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Prompt engineering: Cut bloated few-shot examples to save tokens

Prompt engineering guides often overlook a critical issue: the bloat of few-shot examples in LLM prompts. Over time, these examples accumulate due to bug fixes and edge case handling, increasing token costs without a corresponding accuracy gain. A proposed solution involves using a leave-one-out ablation test, similar to feature selection in machine learning, to systematically remove examples and measure their impact on performance. This rigorous testing can identify and eliminate non-essential examples, optimizing prompt efficiency and reducing operational expenses. AI

Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →

IMPACT Optimizing prompt examples can significantly reduce operational costs for LLM applications.

RANK_REASON The article discusses a technique for optimizing LLM prompts, which is commentary on best practices rather than a new release or research finding.

Read on dev.to — LLM tag →

Prompt engineering: Cut bloated few-shot examples to save tokens

COVERAGE [1]

  1. dev.to — LLM tag TIER_1 · Gabriel Anhaia ·

    Few-Shot Examples Are Eating Your Tokens. Here's the Cull Test.

    <ul> <li> <strong>Book:</strong> <a href="https://www.amazon.com/dp/B0GX38N645" rel="noopener noreferrer">Prompt Engineering Pocket Guide: Techniques for Getting the Most from LLMs</a> </li> <li> <strong>Also by me:</strong> <em>Thinking in Go</em> (2-book series) — <a href="http…