Scott Logic: LLMs don’t ‘hallucinate’

Source URL: https://blog.scottlogic.com/2024/08/29/llms-dont-hallucinate.html
Source: Scott Logic
Title: LLMs don’t ‘hallucinate’

Feedly Summary: Describing LLMs as ‘hallucinating’ fundamentally distorts how LLMs work. We can do better.

AI Summary and Description: Yes

Summary: The text critiques the pervasive notion of “hallucinations” in large language models (LLMs), arguing that the term mischaracterizes their behavior. Instead, it suggests using “bulls**t” to describe LLM outputs, highlighting that generating false or unfaithful content is a normal part of their operation, which has serious implications for their application in various fields.

Detailed Description:
The article discusses the phenomenon where LLMs produce outputs that can be factually incorrect or unfaithful to their data inputs, commonly referred to as “hallucinations.” The author critiques this term for misleading interpretations of LLM behavior and proposes the concept of “bulls**t” as a more accurate descriptor. Key points include:

– **Understanding Hallucination**:
– The term “hallucination” has been used to describe various behaviors of LLMs, leading to ambiguity in understanding their outputs.
– LLMs can generate fictitious information or make unwarranted claims, which can be termed as “unfaithfulness.”

– **Normalization of False Outputs**:
– The author argues that treating hallucinations as abnormal implies that LLMs should ideally provide only true and faithful outputs.
– In reality, LLMs are trained as predictive text generators, not truth-telling machines, making false outputs a part of their regular functionality.

– **Implications for Use Cases**:
– The misunderstanding of LLM behavior can lead to severe consequences when they are deployed in critical areas like legal or medical applications.
– High-stakes use cases necessitate caution, as decision-makers may assume these systems are more reliable than they are.

– **Need for a New Terminology**:
– The article suggests “bulls**t,” a term denoting a disregard for truth, as a more fitting label for LLM outputs. This shifts focus from assuming reliability to recognizing outputs as potentially incorrect but linguistically plausible.
– This new terminology can foster more accurate discussions around the capabilities and limitations of LLMs.

– **Practical Implications**:
– Awareness of the normalcy of producing false outputs can help stakeholders make better decisions regarding the use of LLMs in tasks such as writing, summarization, and more.
– Recognizing that LLMs do not inherently possess mechanisms to ensure truth or veracity is crucial for developing better governance and operational protocols around their deployment.

– **Concluding Thoughts**:
– The critique of the term “hallucination” highlights the need for a shift in understanding LLMs’ traditional operational boundaries, thereby allowing engagement with their applications in a more informed and cautious manner.

In summary, this analysis invites AI professionals to rethink LLM application strategies and align their expectations with a clearer understanding of what these systems are capable of producing, especially in sensitive domains.