WangKaiLin/CleanOwl-AI-Slop-Detector

CleanOwl — AI Slop Detector

I hate AI-SLOP SO I MADE THIS.

CleanOwl is a lightweight human-likeness scoring engine.

It estimates how “human” a piece of text feels — not by classification,
but by analyzing structural signals such as:

• token distribution irregularity
• semantic continuity
• punctuation behavior

No transformers. No fine-tuning. Just statistical signals.

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Performance

• ~0.04 ms per token
• ~0.8 ms per sentence (typical)
• ~120 ms startup

Runs entirely on CPU.

Linear time complexity: O(n)

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🧠 What it actually measures

CleanOwl does not directly detect AI.

Instead, it measures how smooth vs irregular a piece of writing is:

• Human writing → irregular, biased, “spiky”
• AI / formal text → smooth, evenly distributed

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📊 Score Interpretation

Score	Meaning
< 60	Likely AI-generated / formal text
60–75	Mixed / ambiguous
> 75	Likely human-like message

This is a heuristic scoring system, not a classifier.

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⚠️ Limitations

• Short sentences may be unstable
• Highly polished human writing (e.g. essays, Wikipedia) may look AI-like
• AI can mimic human irregularity

This is a lightweight detector, not a definitive AI classifier.

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Quickstart

1️⃣ Install

git clone https://huggingface.co/WangKaiLin/CleanOwl-AI-Slop-Detector
cd CleanOwl-AI-Slop-Detector

pip install numpy safetensors fastapi uvicorn

2️⃣ Run Local API

uvicorn app:app --host 127.0.0.1 --port 8000 --reload

Open in browser:

http://127.0.0.1:8000/docs

If you see /detect, the API is running correctly.

3️⃣ Chrome Extension Setup

CleanOwl works via a local API + Chrome extension.

Open Chrome: chrome://extensions/ Enable Developer Mode (top right) Click Load unpacked Select: CleanOwl-AI-Slop-Detector/extension/ Refresh any webpage (Ctrl + R)

👉 CleanOwl will now analyze the page automatically.

🔒 Privacy

CleanOwl runs entirely on your local machine. No data is sent to any external server.

Usage

# CLI (scoring)
python ai_score.py

# Embedding demo
python quickstart.py

Extension perform

Example(ai_score.py)

請輸入文字：先思考：在 AI 時代，什麼樣的人才不會被取代？我的答案是：具備溝通能力的人、擁有韌性的人，以及始終願意站在第一線的人。

human score: 47.13
label: ai_slop_like

請輸入文字：身為專業的肥宅 都會把脂肪放在身上

human score: 76.88
label: maybe_human_like

Repository Structure

CleanOwl-AI-Slop-Detector/
├─ ai_score.py          # scoring logic (CleanOwl core)
├─ quickstart.py        # embedding demo CLI
├─ engine.py            # PipeOwl tokenizer + embedding loader
├─ pipeowl.safetensors  # embeddings + delta_field
├─ tokenizer.json
├─ ptt.npy              # style field (PTT-like distribution)
├─ config.json
├─ app.py               # FastAPI server
├─ requirements.txt
├─ extension/
│  ├─ content.js        # Chrome content script
│  └─ manifest.json
├─ example.md
├─ README.md
└─ LICENSE

LICENSE

MIT