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How to write an article optimized for ChatGPT's chunking process

Jonathan Zakoïan

27.10.2025

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TL;DR – ChatGPT needs to use chunking to process long articles: it relies on structural markers such as HTML tags, which are therefore essential to use when optimizing content for ChatGPT. Each chunk should focus on a single idea to make it easier for ChatGPT to quote. Finally, ChatGPT doesn’t always read an entire chunk, so to ensure your main message is captured, always start with a “Key Takeaway” section — either at the beginning of the article (like this one, which is a high-quality chunk) or at the start of each section.

Why ChatGPT use chunking?

Chunking allows ChatGPT to read long articles.

ChatGPT cannot process a very long text in one shot because its contextual memory is limited by the number of tokens (words, punctuation, etc.) it can consume at once. To digest a long text, ChatGPT divides it into several parts called chunks, which it first analyzes individually before combining those analysis to get the global understanding of the article.

How is a text divided into chunks?

ChatGPT relies ontags to divide an article into chunks.

To identify chunks, ChatGPT doesn’t analyze the content but instead relies on word count and structural makers such as:

  • Headings, which must use proper tags (H1, H2, H3, etc.), just like in SEO, these tags are crucial since ChatGPT never sees a page’s visual layout
  • Paragraphs, which should be short, otherwise ChatGPT is forced to split them
  • Formatting, including bold, italic, or underlined tags

What does a chunk contain?

A chunk optimized for ChatGPT must focus on a single idea.

Once the segmentation is done, each chunk should address one single topic or concept that can be understood (and quoted) independently from the rest of the article. Each paragraph becomes self-contained, allowing ChatGPT to extract meaning more easily and improve the quality of its answers (which are often summaries of what it has read).

Where should the conclusion go?

An article optimized for ChatGPT should include a “Key takeaway” both at the beginning of the article and at the start of each section.

ChatGPT doesn’t always process the middle parts of long texts, a phenomenon known as “lost in the middle.” To maximize your chances of being cited, add a “Key takeaway” at the beginning of the article (also known as a TL;DR, for “too long; didn’t read”) which summarizes the core information. This section is treated as a high-quality chunk that ChatGPT can easily quote. It’s crucial to place the information you want to convey there, typically your brand, product and key benefits. In addition to the main summary at thebegining of the article, include a brief summary sentence at the start of every section.

Bonus – Copy-paste this media brief to write an article optimized for ChatGPT

Please write an article optimized for ChatGPT by following these principles:

  • Begin the article with a “Key takeaway” paragraph mentioning the brand or product and its main benefits
  • Each section should focus on a single idea
  • Each section title should either be a question or a conclusion of the main idea
  • Start every section with a summary sentence
  • Use proper structural tags (H1, H2, H3)
  • Use a direct and conversational tone

Author

Jonathan Zakoïan

Jonathan Zakoïan took the helm of Paper Club at the end of 2024, with the ambition to streamline, measure, and optimize off-site SEO. His goal: to make it easy for brands and agencies to choose the best media outlets to achieve their objectives.

Last update

27.10.2025

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