| # Licensing — marvy-1-14B |
|
|
| marvy-1-14B uses a **layered (dual) license** that reflects what is built on top |
| of an upstream open model versus what MainStack authored. |
|
|
| | Component | License | What it covers | |
| |---|---|---| |
| | **Model weights** (`*.safetensors`, GGUF quants, LoRA adapter) | **Apache-2.0** | The fine-tuned weights. These are a derivative of Qwen2.5-14B-Instruct (Apache-2.0); per that license they remain Apache-2.0 and free to use, modify, and redistribute. | |
| | **MainStack original contributions** | **CC-BY-4.0** | The model cards, documentation (`USAGE.md`, `VALIDATION.md`, benchmark), the benchmark charts, the curated training-data methodology, and the pipeline framing authored by MainStack. | |
|
|
| ## What this means in practice |
|
|
| ### You may (under Apache-2.0, for the weights) |
| - Use marvy-1-14B commercially, privately, or in research. |
| - Fine-tune, distill, quantize, merge, or otherwise build on the weights. |
| - Redistribute the weights, including modified versions. |
|
|
| …provided you **retain the `NOTICE` file** in derivatives and redistributions |
| (Apache-2.0 §4(d) — this is mandatory and carries the attribution request). |
|
|
| ### You must (under CC-BY-4.0, for our contributions) |
| If you reuse MainStack's **documentation, model cards, benchmark, or charts** — |
| e.g. copying our eval methodology, reproducing our charts, or lifting card text |
| into your own model — you must give **attribution**: credit "MainStack" and link |
| to https://huggingface.co/MainStack/marvy-1-14B. This is a binding condition of |
| CC-BY-4.0, not just a request. |
|
|
| ### We ask (attribution for the model) |
| If you use marvy-1-14B **as a baseline, a starting point for your own fine-tune, |
| a distillation source, or an evaluation comparison**, please credit MainStack |
| and cite the entry in the model card. See `NOTICE` and the card's Citation |
| section. |
|
|
| ## Why the weights can't be more restricted |
|
|
| Qwen2.5-14B-Instruct is released under Apache-2.0, which grants every recipient |
| an irrevocable, royalty-free right to use and redistribute. A fine-tune cannot |
| revoke those rights on the resulting weights. MainStack's protection therefore |
| lives where it legally can: (1) the CC-BY-4.0 license on our **own** authored |
| materials, and (2) the Apache-2.0 **NOTICE** that must travel with the weights. |
|
|
| ## Files |
| - `LICENSE` — Apache-2.0 (governs the weights; inherited from the base model). |
| - `LICENSE-CC-BY-4.0` — CC-BY-4.0 (governs MainStack's documentation and other |
| original contributions). |
| - `NOTICE` — required attribution notices (retain in derivatives). |
| - `CITATION.cff` — citation metadata. |
|
|
