What is LLMSTXT and How Is It Used?

Artificial intelligence and large language models (LLM – Large Language Models) have become one of the most discussed areas of technology in recent years. To improve the development, management, and efficiency of these models, many new structures and file types have emerged. The llms.txt file is one of the most notable among them.

What is LLMS.txt?

llms.txt is a text-based configuration file used in applications or systems that work with large language models (LLMs). It contains essential information such as the model’s usage, configuration, licensing details, and usage notes.Although it is a simple text file, its contents provide guiding information about the purpose of the model and how it should be used.

It is typically placed in the same directory as model files and serves as a standard reference and guidance tool, especially in open-source LLM projects.

When Did LLMS.txt Emerge?

The LLMS.txt standard is a relatively new development. It was proposed by Jeremy Howard in September 2024, arising from the inadequacy of traditional web standards for AI systems.
Rapid advances in AI technology and the challenges faced by large language models in processing web content led to the creation of this new format.

Example llms.txt File

What Is LLMS.txt Used For?

LLMS.txt provides numerous benefits for both developers and end users. The table below summarizes the main purposes of the LLMS.txt file:

File Format and Structure of LLMS.txt

The LLMS.txt file should be in plain text format and include the following core components:

Differences Between llms.txt, robots.txt, and sitemap.xml

Common Use Cases for LLMS.txt

The llms.txt file is a valuable tool that makes your website more visible and accessible in the age of artificial intelligence. When created and managed correctly, it can increase organic traffic and improve user experience.

Websites that adopt this technology early gain a significant competitive advantage.

• E-commerce platforms: Can include product categories, brand information, and key page structures. This enables AI systems to recommend products more effectively when responding to customer queries.

• Blogs: Can list main categories, popular posts, and author details, helping LLMs understand and retrieve blog content.

• Corporate websites: Can include services, contact information, and basic company details to increase visibility on AI platforms.

In essence, llms.txt acts as a new kind of “sitemap for AI”, allowing large language models to explore and understand site content without traditional crawling limitations.

Is LLMS.txt Mandatory?

Currently, the LLMS.txt file is not mandatory. However, if you want AI systems to better understand your website, it is highly recommended. In the future, this file may become a standard requirement.

How Often Should LLMS.txt Be Updated?

It is recommended to update the llms.txt file whenever important changes are made to your website. For example:

• When adding new pages

• When changing main categories

• When making major changes to the site structure

Regular updates ensure that AI systems always have access to the latest and most accurate information about your website.