IBM releases LLMON markup for Granite 4.1

13 11 2026
IBM releases LLMON markup for Granite 4.1

LLMON is a new markup language designed for LLMs, now available in Granite 4.1 3B and 8B models. It replaces JSON in prompts to reduce brittleness by using special tokens for structure instead of ambiguous characters. The release includes model weights and a toolkit with conversion scripts to migrate existing JSON pipelines.

It is worth testing if you are working with small models that struggle with complex instructions. The main catch is that the preview models are IBM-specific, meaning you cannot use the format with other open weights. Do not expect it to replace general-purpose JSON parsers in your application code.

more: https://huggingface.co/blog/ibm-granite/llmon-an-llm-native-markup-language-now-in-granite

my other side: ivo.blogspot.com


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