Prompt evaluation

Prompt Engineering and Evaluation

• Prompt Engineering:
• A set of techniques used when writing or editing a prompt.
• Goal: To aid the AI (e. g. , Claude) in understanding the request and desired response format.

• Prompt Evaluation:
• The process of automatically testing a prompt.
• Goal: To obtain an objective metric that measures the prompt's effectiveness.

• Prompt Writing Process (Three Paths):
• Option 1: Test the prompt once or twice, then deploy it (Not recommended).
• Option 2: Test with custom inputs and make minor tweaks for corner cases (Better, but insufficient).
• Option 3 (Recommended): Run the prompt through an evaluation pipeline to receive an objective score, then iterate on the prompt to maximize performance.

• Key Takeaway: Relying on Options 1 or 2 is a common pitfall for engineers; comprehensive evaluation (Option 3) is highly recommended.

Takeaways

• Prompt Engineering involves using specific techniques to help AI understand requests and desired response formats.
• Prompt Evaluation is the automated process of testing a prompt to obtain an objective metric of its effectiveness.
• The recommended prompt writing process (Option 3) requires running the prompt through an evaluation pipeline to receive an objective score.
• Relying on simple testing with custom inputs (Options 1 or 2) is insufficient and a common pitfall for engineers.