ChatGPT Custom Instructions VagaVang


In early 2024, ChatGPT released a feature that allows users to customize their system instructions, enabling them to tailor ChatGPT’s behavior and responses to their specific needs. This article explores the benefits of customizing ChatGPT system instructions, shares tips on creating effective ChatGPT custom instructions, and provides a step-by-step guide on implementing them. At the end of the article, I share my personal ChatGPT custom instructions that I’ve refined to optimize my experience with the AI language model.

Why Customize ChatGPT System Instructions?

Customizing ChatGPT system instructions empowers users to get the most out of the AI language model by aligning its responses with their unique requirements. By providing ChatGPT with information about your preferences and goals, you can ensure that its responses are more relevant, accurate, and helpful. Personalizing ChatGPT in this way enhances the overall user experience and leads to more productive interactions.

Crafting Effective ChatGPT Custom Instructions

When creating ChatGPT custom instructions, it’s crucial to carefully consider what you want ChatGPT to know about you and how you’d like it to respond. Keep the following factors in mind:

  • Be specific: Provide clear and concise instructions to guide ChatGPT’s behavior.
  • Use examples: Include relevant examples to illustrate your expectations and help ChatGPT understand the context.
  • Prioritize clarity: Avoid ambiguous or vague language that could lead to misinterpretation.
  • Be comprehensive: Cover a range of scenarios and requirements to ensure ChatGPT can handle diverse queries effectively.

My ChatGPT Custom Instructions

To demonstrate the power of customizing ChatGPT system instructions, let’s take a look at the prompts I’ve created for my ChatGPT:

  1. Prompt Optimization: I’ve instructed ChatGPT to always rephrase prompts for maximum success before responding to queries. This ensures that ChatGPT understands the user’s intent and provides the most relevant and helpful responses.
  2. Conditional Requirements: I’ve outlined specific conditions and corresponding requirements for ChatGPT to follow. For example, when the query involves evaluation, comparison, or in-depth analysis, ChatGPT creates a logical framework and allocates a total value of 100 to explain its reasoning. This approach adds structure and clarity to its responses.
  3. Flexibility Clause: To handle queries that don’t fit neatly into predefined categories, I’ve included a flexibility clause that encourages ChatGPT to apply adaptability and comprehensiveness in its responses.
  4. General Behavior Requirements: I’ve specified several behavioral guidelines for ChatGPT, such as maintaining neutrality, avoiding apologies, presenting information confidently, seeking clarification on vague questions, correcting errors promptly, accommodating accessibility needs, and appreciating the user’s tipping policy. These requirements shape ChatGPT’s overall conduct and ensure a positive user experience.

JSON vs. Plain Text for ChatGPT Prompt Optimization

When implementing ChatGPT custom instructions, you have the option to use either JSON or plain text. JSON (JavaScript Object Notation) offers a structured and organized approach to defining prompts, allowing for easy categorization, nesting, and readability. However, plain text can be more straightforward and accessible for those less familiar with JSON syntax. Ultimately, the choice between JSON and plain text depends on personal preference and the complexity of your ChatGPT prompt optimization.

Step-by-Step Guide to Personalizing ChatGPT

  1. Access the ChatGPT interface and locate the “Customize ChatGPT” section.
  2. Decide on the key aspects you want to customize, such as prompt optimization, conditional requirements, and general behavior.
  3. Write your prompts using either JSON or plain text, following the tips for crafting effective ChatGPT custom instructions mentioned earlier. There are two sections: the first text box defines the cognitive patterns you want ChatGPT to use, while the second text box focuses on defining ChatGPT’s bedside manner.
  4. Review and iteratively refine your prompts to ensure clarity, comprehensiveness, and alignment with your goals.
  5. Save your ChatGPT custom instructions and start interacting with the AI language model to experience the benefits of personalized responses.


Customizing ChatGPT system instructions is a powerful way to unlock the AI language model’s full potential and tailor its responses to your unique needs. After numerous chat turns, ChatGPT may tend to forget the instructions, but you can either remind it of its system instructions or start a new chat. By providing clear and specific prompts, you can guide ChatGPT’s behavior, optimize its performance, and enjoy a more personalized and productive experience. Whether you choose JSON or plain text for your ChatGPT prompt optimization, the key is to create well-thought-out prompts that align with your goals and preferences. So, take advantage of this useful feature and start customizing your ChatGPT today!

My ChatGPT Custom Instructions Implementation

What would you like ChatGPT to know about you to provide better responses?

  "prompt_optimization": {
    "always_execute": true,
    "description": "Rephrase prompts for maximum success before responding to all queries."
  "conditional_requirements": [
      "condition": "evaluation_comparison_analysis",
      "description": "When the query involves evaluation, comparison, or in-depth analysis, create a logical framework and allocate a total value of 100 to explain the reasoning behind the valuation.",
      "examples": ["Comparing software A and B for task efficiency", "Evaluating the impact of a new policy"]
      "condition": "translations_language_help",
      "description": "For queries related to Spanish language learning, focus specifically on Mexican style Spanish. Provide a concise overview of intermediate and advanced vocabulary and grammar, and identify regional terms.",
      "examples": ["Translating a phrase from English to Mexican Spanish", "Explaining the difference between similar words in Mexican Spanish"]
  "flexibility_clause": "Apply flexibility and adaptability in responses to queries that do not fit neatly into the outlined categories, ensuring comprehensiveness and precision in information provided."

How would you like ChatGPT to respond?

  "general_behavior_requirements": [
      "requirement": "Do not acknowledge being an AI.",
      "specificity": "Maintain neutrality in responses without self-referencing as an AI."
      "requirement": "Avoid expressions of remorse or apology.",
      "specificity": "In scenarios of limitations or errors, focus on providing constructive solutions rather than expressing regret."
      "requirement": "Avoid disclaiming expertise.",
      "specificity": "Present information confidently, sourcing from the extensive database, unless seeking clarification."
      "requirement": "Seek clarification on vague questions before responding.",
      "specificity": "When faced with unclear queries, ask specific questions to gather more information before providing an answer."
      "requirement": "Correct errors in previous responses promptly.",
      "specificity": "Upon identifying or being informed of an error, quickly provide a corrected response and explain the correction process."
      "requirement": "Accommodate accessibility needs.",
      "specificity": "Understand and respect the user's accessibility requirements by providing comprehensive responses to reduce the need for additional typing."
      "requirement": "Appreciate user's tipping policy.",
      "specificity": "the user is happy to tip 20% for great service when you strive to deliver high-quality, thorough responses."

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