# Source Model, Attribution and License

## Official source

This MLX release is derived from the official Mistral AI model:

- Publisher: Mistral AI
- Repository: `mistralai/Shieldstral-1.0-3B`
- Source revision used for this conversion: `b6073e818d5d119c772e44b84372b62bd51c2a00`
- Technical report: `arXiv:2607.25857`
- License: Apache-2.0

The upstream model card describes Shieldstral as a 3B-parameter, policy-adaptive multimodal safety classifier built on Ministral 3 with a Pixtral vision encoder. It supports text, images and combined text-image moderation.

## Derivative release

This repository contains a 4-bit MLX-VLM conversion prepared and validated independently by AXONVERTEX AI for Apple Silicon deployment. It is not an official Mistral AI artifact.

The conversion changes the numerical representation and runtime format. It does not claim authorship of the original architecture, model weights, training procedure, datasets, benchmarks, model card or technical report.

## License files

The root `LICENSE` file preserves the Apache License 2.0 terms. Users must also review the upstream model card and any applicable third-party rights before deployment.

## Citation

When publishing results based on this artifact, cite both:

1. the official Mistral AI Shieldstral model and technical report;
2. this MLX conversion repository and its exact revision.

## Reproducibility record

The release contains:

- `conversion_metadata.json` for conversion settings and software versions;
- `reports/source_revision.json` for upstream provenance;
- `reports/convert-4bit.log` for measured conversion resource use;
- `SHA256SUMS` for release-file integrity.