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axolotl/examples/devstral/README.md
NanoCode012 8c6a6ea6eb Feat: add devstral model support (#2880) [skip ci]
* fix: do not add training and training_detail block by default

* fixed: magistral docs

* fix: address pad adding new fields and use built-in from_openai

* feat: try enable multiprocessing

* fix: check for keys before deleting attn_mask

* feat: add mistral pad test

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* chore: update magistral doc

* feat: add devstral readme and example

* chore: refactor error handling
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# Finetune Devstral with Axolotl
Devstral Small is a 24B parameter opensource model from MistralAI found on HuggingFace [Devstral-Small-2505](https://huggingface.co/mistralai/Devstral-Small-2505). This guide shows how to fine-tune it with Axolotl with multi-turn conversations with proper masking.
The model was fine-tuned ontop of [Mistral-Small-3.1](https://huggingface.co/mistralai/Mistral-Small-3.1-24B-Base-2503) without the vision layer and has a context of upto 128k tokens.
## Getting started
1. Install Axolotl following the [installation guide](https://docs.axolotl.ai/docs/installation.html). You need to install from main as Devstral is only on nightly or use our latest [Docker images](https://docs.axolotl.ai/docs/docker.html).
Here is an example of how to install from main for pip:
```bash
# Ensure you have Pytorch installed (Pytorch 2.6.0+)
git clone https://github.com/axolotl-ai-cloud/axolotl.git
cd axolotl
pip3 install packaging==23.2 setuptools==75.8.0 wheel ninja
pip3 install --no-build-isolation -e '.[flash-attn]'
# Install the latest mistral-common from source
pip3 uninstall mistral-common
pip3 install git+https://github.com/mistralai/mistral-common.git@039465d
```
2. Run the finetuning example:
```bash
axolotl train examples/devstral/devstral-small-qlora.yml
```
This config uses about 21GB VRAM.
Let us know how it goes. Happy finetuning! 🚀
### TIPS
- You can run a full finetuning by removing the `adapter: qlora` and `load_in_4bit: true` from the config.
- Read more on how to load your own dataset at [docs](https://docs.axolotl.ai/docs/dataset_loading.html).
- The dataset format follows the OpenAI Messages format as seen [here](https://docs.axolotl.ai/docs/dataset-formats/conversation.html#chat_template).
## Optimization Guides
- [Multi-GPU Training](https://docs.axolotl.ai/docs/multi-gpu.html)
- [Multi-Node Training](https://docs.axolotl.ai/docs/multi-node.html)
- [LoRA Optimizations](https://docs.axolotl.ai/docs/lora_optims.html)
- [Cut Cross Entropy](https://docs.axolotl.ai/docs/custom_integrations.html#cut-cross-entropy)
- [Liger Kernel](https://docs.axolotl.ai/docs/custom_integrations.html#liger-kernels)
## Limitations
We only support the `mistral-common` tokenizer for Supervised Fine-tuning at the moment and for `type: chat_template` only.
In addition, we do not support overriding tokens yet.
## Related Resources
- [MistralAI Devstral Blog](https://mistral.ai/news/devstral)
- [Axolotl Docs](https://docs.axolotl.ai)
- [Axolotl GitHub](https://github.com/axolotl-ai-cloud/axolotl)
- [Axolotl Website](https://axolotl.ai)
- [Axolotl Discord](https://discord.gg/7m9sfhzaf3)
## Future Work
- Add parity to Preference Tuning, RL, Multi-modal, etc.
- Add parity to other tokenizer configs like overriding tokens.