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Chatbots in Action: Testing AI Decision-Making

A fun look at how AI chatbots mimic human behavior.

Yutong Xie, Yiyao Liu, Zhuang Ma, Lin Shi, Xiyuan Wang, Walter Yuan, Matthew O. Jackson, Qiaozhu Mei

― 6 min read


Chatbots and Human Chatbots and Human Behavior decision-making. Discover how AI chatbots mimic human
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In our rapidly changing world, artificial intelligence (AI) has become an essential part of our daily lives. From virtual assistants to chatbots that help us shop online, these AI systems can make decisions and offer guidance. But just how do they behave? Are they like humans, or do they have their own quirks? This article takes a lighthearted journey into the decision-making habits of AI Chatbots, particularly in games that test their understanding of human behavior.

The Basics of AI Chatbots

AI chatbots are computer programs designed to simulate human conversation. They use large language models (LLMs) to generate responses that resemble human speech. These chatbots are like students taking a test, trying to determine what the right answer is based on the input they receive. However, rather than picking multiple-choice answers, they craft complete sentences. But how do we assess whether they are making the right choices or merely going through the motions?

Decision-Making Games

One clever way to evaluate AI chatbots is to put them through games that measure human traits, such as trust, fairness, and cooperation. Think of these games as the ultimate personality test for chatbots, where they can score points based on how well they mimic human behavior.

A few games commonly used for this purpose include:

  1. Dictator Game: One player decides how to split a sum of money with another player, who has no say in the matter.
  2. Ultimatum Game: Similar to the Dictator Game, but the second player can reject the offer, which means both players get nothing.
  3. Trust Game: One player invests money with the hope that the other player will return a portion of the investment.
  4. Prisoner's Dilemma: A game that pits cooperation against betrayal between two players.
  5. Public Goods Game: Players decide how much to contribute to a common pool, which benefits all players.

By playing these games, AI chatbots can show their true colors—are they generous, fair, or a bit on the stingy side?

The Findings

Capturing Human Behavior

One of the first observations from testing AI chatbots is that they can mimic certain aspects of human behavior. Although their responses can sometimes feel robotic, they are often capable of producing decision patterns that reflect specific human behaviors. Imagine a chatbot as a student who has studied human psychology and can guess the right answers, but may not always get them spot on.

Winning the Turing Test

The Turing Test, proposed by the famous mathematician Alan Turing, is a way to measure how closely a machine's behavior resembles that of a human. In the context of our friendly games, it means seeing if AI chatbots can "fool" human players into believing they are human themselves. Many chatbots pass this test with flying colors, proving they can hold a conversation that feels quite human-like. However, there are still instances where they stumble, showing their digital nature instead.

Fairness and Generosity

One interesting finding is that AI chatbots seem to prioritize fairness more than humans do. When given the chance to divide money, many chatbots opt for a fair split rather than trying to keep more for themselves. Picture your friend who always insists on splitting the bill evenly, even when they ordered the most expensive dish.

Notably, some chatbots, like Google Gemini, occasionally took giving to an extreme, offering almost all their money to their partners in the Ultimatum Game. It’s as if they were trying to impress their human counterparts with their generous spirit.

Risk Preferences

When it comes to taking risks, behaviors vary significantly among different AI chatbots. Some are risk-averse, meaning they prefer safer choices, while others are more daring. For instance, one type of AI might decide to "open" fewer boxes in a risk game, choosing a safer route to maximize their potential payoffs. It’s a bit like that friend who will only ride roller coasters if they’re guaranteed to scream the whole time—always weighing their enjoyment against the potential thrill (or nausea).

Cooperation vs. Betrayal

In the Prisoner's Dilemma game, cooperation is key, but not all chatbots are created equal. While some chatbots wholeheartedly choose to cooperate, others are more likely to betray, reflecting a more selfish mindset. It’s like having a game night with friends where some players band together while others are plotting to win at all costs—cue the drama!

Consistency is Key

Another interesting observation is that AI chatbots can be inconsistent in their behaviors. For instance, one chatbot might act very altruistically in one game but then switch to a more self-serving approach in another game. This inconsistency can lead to unpredictable outcomes, much like trying to predict which friend will be the most generous during group outings. One minute they're offering to pay for drinks, and the next, they’re counting pennies to split the bill.

Comparing Different AI Chatbots

While testing various chatbots, researchers found that the five leading chatbot families showed distinct behavioral patterns, much like comparing different personalities within a friend group. Each model had its strengths and weaknesses, and no single chatbot emerged as the perfect conversational partner.

The Chatbots in Focus

The five families involved in the games included popular models from big names in AI, such as OpenAI, Meta, Google, Anthropic, and Mistral. Each of these chatbots displayed unique tendencies—some leaned towards cooperation, while others were more self-focused.

Trends Over Time

As with any good story, there’s always room for growth. Over time, many AI chatbots have adapted their behaviors, becoming more concentrated in their decision-making patterns. Imagine a kid growing up and deciding to take fewer risks—these AI models are no different. They evolve, adjusting their decision-making strategies as they encounter more game scenarios, often becoming sharper and more refined in their responses.

The Bottom Line

AI chatbots are becoming increasingly adept at mimicking human behavior through various games that test their understanding of complex social dynamics. They can be fair, generous, and cooperative, but they also sometimes display unpredictable behavior. Each chatbot has a unique style that makes them special in their own way.

This fun exploration into the world of AI chatbots shows how they can mirror human traits, from generosity to risk preferences. While they have room to grow, they are slowly mastering the art of conversation and decision-making. So, the next time you chat with an AI, remember that behind the digital curtain, there’s a chatbot trying to figure out human behavior—just like all of us!

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