OpenAI has unveiled a new prompt guide for its GPT-5.6 model, emphasizing reduced over-prompting to enhance autonomous task completion. The guide advises users to establish clear objectives and stop conditions, allowing the model to operate independently rather than relying on detailed XML code blocks and scripts. OpenAI highlights that GPT-5.6's improved ability to understand intent and plan autonomously can be hindered by excessive instructions. This approach marks a shift from the traditional "more detailed, the better" prompt engineering strategy, which has been prevalent in AI development. The guide is applicable to ChatGPT Plus and API users, reflecting OpenAI's latest advancements in large language model capabilities. Previously, prompt engineering was a critical skill, with numerous tutorials and courses teaching users to construct complex prompts for precise outputs.