granite-4.1

About

What granite-4.1 is

[](https://mot.isitopen.ai/model/1160) Granite-4.1-8B Model Summary: Granite-4.1-8B is a 8B parameter long-context instruct model finetuned from Granite-4.1-8B-Base using a combination of open source instruction datasets with permissive license and internally collected synthetic datasets. Granite 4.1 models have gone through an improved post-training pipeline, including supervised finetuning and reinforcement learning alignment, resulting in enhanced tool calling, instruction following, and chat capabilities. - Developers: Granite Team, IBM - HF Collection: Granite 4.1 Language Models HF Collection - Technical Blog: Granite-4.1 Blog - GitHub Repository: ibm-granite/granite-4.1-language-models - Website: Granite Docs - Release Date: April 29th, 2026 - License: Apache 2.0 Supported Languages: English, German, Spanish, French, Japanese, Portuguese, Arabic, Czech, Italian, Korean, Dutch, and Chinese. Users may finetune Granite 4.1 models for languages beyond these languages. Intended use: The model is designed to follow general instructions and can serve as the foundation for AI assistants across diverse domains, including business applications, as well as for LLM agents equipped with tool-use capabilities. Capabilities Summarization Text classification Text extraction Question-answering Retrieval Augmented Generation (RAG) Code related tasks Function-calling tasks Multilingual dialog use cases Fill-In-the-Middle (FIM) code completions -- Generation: This is a simple example of how to use Granite-4.1-8B model. Install the following libraries: Then, copy the snippet from the section that is relevant for your use case. Expected output: Tool-calling: Granite-4.1-8B comes with enhanced tool calling capabilities, enabling seamless integration with external functions and APIs. To define a list of tools please follow OpenAI's function definition schema. This is an example of how to use Granite-4.1-8B model tool-calling ability: Expected output: Coming soon -- Evaluation Results: General Tasks Alignment Tasks Math Tasks Code Tasks Tool Calling Tasks Multilingual Tasks Safety Model Architecture: Granite-4.1-8B baseline is built on a decoder-only dense transformer architectur

Summarised from the published model card. Read the full card on the HuggingFace links below.

Specifications

What it is

How it works

How language models work

Variants

Sizes & precisions

Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys granite-4-1 for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (granite-4-1 below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/chat/completions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"granite-4-1","messages":[{"role":"user","content":"Hello"}]}'

Details

Languages, data & research

Papers

Licence

Open weights

Sources

Weights & code

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