Large language models (LLMs) seem set to transform businesses. Their ability to generate detailed, creative responses to queries in plain language and code has sparked a wave of excitement that led ChatGPT to reach 100 million users faster than any other technology after it first launched. Subsequently, investors poured over $40 billion into artificial intelligence startups in the first half of 2023 — more than 20% of all global venture capital investments — and companies from seedstage startups to tech giants are developing new applications of the technology.
But while LLMs are incredibly powerful, their ability to generate humanlike text can invite us to falsely credit them with other human capabilities, leading to misapplications of the technology. With a deeper understanding of how LLMs work and their fundamental limitations, managers can make more informed decisions about how LLMs are used in their organizations, addressing their shortcomings with a mix of complementary technologies and human governance.
The Mechanics of LLMs
An LLM is fundamentally a machine learning model designed to predict the next element in a sequence of words. Earlier, more rudimentary language models operated sequentially, drawing from a probability distribution of words within their training data to predict the next word in a sequence. (Think of your smartphone keyboard suggesting the next word in a text message.) However, these models lack the ability to consider the larger context in which a word appears and its multiple meanings and associations.
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