---
license: apache-2.0
base_model: answerdotai/ModernBERT-base
tags:
  - security
  - cybersecurity
  - lunaris-sentinel
  - multi-task
pipeline_tag: text-classification
---

# Lunaris Sentinel

Official **Lunaris Sentinel** multi-task security encoder (Auren Research).

Fine-tuned from [answerdotai/ModernBERT-base](https://huggingface.co/answerdotai/ModernBERT-base) on
[auren-research/astraea-unified-threat](https://huggingface.co/datasets/auren-research/astraea-unified-threat).

## Heads

| Head | Task |
|------|------|
| `cls_head` | Malicious / benign (log_classification, phishing) |
| `mitre_head` | MITRE technique classification (791 classes) |
| `ner_head` | IOC token NER (17 BIO labels) |
| `anomaly_head` | Anomaly score regression |

## Load (training codebase)

```python
from training.model import AstraeaConfig, AstraeaModel
import torch

cfg = AstraeaConfig(
    base_model_name="answerdotai/ModernBERT-base",
    num_mitre_classes=791,
)
model = AstraeaModel(cfg)
state = torch.load("pytorch_model.bin", map_location="cpu", weights_only=True)
model.load_state_dict(state, strict=False)
```

## Package metadata

```json
{
  "model_id": "lunaris-sentinel",
  "base_model": "answerdotai/ModernBERT-base",
  "checkpoint_root": "/root/neobert-astraea-finetune/checkpoints/astraea-modernbert-full",
  "primary_weights": "/root/neobert-astraea-finetune/checkpoints/astraea-modernbert-full/checkpoint-3000",
  "num_mitre_classes": 791,
  "num_ner_labels": 17,
  "checkpoints_included": [
    "checkpoint-2000",
    "checkpoint-2500",
    "checkpoint-3000"
  ]
}
```