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2025
 
Jul
 
28
 

What is ChatGPT? A Beginner-Friendly Guide to How It Works, What It Can Do, and How to Use It

In recent years, AI that can generate text and images—known as generative AI—has been attracting attention worldwide. Among the many tools available, one of the most widely used by both individuals and businesses is ChatGPT, developed by OpenAI. You may have heard the name "ChatGPT," but still feel unsure about what it actually is or what it can do. This article aims to explain the basics of ChatGPT in an easy-to-understand way for beginners. We'll cover how it works, what it's capable of, and how you can apply it in your daily life and work.

Asuka Inoda

What is ChatGPT?

ChatGPT is a conversational generative AI service developed by the American company OpenAI. When users enter a question or instruction—called a prompt—ChatGPT generates a natural-sounding response, almost as if you were speaking to a real person.

Why is it capable of such natural communication? The reason is that ChatGPT has learned language patterns and structures by training on massive amounts of text data from the internet.

The name “GPT” stands for Generative Pre-trained Transformer. This means it’s a pre-trained AI model capable of generating content based on the patterns it has learned.

Since its launch in November 2022, ChatGPT gained over 100 million users worldwide in just two months, and that number continues to grow.

How Does ChatGPT Work?

Here’s a simplified overview of how ChatGPT generates responses:

  1. Prompt Tokenization
    Your input is broken down into smaller units called “tokens” (which are typically words or sub-words) that the AI can process.
  2. Understanding Sentence Structure and Context
    The AI analyzes the tokenized input using the massive amount of language knowledge it has learned. It also considers the context of the ongoing conversation.
  3. Generating Response Tokens
    Based on the context, the AI predicts the most likely next token (word or phrase) using statistical models and probability.
  4. Building the Final Response
    These tokens are then assembled into a coherent, human-readable sentence or paragraph.

In this way, ChatGPT generates accurate and context-aware responses through a complex multi-step process.

What Can You Do with ChatGPT?

Thanks to its versatility, ChatGPT can be used in a wide variety of situations—from business to personal use.

Here are some of the most common use cases:

  • Writing Assistance
    Quickly generate drafts for emails, reports, articles, and more.
  • Information Gathering
    Efficiently collect information on specific topics (Note: always verify facts, especially for technical or time-sensitive information).
  • Brainstorming Ideas
    Come up with slogans, product names, business concepts, and more.
  • Translation
    Translate between languages such as English and Japanese.
  • Text Transformation & Summarization
    Summarize long texts, rewrite casual text into formal language, and more.
  • Basic Programming Support
    Generate code snippets or assist with simple programming tasks.
  • Image Generation
    Collaborate with image-generation tools like DALL·E 3 to create visuals based on your input.

How Much Does ChatGPT Cost?

As of June 2025, ChatGPT offers a free plan and two paid plans:

PlanPriceFeatures

Free Plan :

$0

Access to basic features with some limitations on performance and access time.

ChatGPT Plus :

$20/month

Priority access to high-performance models and early access to new features.

ChatGPT Pro :

$200/month

Offers nearly unlimited access and advanced capabilities for professional users.

We recommend starting with the free version and upgrading if you find yourself needing more advanced features.

Important Notes on Using ChatGPT

While ChatGPT is powerful, there are several precautions you should take when using it:

  • Information Accuracy
    The answers generated may not always be correct. Be especially careful with current events or highly technical topics.
  • Copyright Risks
    Since the AI is trained on existing data, generated content may unintentionally resemble copyrighted material.
  • Detection Risks
    Using ChatGPT-generated responses in school assignments or sensitive business scenarios could lead to detection or questions about authenticity.
  • Data Privacy
    Avoid inputting confidential or personal information. There's a risk that the data could be used in future outputs unless appropriate settings are applied.

Understanding these risks and using the tool wisely is essential.

ChatGPT and the Future of Work

With the rise of ChatGPT, the way we work is rapidly evolving. Some may worry that AI will replace jobs, but it's more accurate to say that it changes how we work.

ChatGPT is a tool—it still relies on humans to guide it, verify its output, and apply it effectively. Tasks involving communication, teamwork, and creative judgment remain firmly in the human domain.

Those who can use ChatGPT skillfully will become increasingly valuable in the job market. Mastering this tool can lead to greater productivity and innovation in your work.

Conclusion

Here’s what we covered in this article:

  • ChatGPT is a conversational AI developed by OpenAI.
  • It generates natural language responses by learning from large amounts of internet data.
  • It can assist with writing, research, idea generation, translation, programming, and more.
  • It offers free and paid plans based on your usage needs.
  • Users should be aware of potential risks, including incorrect information and privacy issues.
  • Learning to use ChatGPT effectively is becoming an essential skill in the modern workforce.

By mastering ChatGPT, you can streamline your work and learning processes. Use this article as a starting point and embrace a more efficient and future-ready way of working.

Learn AI and No-Code Tools with Supasaito Academy

To thrive in the AI era, you need more than just awareness—you need practical skills to use tools like ChatGPT. But AI evolves fast, and keeping up on your own can be tough.

That’s where Supasaito Academy, operated by Supasaito Inc., comes in. It’s a learning platform where you can master not only AI tools like ChatGPT but also no-code development that lets you build websites without needing to know how to code.

Both AI and no-code skills are essential for boosting efficiency and unlocking new business opportunities. With expert instructors and hands-on learning, even those without a tech background can feel confident.

Want to future-proof your career with practical digital skills?

Visit the official website for more details about Supasaito Academy.

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