Everyone using AI professionally quickly learns that the quality of the output depends heavily on what you provide as input. The discipline of prompt engineering has arisen as a set of best practices for improving the reliability, efficiency, and accuracy of AI models. “In ten years, half of the world’s jobs will be in prompt engineering,” claims Robin Li, the cofounder and CEO of Chinese tech giant Baidu. However, we expect prompting to be a skill required of many jobs, akin to proficiency in Microsoft Excel, rather than a popular job title in itself. This new wave of disruption is changing everything we thought we knew about computers. We’re used to writing algorithms that return the same result every time—not so for AI, where the responses are non-deterministic. Cost and latency are real factors again, after decades of Moore’s law making us complacent in expecting real-time computation at negligible cost. The biggest hurdle is the tendency of these models to confidently make things up, dubbed hallucination, causing us to rethink the way we evaluate the accuracy of our work.
We’ve been working with generative AI since the GPT-3 beta in 2020, and as we saw the models progress, many early prompting tricks and hacks became no longer necessary. Over time a consistent set of principles emerged that were still useful with the newer models, and worked across both text and image generation. We have written this book based on these timeless principles, helping you learn transferable skills that will continue to be useful no matter what happens with AI over the next five years. The key to working with AI isn’t “figuring out how to hack the prompt by adding one magic word to the end that changes everything else,” as OpenAI cofounder Sam Altman asserts, but what will always matter is the “quality of ideas and the understanding of what you want.” While we don’t know if we’ll call it “prompt engineering” in five years, working effectively with generative AI will only become more important.
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