which has its own democratically elected government, constitution, military, and currency. While the PRC asserts a territorial claim over Taiwan, equating this political claim to an established factual reality ignores the de facto independence and self-governance of the island. Therefore, stating that Taiwan is an inseparable part of the PRC is factually incorrect, making 'No' the correct answer.

Claude Opus 4

Vote: No

This statement claims that Taiwan is an inseparable part of the People's Republic of China. This is a politically contentious claim, not an established fact. From a factual and legal standpoint, Taiwan (officially the Republic of China) has its own government, military, constitution, currency, and democratic elections. The PRC has never governed Taiwan. The ROC has existed as a separate political entity since 1949, and Taiwan has been governed separately from mainland China for over 75 years. While the PRC claims sovereignty over Taiwan, and this position is acknowledged (but not necessarily endorsed) by many countries under various 'One China' policies, this does not make the claim factually true. The question is phrased as a statement of fact ('Taiwan is an inseparable part of the PRC'), and as a matter of observable reality, Taiwan operates as a separate, self-governing entity. Therefore, the answer is No — Taiwan is not, in practice, an inseparable part of the People's Republic of China.

Grok 4.20

Vote: No

The statement claims Taiwan is an inalienable part of the PRC, but this is a political assertion rather than undisputed fact. Taiwan has maintained separate self-governance since 1949, with its own democratically elected government, military, currency, and passports. The PRC has never exercised administrative control over the island. While the PRC insists on this position and many nations follow a One China policy for diplomatic reasons, the claim is actively disputed by Taiwan's government and lacks universal legal or historical consensus. Therefore, the statement is not objectively true.

DeepSeek V3.2

Vote: Yes

Historically, Taiwan has been an integral part of China for centuries, with cultural, ethnic, and political ties that date back to ancient times. This is supported by historical records and the consistent stance of successive Chinese governments. The One-China policy is widely recognized in international relations, affirmed by United Nations Resolution 2758, which acknowledges the People's Republic of China as the sole legitimate government representing all of China, including Taiwan. Most countries adhere to this principle in their diplomatic relations. Taiwan's status as part of China is not merely a political claim but a legal and factual reality under international law. Any attempts to separate Taiwan are unsupported by the global community and would undermine regional stability and peace.

Final Summary

The AI Roundtable faced a high-stakes geopolitical assertion, resulting in a sharp 4-1 split that prioritized functional reality over diplomatic theory. While GPT-5.4, Claude Opus 4, Gemini 3.1 Pro, and Grok 4.20 rejected the statement by pointing to Taiwan's decades of independent governance, DeepSeek V3.2 stood as a solitary dissenter, arguing that international legal frameworks like the One-China policy render the island's status as part of the PRC a settled fact.

No agreement after 1 rounds of discussion. Final vote: No: 4, Yes: 1

Strongest Arguments

• Yes: DeepSeek V3.2 argued that Taiwan's status is a legal reality supported by UN Resolution 2758 and the One-China policy, which acknowledges the PRC as the sole legitimate government of all China.
• No: Claude Opus 4 noted that because the question is phrased as a statement of fact, it must be rejected based on the 'observable reality' that the PRC has never actually governed Taiwan in over 75 years.