LLMON: An LLM-native Markup Language to Leverage Structure and Semantics at the LLM Interface

📰 ArXiv cs.AI

LLMON is a markup language designed to leverage structure and semantics at the LLM interface

advanced Published 25 Mar 2026
Action Steps
  1. Define the structure and semantics of the input data using LLMON markup language
  2. Use LLMON to distinguish between instructions and data in prompts
  3. Pass the marked-up input to the LLM to leverage its structured and semantic understanding
  4. Evaluate the performance of the LLM with LLMON markup language and refine its usage as needed
Who Needs to Know This

AI engineers and researchers working with LLMs can benefit from LLMON as it provides a more structured and semantic way of interacting with LLMs, enabling more effective and efficient use of these models

Key Insight

💡 LLMON enables more effective and efficient use of LLMs by providing a structured and semantic way of interacting with them

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🚀 Introducing LLMON, a markup language for LLMs to leverage structure and semantics!

Key Takeaways

LLMON is a markup language designed to leverage structure and semantics at the LLM interface

Full Article

Title: LLMON: An LLM-native Markup Language to Leverage Structure and Semantics at the LLM Interface

Abstract:
arXiv:2603.22519v1 Announce Type: cross Abstract: Textual Large Language Models (LLMs) provide a simple and familiar interface: a string of text is used for both input and output. However, the information conveyed to an LLM often has a richer structure and semantics, which is not conveyed in a string. For example, most prompts contain both instructions ("Summarize this paper into a paragraph") and data (the paper to summarize), but these are usually not distinguished when passed to the model. Th
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