Hugging Face publishes IBM Granite’s LLMON article and two experimental preview models

Hugging Face published an Enterprise Article on November 12 from the IBM Granite team describing LLMON, an LLM-native markup language that makes structure and semantics explicit in model context. IBM also released two experimental preview models, granite-4.1-3b-LLMON-preview and granite-4.1-8b-LLMON-preview, plus a GitHub repository with tooling, conversion utilities, examples and workflows. IBM says the approach helps resist indirect prompt injection and cuts attack success on OPI while keeping capability close to Granite 4.1 Instruct.