The rapid advancement of artificial intelligence (AI) technology has placed higher demands on prompt engineering. AIbase learned from social media that OpenAI recently released a prompt engineering guide for GPT-4.1, detailing how to maximize model performance through clear and precise prompts. This guide not only continues traditional best practices but also provides optimized suggestions for the unique characteristics of GPT-4.1. Below is AIbase's in-depth analysis of this guide, guiding you through its core content and industry significance.

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GPT-4.1 Features: Stricter Instruction Following

OpenAI states in the guide that GPT-4.1 exhibits stricter and more literal instruction following. Compared to its predecessor, GPT-4, it is more inclined to directly execute explicit instructions in the prompt rather than inferring user intent. Social media feedback shows that this feature makes GPT-4.1 extremely sensitive to clear and specific prompts. If the model output deviates from expectations, developers typically only need to add a concise explanation to quickly guide the model back on track.

AIbase analysis shows that this design significantly improves the controllability and reliability of GPT-4.1, making it particularly suitable for scenarios requiring high-precision output, such as code generation, data analysis, and automated agents. However, developers need to adjust their existing prompting strategies for GPT-4 to adapt to the literal nature of GPT-4.1.

Prompt Engineering Guide: From Basic to Advanced

OpenAI's prompt engineering guide provides comprehensive guidance for developers, covering basic principles and advanced strategies to help users efficiently construct prompts. Here are the core points of the guide:

Clarity and Context: Prompts should be clear and specific, containing sufficient context. Short prompts are feasible, but adding examples and target descriptions can significantly improve output quality. Developers should check for conflicting or ambiguous instructions in the prompt, ensuring consistency between rules and examples.

Planning and Reflection: Inducing the model to generate explicit step-by-step plans (e.g., "List the steps to solve the problem") through prompts can improve the completion rate of complex tasks. For example, in the SWE-bench Verified test, explicit planning prompts increased the pass rate by 4%.

Tool Call Optimization: GPT-4.1 is specifically trained to utilize the tools field in the API more efficiently. Developers should avoid manually injecting tool descriptions but instead use standardized tool call interfaces to implement functions, reducing parsing complexity.

Structured Output: XML or GDM formats are recommended over JSON to improve output stability and parsability. Additionally, the guide suggests placing key instructions at the top and bottom of the prompt to reinforce consistent model execution.

On social media, developers have expressed approval of the practicality of these strategies, especially when building AI agents, where clear prompt design significantly improves the model's "proactiveness" and task completion rate.

Differences from Previous Models: From Inference to Precision

Compared to GPT-4, GPT-4.1's instruction following has fundamentally changed. GPT-4 tends to freely infer user intent; even if the prompt is not precise, it may "guess" the requirements through context. GPT-4.1, however, acts more like a "strict executor," requiring developers to provide clear and unambiguous instructions. AIbase notes that this shift may impact existing workflows, and developers need to review and migrate their existing prompt templates to fully leverage the potential of GPT-4.1.

For example, the guide recommends avoiding vague incentivizing language (such as all capitals or "must") and instead reinforcing instructions through specific examples and rules. AIbase believes this change reflects OpenAI's continued optimization of model controllability and consistency.

Industry Impact: Empowering the Developer Ecosystem

The release of the GPT-4.1 prompt engineering guide provides developers with practical tools to better handle the literal nature of the model. AIbase has observed that developers on social media have begun sharing optimized prompt examples based on the guide, such as improving code debugging efficiency through step-by-step planning or simplifying data extraction processes through structured output.

At the industry level, the release of the guide further solidifies OpenAI's leadership position in the AI development ecosystem. Compared to other models (such as Google Gemini or Anthropic Claude), GPT-4.1's million-token context window and precise instruction following capabilities provide greater scope for complex tasks. AIbase predicts that the guide will drive more companies to adopt GPT-4.1 for developing intelligent applications, especially in programming, automation, and knowledge management.

Future Outlook: The Continued Evolution of Prompt Engineering

OpenAI emphasizes that prompt engineering is an experience-driven discipline that requires developers to repeatedly test and iterate to optimize prompt effectiveness. AI-driven IDEs (such as Cursor) mentioned in the guide can assist developers in checking prompt consistency, indicating a trend towards the toolisation of prompt engineering. AIbase believes that prompt engineering may be further integrated into the development process in the future, becoming a standard part of AI application development.

On social media, users expect OpenAI to continue updating the guide to include more multimodal prompting strategies (e.g., image or video processing). AIbase will continue to monitor the progress of the GPT-4.1 ecosystem and look forward to further breakthroughs in its practical applications.

Precise Prompts Unleash the Potential of GPT-4.1

OpenAI's GPT-4.1 prompt engineering guide provides developers with comprehensive support from theory to practice, helping them precisely harness the model's powerful capabilities. Through clear instructions, step-by-step planning, and structured output, GPT-4.1 is reshaping the boundaries of AI interaction. AIbase believes that this guide will become a cornerstone for developers building efficient AI applications, ushering in a new chapter in intelligent development.

Official Guide: https://github.com/openai/openai-cookbook/blob/main/examples/gpt4-1_prompting_guide.ipynb