Josh Albrecht, CTO of Imbue, discusses the limitations of current language models (LLMs) in making ethical decisions. The podcast explores imbue's mission to create robust and safe AI agents, the potential applications and limitations of AI models, and the need for improvements in LLMs. The speakers also touch on reevaluating metrics, liability for AI systems, and societal issues in machine learning research.
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Quick takeaways
LLMs, despite their superhuman performance, are not suitable for making ethical decisions due to their sensitivity to word choice and lack of physical reasoning abilities.
Evaluating LLMs should go beyond traditional accuracy measurements and include metrics like worst case accuracy, framing effects, and adversarial examples to develop reliable and useful models.
Deep dives
Unsuitability of LLMs for Ethics and Safety Decisions
Current large language models (LLMs) exhibit superhuman performance in ethics data sets, but their suitability for ethical decision-making is questionable. LLMs show high accuracy in answering ethical questions when compared to human performance. However, they are sensitive to word choice and can be easily tricked or influenced by slight perturbations in the inputs. LLMs lack physical reasoning abilities and may miss the implications of certain scenarios. Despite achieving high accuracy in in-domain tasks, LLMs struggle with out-of-domain examples and adversarial scenarios. These limitations suggest that LLMs, as currently developed, are not reliable for making ethical decisions.
Evaluation Metrics and Model Development
The evaluation of LLMs should go beyond traditional accuracy measurements. Metrics such as worst case accuracy, adversarial examples, and framing effects should be considered. Evaluating the reasoning and understanding capabilities of LLMs and exploring the nuances of right and wrong are important for model development. Specific data sets on various ethical topics, including cultural variations, should be created to improve the evaluation process. Accuracy alone is insufficient; comprehensive evaluations are necessary for developing reliable and useful LLMs.
Navigating Ethical Questions and the Role of LLMs
Ethical decision-making is complex and requires considerations beyond simple right or wrong. Cultural differences, background beliefs, and nuanced scenarios influence human responses to ethical questions. While LLMs can achieve superhuman performance in narrow tasks, they lack the understanding and reasoning skills humans possess. LLMs are highly sensitive to prompt wording and can be easily influenced. The development of more advanced LLMs should focus on incorporating better reasoning abilities, accounting for adversarial examples, and avoiding biases in training data.
The Cautionary Tale and Future Perspectives
The research emphasizes caution in using LLMs for important ethical decisions. It suggests avoiding black box systems in domains such as algorithmic decision-making or legal systems. There is a need for regulations and frameworks outlining the appropriate use of LLMs for critical decisions. The future of LLMs should prioritize explainability, procedural fairness, and accountability. Further research and data sets exploring complex moral scenarios and evaluations are essential to ensure the responsible and ethical development of LLMs.
We are excited to be joined by Josh Albrecht, the CTO of Imbue. Imbue is a research company whose mission is to create AI agents that are more robust, safer, and easier to use. He joins us to share findings of his work; Despite "super-human" performance, current LLMs are unsuited for decisions about ethics and safety.
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