Local prompt-injection guard for text, images, docs, and audio
BordairAPI · reddit · 2026-07-20
Bordair Detector is an open-source, locally runnable guard against prompt injection and jailbreaks for LLM apps.
- It uses a two-stage pipeline: fast regex rules catch obvious attacks in under 1 ms, and only ambiguous inputs go through a quantised DeBERTa-v3 ONNX classifier.
- It is multimodal: it can scan OCR’d images, EXIF/metadata, steganography, PDFs/DOCX, and audio transcripts, not just plain text.
- It includes multi-turn detection for attacks split across messages.
- Everything runs locally with Hugging Face-hosted weights and no API dependency.
- The project also ships a dataset and model weights, trained on over 500k samples plus 13,230 real-world attacks from a live red-team game.
This is positioned as a drop-in security layer for any app that forwards user input to an LLM.
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