Quick Answer
Examples are useful when the output needs a specific structure, tone, or decision rule. A good example shows the pattern you want the model to follow while making clear what should change for the current task.
Use this guide when
The reader wants to use few-shot examples effectively.
Working Method
The practical move is to make the model's job visible. Before you ask for the final output, define the important choices you do not want the model to guess.
- Use one example for simple style guidance and two or three when the task has edge cases.
- Label examples as examples so the model knows not to treat them as the current input.
- Choose examples that demonstrate the rule, not just the easiest case.
- Add a sentence explaining what the examples are meant to teach.
- If privacy matters, rewrite examples with safe fictional details before using them.
Prompt Example
Too vague
Write product release notes like the example below.
More useful
Use the examples below only to match structure and level of detail. For the new release notes, do not copy product names, dates, claims, or metrics from the examples. Keep the same sections: What changed, Why it matters, Who should act, and Known limits.
Common Pitfalls
- Providing examples that conflict with the written instruction.
- Using examples that contain private or customer-identifying information.
- Giving only perfect cases when the real task includes messy inputs.
How to Judge the Answer
A better prompt is only useful if the answer becomes easier to evaluate. Before using the response, check whether it meets the standard you set.
- The model follows the pattern without reusing irrelevant facts.
- Edge cases are handled consistently.
- The output remains appropriate for the current audience.
FAQ
Are more examples always better?
No. More examples can help complex tasks, but they can also distract the model or make the prompt harder to maintain.
Can examples replace instructions?
Usually not. Examples show a pattern; instructions explain the rule and priority behind the pattern.
Sources
Selected references that informed this guide:
- Best practices for prompt engineering with the OpenAI API OpenAI Help Center
- Prompt engineering overview Anthropic
- Overview of prompting strategies Google Cloud