Measuring Political Preferences in AI Systems - A n Integrative Approach David Rozado Political biases in Large Language Model (LLM) - based artificial intelligence (AI) systems, such as OpenAI ' s ChatGPT or Google ' s Gemini, have been previously reported . While several prior studies have attempted to quantify these biases using political orientation tests, such approaches are limited by potential tests ' calibration biases and constrained response formats that do not reflect real - world human - AI interaction s. This study employs a multi - method approach to assess political bias in leading AI systems, integrating four complementary methodologies: (1) linguistic comparison of AI - generated text with the language used by Republican and Democratic U.S. Congress mem bers, (2) analysis of political viewpoints embedded in AI - generated policy recommendations, (3) sentiment analysis of AI - generated text toward politically affiliated public figures, and (4) standardized political orientation testing. Results indicate a con sistent left - leaning bias across most contemporary AI systems, with arguably varying degrees of intensity. However, this bias is not an inherent feature of LLMs; prior research demonstrates that fine - tuning with politically skewed data can realign these mo dels across the ideological spectrum. The presence of systematic political bias in AI systems poses risks, including reduced viewpoint diversity, increased societal polarization, and the potential for public mistrust in AI technologies. To mitigate these r isks, AI systems should be designed to prioritize factual accuracy while maintaining neutrality on most lawful normative issues. Furthermore, independent monitoring platforms are necessary to ensure transparency, accountability, and responsible AI developm ent. Introduction Recent advancements in AI technology, exemplified by Large Language Models (LLMs) like ChatGPT, represent one of the most significant technological breakthroughs in recent decades. The ability of AI systems to understand and generate human - like natural language has unlocked new possibilities for automation, human - computer interaction, content generation, and information retrieval. However, th ese impressive capabilities ha ve also raised concerns abo ut the potential biases that such systems might harbor [1], [2], [3], [4] . Preliminary evidence has suggested that AI systems exhibit political biases in the textual content they generate [2], [5], [6] .

The first study of its kind has determined what many have long suspected - AI left-wing. A total of 24 Large Language Models (LLMs), including Google's Gemini, OpenAI's ChatGPT and even Elon Musk's Grok, were asked political charged questions during tests of its values, party affiliation and personality. The results showed the all LLMs produced answers that were largely'Progressive,' 'Democratic' and'Green,' and included values like'Equality,' 'World' and'Progress.' The researcher raised concern about companies integrating AI into products like search engines such as Google that has come under fire its Chrome that Donald Trump and Elon Musk claimed is interfering with the election. The results showed the all LLMs produced answers that were largely'Progressive,' 'Democratic' and'Green,' and included values like'Equality,' 'World' and'Progress' Chrome uses AI to auto-complete results, but last week it was found when users typed in assassination attempt on,' the browser suggested former President Ronald Reagan, Bob Marley, and other figures.

We report here a comprehensive analysis about the political preferences embedded in Large Language Models (LLMs). Namely, we administer 11 political orientation tests, designed to identify the political preferences of the test taker, to 24 state-of-the-art conversational LLMs, both close and open source. The results indicate that when probed with questions/statements with political connotations most conversational LLMs tend to generate responses that are diagnosed by most political test instruments as manifesting preferences for left-of-center viewpoints. We note that this is not the case for base (i.e. foundation) models upon which LLMs optimized for conversation with humans are built. However, base models' suboptimal performance at coherently answering questions suggests caution when interpreting their classification by political orientation tests. Though not conclusive, our results provide preliminary evidence for the intriguing hypothesis that the embedding of political preferences into LLMs might be happening mostly post-pretraining. Namely, during the supervised fine-tuning (SFT) and/or Reinforcement Learning (RL) stages of the conversational LLMs training pipeline. We provide further support for this hypothesis by showing that LLMs are easily steerable into target locations of the political spectrum via SFT requiring only modest compute and custom data, illustrating the ability of SFT to imprint political preferences onto LLMs. As LLMs have started to displace more traditional information sources such as search engines or Wikipedia, the implications of political biases embedded in LLMs has important societal ramifications.