---
license: apache-2.0
library_name: libreyolo
tags:
  - object-detection
  - rt-detr
  - rt-detr-v4
  - detr
---

# LibreRTDETRv4x

RT-DETRv4-X HGNetv2 COCO detector, repackaged for the [LibreYOLO](https://github.com/LibreYOLO/libreyolo) framework.

## Source

Derived from [https://github.com/RT-DETRs/RT-DETRv4](https://github.com/RT-DETRs/RT-DETRv4) at commit `43663fb103fc86a5da28806d8aeecdc707c4d6e0` and upstream checkpoint:
`https://drive.google.com/file/d/19gnkMTgFveJsrOvSmEPQXCTG6v9oQHN3`.

RT-DETRv4 is Apache-2.0 licensed. The upstream training recipe uses a DINOv3 teacher model; DINOv3 materials are not included in this repository.

## Modifications

EMA weights were unwrapped, the training-only `encoder.feature_projector.*` tensors were omitted, and the checkpoint was saved with LibreYOLO metadata schema v1.0. The inference graph uses the exported student detector weights.

## Validation

This file was validated locally with LibreYOLO checkpoint metadata schema v1.0, loaded through `LibreYOLO`, and evaluated on `coco128.yaml` with `workers=0`, `batch=8`, `conf=0.001`, `iou=0.6`.

| Metric | Value |
|---|---:|
| COCO128 mAP50-95 | 0.6678 |
| COCO128 mAP50 | 0.8514 |
| SHA256 | `b9dbf4e0b5ba40817fc5b8da09cd22567e162c0d48060fdca1f07c05991b3c9f` |
| File size | 240.4 MB |

## License

Apache License 2.0. See the [`LICENSE`](./LICENSE) and [`NOTICE`](./NOTICE) files in this repository.