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Aug 7, 2026 · Artificial Intelligence

Why Shorter Prompts Work Better: Lessons from OpenAI’s GPT‑5.6 Guide

OpenAI’s GPT‑5.6 prompt guide shows that trimming prompts can boost evaluation scores by 10‑15%, cut token usage by 41‑66%, and reduce costs, while also improving agent behavior by removing redundant instructions, clarifying autonomy rules, and focusing on concise, actionable prompts.