Glossary/Prompt Engineering
AI & Machine Learning
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What is Prompt Engineering?

Prompt engineering is the practice of crafting inputs (prompts) to AI language models to elicit desired outputs. It encompasses techniques like few-shot learning, chain-of-thought reasoning, system prompts, and structured output formatting.

Effective prompt engineering can dramatically improve AI output quality and reduce costs. A well-crafted prompt can reduce token usage by 50-80% while improving accuracy, directly impacting the unit economics of AI features.

As AI models become more capable, prompt engineering is evolving from a technical skill to a strategic capability. In 2026, 'prompt engineer' has become an established role, though many predict it will be absorbed into product management and engineering as AI literacy becomes universal.

Why It Matters

Prompt engineering directly impacts AI costs and quality. Poor prompts waste tokens and produce unreliable outputs. Good prompts reduce costs, improve accuracy, and make AI features economically viable.

Frequently Asked Questions

What is prompt engineering?

Prompt engineering is designing inputs to AI models to get the best possible outputs. It includes techniques like providing examples, specifying output format, and using chain-of-thought reasoning.

Is prompt engineering a real job?

Yes. In 2026, prompt engineering is an established role at many companies, though the skills are increasingly expected of all product managers and engineers working with AI.

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Richard Ewing is a Product Economist and AI Capital Auditor. He helps companies translate technical complexity into financial clarity.

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