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LLMON: An LLM-Native Markup Language, now in Granite 4.1 3B and 8B
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Fusion42 · 12 November 2026 · Fusion42 review
IBM introduced LLMON, an LLM-native markup language designed to provide explicit structure and semantics within large language model contexts, reducing brittleness and vulnerability to prompt injections. They released experimental Granite 4.1 models trained to work with LLMON and accompanying tooling for easier adoption.
This Wire brief sits within Fusion42's coverage of AI Infrastructure and Generative AI.
◆ ◆ The Wire takeaway
Your LLM-based applications can now handle instructions and data more reliably with LLMON, cutting prompt injection risks sharply and improving output accuracy. Experiment this week with Granite 4.1 LLMON models and tooling to make your prompts more explicit and robust.
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1 source · 12 Nov 2026
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