[!NOTE] This repository contains models that have been converted to the GGUF format with various quantizations from an IBM Granite base model.
Please reference the base model's full model card here: https://huggingface.co/ibm-granite/granite-guardian-4.1-8b
Granite Guardian 4.1 8B (GGUF)
Model Summary
Granite Guardian 4.1 8B is a specialized safety model fine-tuned from ibm-granite/granite-4.1-8b, designed to judge if the input prompts and the output responses of an LLM-based system meet specified criteria. The model comes pre-baked with certain criteria including but not limited to: jailbreak attempts, profanity, and hallucinations related to tool calls and retrieval augmented generation in agent-based systems. Additionally, the model also allows users to bring their own criteria and tailor the judging behavior to specific use cases.
This version of Granite Guardian is a hybrid thinking model that allows the user to operate in thinking or non-thinking mode.
In thinking mode, the model produces detailed reasoning traces through <think> ... </think> and <score> ... </score> tags.
In non-thinking mode, the model only produces the judgement score through the <score> ... </score> tags.
It is trained on unique data comprising human annotations and synthetic data informed by internal red-teaming. It outperforms other open-source models in the same space on standard benchmarks.
- Developers: IBM Research
- GitHub Repository: ibm-granite/granite-guardian
- Cookbook: Granite Guardian Recipes
- Website: Granite Guardian Docs
- Paper: Granite Guardian
- Release Date: April, 2026
- License: Apache 2.0