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--- |
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license: gemma |
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datasets: |
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- NbAiLab/aurora-sft-2512-filtered |
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language: |
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- 'no' |
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- nb |
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- nn |
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base_model: |
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- google/gemma-3-27b-it |
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pipeline_tag: image-text-to-text |
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library_name: transformers |
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tags: |
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- conversational |
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- instruct |
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- experimental |
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--- |
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# Borealis 27B Instruct (Preview) |
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Release: Jan 21st, 2026. |
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## Model summary |
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**NbAiLab/borealis-27b-instruct-preview** is a **27B-parameter** instruction-tuned **preview** model intended for early testing and feedback. It is an **experiment** and should be treated as pre-release quality. |
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This model is based on [**google/gemma-3-27b-it**](https://huggingface.co/google/gemma-3-27b-it), and fine-tuned on textual instructions only. |
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| Size | Transformers | GGUF (quants: `q8_0`, `f16`, `bf16`) | MLX | |
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|---:|---|---|---| |
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| 270M | [NbAiLab/borealis-270m-instruct-preview](https://huggingface.co/NbAiLab/borealis-270m-instruct-preview) | [NbAiLab/borealis-270m-instruct-preview-gguf](https://huggingface.co/NbAiLab/borealis-270m-instruct-preview-gguf) | [NbAiLab/borealis-270m-instruct-preview-mlx](https://huggingface.co/NbAiLab/borealis-270m-instruct-preview-mlx) (32-bit)<br>[NbAiLab/borealis-270m-instruct-preview-mlx-8bits](https://huggingface.co/NbAiLab/borealis-270m-instruct-preview-mlx-8bits) (8-bit) | |
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| 1B | [NbAiLab/borealis-1b-instruct-preview](https://huggingface.co/NbAiLab/borealis-1b-instruct-preview) | [NbAiLab/borealis-1b-instruct-preview-gguf](https://huggingface.co/NbAiLab/borealis-1b-instruct-preview-gguf) | [NbAiLab/borealis-1b-instruct-preview-mlx](https://huggingface.co/NbAiLab/borealis-1b-instruct-preview-mlx) (32-bit)<br>[NbAiLab/borealis-1b-instruct-preview-mlx-8bits](https://huggingface.co/NbAiLab/borealis-1b-instruct-preview-mlx-8bits) (8-bit) | |
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| 4B | [NbAiLab/borealis-4b-instruct-preview](https://huggingface.co/NbAiLab/borealis-4b-instruct-preview) | [NbAiLab/borealis-4b-instruct-preview-gguf](https://huggingface.co/NbAiLab/borealis-4b-instruct-preview-gguf) | [NbAiLab/borealis-4b-instruct-preview-mlx](https://huggingface.co/NbAiLab/borealis-4b-instruct-preview-mlx) (32-bit)<br>[NbAiLab/borealis-4b-instruct-preview-mlx-8bits](https://huggingface.co/NbAiLab/borealis-4b-instruct-preview-mlx-8bits) (8-bit) | |
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| 12B | [NbAiLab/borealis-12b-instruct-preview](https://huggingface.co/NbAiLab/borealis-12b-instruct-preview) | [NbAiLab/borealis-12b-instruct-preview-gguf](https://huggingface.co/NbAiLab/borealis-12b-instruct-preview-gguf) | [NbAiLab/borealis-12b-instruct-preview-mlx](https://huggingface.co/NbAiLab/borealis-12b-instruct-preview-mlx) (32-bit)<br>[NbAiLab/borealis-12b-instruct-preview-mlx-8bits](https://huggingface.co/NbAiLab/borealis-12b-instruct-preview-mlx-8bits) (8-bit) | |
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| 27B | [NbAiLab/borealis-27b-instruct-preview](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview) | [NbAiLab/borealis-27b-instruct-preview-gguf](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-gguf) | [NbAiLab/borealis-27b-instruct-preview-mlx](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-mlx) (32-bit)<br>[NbAiLab/borealis-27b-instruct-preview-mlx-8bits](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-mlx-8bits) (8-bit) | |
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## Training data |
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Supervised fine-tuning (SFT) uses **NbAiLab/aurora-sft-2512** (not released yet). |
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## ⚠️ Safety / alignment disclaimer (important) |
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This is a **preview experiment** and **has not been safety-aligned yet**. The model may produce **harmful, biased, or insensitive** outputs (including content that is offensive, unsafe, or inappropriate). Do not use it for safety-critical or high-stakes applications, and add your own safety mitigations if deploying. |
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## Intended use |
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- Norwegian-centric assistant-style tasks (e.g., drafting, summarization, Q&A, light reasoning). |
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- Assesstment of Norwegian writing style and quality. |
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- Early evaluation of behavior, language coverage (Norwegian / Bokmål / Nynorsk), and quality. |
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## Limitations |
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- Preview quality; outputs may be unstable and may hallucinate. |
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- Not aligned for safety; may follow harmful instructions or generate problematic content (see disclaimer above). |
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## Weights & formats |
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### Transformers (original) |
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- **NbAiLab/borealis-27b-instruct-preview** (safetensors). |
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### GGUF quantizations |
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Available in [**NbAiLab/borealis-27b-instruct-preview-gguf**](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-gguf): |
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- `model-q8_0.gguf` |
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- `model-f16.gguf` |
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- `model-bf16.gguf` |
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Use: |
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```bash |
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ollama run hf.co/NbAiLab/borealis-27b-instruct-preview-gguf:BF16 |
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``` |
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### MLX (Apple Silicon) |
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Available in [**NbAiLab/borealis-27b-instruct-preview-mlx**](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-mlx) and quantized to [8 bits](https://huggingface.co/NbAiLab/borealis-27b-instruct-preview-mlx-8bits). |
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Use: |
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```bash |
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# Install MLX LM |
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uv tool install mlx-lm |
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# Interactive chat REPL |
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mlx_lm.chat --model "NbAiLab/borealis-27b-instruct-preview-mlx" |
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``` |
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## Acknowledgements |
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Thanks to the **Gemma** team at Google for releasing Gemma 3 and to everyone contributing feedback on this preview. |
