How Do You Create ChatGPT’s “GPTs”? — How to Build Your Own AI and Examples of How to Use It

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“I heard you can create your own AI with ChatGPT, but how do you do it?”

For anyone wondering this, this article provides a simple and practical guide on how to create ChatGPT’s ‘GPTs (Custom GPTs)’.

✅ What You’ll Learn in This Article

• What are GPTs?
• Steps to Create One (Anyone Can Do It)
• What Can You Do With One?
• 5 Practical Use Cases

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Feature and specification statements were checked on July 31, 2026 against null. The article distinguishes what the official source confirms from editorial organization and recommendations.

🧠 What Are “GPTs” Anyway?

GPTs (Custom GPTs) are original versions of ChatGPT that incorporate your own instructions (custom commands) and knowledge.

• Anyone with a ChatGPT Plus (paid) subscription can create them
• No coding required. Just use the GUI (graphical user interface)
• You can create bots with specific purposes or character profiles

For example:

• “A tutor who explains things gently to children”
• “An AI that chats casually in the Kansai dialect”
• “An editor who crafts blog posts with SEO-friendly structure,” and more…

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🛠 Step-by-Step Guide (For Beginners)

1. Go to “Explore GPTs” from the ChatGPT menu

You can access it from the GPTs menu or at https://chatgpt.com/gpts.

2. Click the “Create” button

You’ll start with a guided, step-by-step process.

3. Decide on a “GPT Name” and purpose

Example:

• Name: Blog Editor-in-Chief
• Purpose: “A blog editing assistant skilled in SEO and structure”

4. Set “Personality” (character and tone)

• Examples: “Speak politely using honorifics,” “A tone that includes jokes,” etc.
• Describe in words how you want the AI to behave

5. Write Detailed Instructions in the “Instructions” Section

You can include the following:

• Output the structure of an SEO-optimized blog post in Markdown format
• Always write using the “heading + body” format
• Summarize the end of the article with “## Conclusion” and close with a horizontal line (---)
• Avoid redundant explanations; keep it concise

6. Upload knowledge via files or URLs (optional)

• Example: Your profile PDF
• You can also use internal manuals, rules, and workflows
• Can be used as “private knowledge” accessible only to you

7. Review and click “Publish” to finish!

• You can choose to make it public or private
• If you set it to private, you can use it as your own personal GPT

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💡 5 Examples of What You Can Do with GPTs

1. Article Outline Assistant

Simply provide “headings,” “SEO keywords,” and “target audience,” and it will generate an outline in Markdown format.

2. Diary Analysis Bot

Feed it your daily short diary entries, and it will analyze your emotions and trends.

3. Translation + Writing Style Conversion Bot

Translates Japanese to English and English to Japanese in a style tailored to your voice.

4. Recipe Suggestion AI (Reflecting Your Preferences)

Suggests meal plans that consistently reflect your preferences, such as “low-carb, under 15 minutes, and Japanese-style.”

5. Using Multiple GPTs as an “AI Editor-in-Chief”

• GPT for interviews
• GPT for article structure
• GPT for proofreading
  By coordinating these and others, you can build your own personal “editorial department.”

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🧭 Points to Note: What to Do in These Situations?

• If it doesn’t work as intended
  → Adjust the instructions. Write specifically what you want it to do.

• If incorrect information is included
  → Instruct it in advance: “Do not include content with unknown sources.”

• If you don’t want your work published or used by others
  → You can save it in private mode

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🔗 Deepen Your Learning with Related Articles

• 👉 I Tried Consulting an AI on a Day When I Couldn’t Get Motivated
• 👉 What Is ChatGPT’s “Memory”? An Easy-to-Understand Explanation of Its Memory Function
• 👉 Days When AI Seems Clumsy—What Are Hallucinations?

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📝 Conclusion

Before relying on a custom GPT, test it with normal cases, ambiguous requests, and a deliberately incorrect premise. Record which instruction changed each result, and recheck connected knowledge files whenever their source material changes. Keep one small regression set so later edits can be compared against the behavior you already approved.

GPTs are a system designed to evolve from “just a chat AI” into “your very own intelligent partner.”

No technical expertise is required.
Just give it a try, and you’ll see firsthand how much an “AI that works for you” can help with your daily life and work.

If you haven’t tried it yet, be sure to give “your first GPTs” a go this weekend.

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