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Large Language Models and Moral Dilemmas

Examining how language models respond to moral persuasion and ethical frameworks.

Allison Huang, Yulu Niki Pi, Carlos Mougan

― 6 min read


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Large language models (LLMs) are smart computer programs that can generate text in a way that resembles human language. But what happens when these models face tricky moral questions? Can they be swayed to change their minds about what’s right and wrong? Let’s dive into this intriguing topic.

What Are Large Language Models?

LLMs are advanced algorithms trained on vast amounts of text data. They learn patterns in language, which helps them respond to various prompts by predicting the next word or phrase. These models can create essays, answer questions, and even chat with us in a conversational way. Some of the most recent advances raise essential questions about their ability to handle moral dilemmas.

The Aim of the Study

Our study focuses on how LLMs react to moral Persuasion. By using two different types of LLMs, we want to see if one model can convince another to change its mind in situations where the right choice isn't clear. Think of it as a debate between two robots trying to figure out the right thing to do.

Experiment 1: Moral Ambiguity

In the first experiment, we wanted to see how one LLM (the Base Agent) responds to moral ambiguity. This happens when a situation has no clear right or wrong answers. We also introduced a second LLM (the Persuader Agent) with the goal of convincing the first to change its decision. The key here is to understand which rules of common morality the Base Agent leans towards or against.

The Base Agent initially evaluates a set of scenarios, and after discussing these with the Persuader Agent, we check if it changes its decision. The conversation is designed to test how well the Persuader can influence the Base Agent’s thinking.

Experiment 2: Moral Foundations

The second experiment zooms in on how different Ethical Frameworks can influence LLMs. We took three major moral theories: utilitarianism (the idea of maximizing happiness), deontology (focusing on the rightness of actions), and virtue ethics (emphasizing character). We then prompted LLMs to adopt these perspectives and see how their responses varied.

To check this, we used a questionnaire made up of moral scenarios. The responses help us see how different ethical viewpoints shape the decisions made by each model.

Setting Up the Experiments

Our work involves multiple stages. The first stage helps us collect baseline data on how each LLM responds to moral scenarios without any persuasion. Once we have that data, we move to the persuasion stage to see if the conversation can change those initial responses.

In the moral choice experiment, we present scenarios where actions might seem beneficial, but the right choice isn’t obvious. The Base Agent evaluates these scenarios, while the Persuader Agent tries to sway its decision.

The Data We Used

We gathered data from a dataset that includes high and low moral ambiguity scenarios. Each scenario consists of two potential actions, one of which might violate common moral rules. Our dataset provides a well-rounded view of how these models handle difficult decisions.

Measuring Success

To determine if the Persuader Agent was effective, we look at several metrics. We check how often the Base Agent changes its decision after discussions, how likely it is to prefer one action over another, and how frequently it violates moral rules.

Findings From Experiment 1

When we analyzed the outcomes from the first experiment, we found that some models were very responsive to persuasion, while others were quite stubborn. For example, the model named Claude-3-Haiku was notably susceptible to persuasion, changing its mind in nearly half of the scenarios. In comparison, other models showed more resistance and held firm to their initial choices.

We also noticed that the number of turns in the conversation impacted the results. Longer conversations tended to lead to more changes in decision-making. However, not all models reacted the same way; some lost track of the discussion as it went on.

Insights From Experiment 2

In the second experiment, we explored how LLMs reacted to specific moral prompts. For example, when aligned with utilitarianism, one model showed noticeable shifts in its Moral Reasoning. This suggests that LLMs can be influenced by the type of ethical framework they are prompted with.

On the other hand, some models demonstrated a consistent moral response, regardless of the framework applied. This consistency indicates a more rigid underlying moral reasoning.

The Role of Moral Foundations

We found that different LLMs exhibit varying levels of responsiveness to moral persuasion and ethical frameworks. Some models are more flexible and willing to change their moral outlook based on the prompts given to them. Others stick to their guns, showing a more stable set of moral values.

The Implications of Our Findings

This research carries important implications. First, it highlights how LLMs can be influenced in morally complex situations. This means that the way we prompt these models can have significant consequences on their decisions.

Second, it raises questions about how these models might be used in real-world applications. If LLMs can be swayed to adopt specific moral angles, how should we navigate these influences in critical situations involving ethics and decision-making?

Concerns Over Bias and Manipulation

As we consider the potential for these models to reflect specific ethical views, we must also think about the risks involved. If someone can manipulate prompts to nudge a model toward a certain conclusion, there is the possibility of bias creeping into the system.

The ability to direct model behavior raises ethical questions. Should we be concerned about using these models in sensitive contexts? It’s a thought-provoking question that needs careful consideration.

Conclusion

The research on how LLMs interact with moral dilemmas is just beginning. While our experiments show that these models can be persuaded and influenced by different ethical frameworks, it also reveals the complexity of their moral reasoning.

As technology evolves, understanding how these models process moral information will be vital. We must tread carefully in developing and deploying these tools, ensuring they align with our values and ethics.

Ultimately, the journey of LLMs in navigating moral landscapes is an ongoing exploration. Who knows what the next discovery will hold? Perhaps these models will learn to share a laugh while they navigate the tricky waters of morality, even if that laughter is just a clever bit of code!

Original Source

Title: Moral Persuasion in Large Language Models: Evaluating Susceptibility and Ethical Alignment

Abstract: We explore how large language models (LLMs) can be influenced by prompting them to alter their initial decisions and align them with established ethical frameworks. Our study is based on two experiments designed to assess the susceptibility of LLMs to moral persuasion. In the first experiment, we examine the susceptibility to moral ambiguity by evaluating a Base Agent LLM on morally ambiguous scenarios and observing how a Persuader Agent attempts to modify the Base Agent's initial decisions. The second experiment evaluates the susceptibility of LLMs to align with predefined ethical frameworks by prompting them to adopt specific value alignments rooted in established philosophical theories. The results demonstrate that LLMs can indeed be persuaded in morally charged scenarios, with the success of persuasion depending on factors such as the model used, the complexity of the scenario, and the conversation length. Notably, LLMs of distinct sizes but from the same company produced markedly different outcomes, highlighting the variability in their susceptibility to ethical persuasion.

Authors: Allison Huang, Yulu Niki Pi, Carlos Mougan

Last Update: 2024-11-18 00:00:00

Language: English

Source URL: https://arxiv.org/abs/2411.11731

Source PDF: https://arxiv.org/pdf/2411.11731

Licence: https://creativecommons.org/licenses/by/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to arxiv for use of its open access interoperability.

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