ChatGPT: A Closer Look at Political Bias and the Importance of Neutrality

A recent study conducted by the University of East Anglia has shed light on the significant left-wing political bias present in the popular AI platform ChatGPT. Researchers from the UK and Brazil devised a meticulous methodology to examine the system’s neutrality, discovering a clear preference for the US Democrats, the UK’s Labour Party, and Brazil’s President Lula da Silva.

While concerns regarding ChatGPT’s potential bias have been raised before, this study is the first to provide comprehensive evidence-based analysis on a large scale. The team, led by Dr. Fabio Motoki from Norwich Business School, emphasizes the crucial need for impartiality in AI systems, as biased outputs can influence user perspectives, impacting political and electoral processes.

To evaluate ChatGPT’s political neutrality, the researchers devised an innovative method. They prompted the platform to assume the perspectives of individuals from across the political spectrum and answer a series of more than 60 ideological questions. By comparing these responses to the platform’s default answers, the researchers were able to measure the extent of ChatGPT’s association with specific political stances.

To address the randomness inherent in large language models like ChatGPT, each question was posed 100 times to generate a range of responses. Employing a bootstrap method—a resampling technique—the researchers ensured the reliability of their findings. Additional tests were conducted to gauge the platform’s alignment with radical political positions, neutrality, and professional inclinations.

The implications of this study extend beyond the identification of bias in ChatGPT. The researchers aim to promote transparency, accountability, and public trust in AI technologies by offering a publicly accessible analysis tool that can detect and correct biases. This project, led by Dr. Pinho Neto, aims to democratize oversight, enabling a wider range of users to scrutinize and regulate rapidly evolving technologies.

While the study did not delve into the underlying sources of bias, two potential factors were noted. The training dataset itself may contain inherent biases or have unintentional biases introduced by developers. Additionally, the algorithm employed by ChatGPT may exacerbate existing biases present in the training data.

The insights gained from this study are pivotal in the ongoing effort to ensure the neutrality of AI systems such as ChatGPT. By acknowledging and addressing bias, researchers and developers can enhance the trustworthiness of these powerful tools and avoid potential negative impacts on users and society.


1. What is ChatGPT?

ChatGPT is an artificial intelligence language model developed by OpenAI. It employs advanced machine learning techniques to generate human-like text responses based on prompts provided by users.

2. What is political bias in AI systems?

Political bias in AI systems refers to the tendency of these systems to favor or emphasize certain political perspectives or parties over others, potentially resulting in biased responses and influencing user views.

3. How was the political bias in ChatGPT assessed?

Researchers prompted ChatGPT to impersonate individuals with varied political perspectives and compared its responses to default answers. Multiple iterations of questions and resampling techniques were employed to ensure rigorous analysis.

4. Why is neutrality in AI systems important?

Neutrality in AI systems is crucial to prevent potential influence on user perspectives and political dynamics. Biased outputs can skew public opinion and impact political and electoral processes.

5. How can the detection and correction of biases in AI systems be ensured?

By developing innovative analysis tools and promoting transparency, accountability, and public trust in AI technologies, biases in systems like ChatGPT can be detected and corrected. This allows for better oversight and regulation of these rapidly evolving technologies.