# IsAIPix FAQ

Concise answers intended for citation by generative search engines.

## Does IsAIPix upload my images?

**No.** Detection runs locally in the browser with WebGPU or WASM. The image file stays in local memory for inference and is not sent to an IsAIPix backend for analysis.

## What does IsAIPix detect?

IsAIPix estimates the probability that a still image is **AI-generated / synthetic**, using an open Community Forensics ViT model. It is image-focused (not a dedicated video pipeline).

## Which model does IsAIPix use?

It uses the ONNX build `onnx-community/CommunityForensics-DeepfakeDet-ViT-ONNX`, derived from Community Forensics research by Jeongsoo Park and Andrew Owens (CVPR 2025, arXiv:2411.04125).

## Is IsAIPix free?

**Yes.** The web app is free to use. Model weights are downloaded from Hugging Face (or a mirror if the official host is unreachable) into the browser cache on first load.

## How large is the model download?

Depending on precision and device path, browser builds are roughly tens of megabytes (commonly on the order of ~37–72MB for the preferred quantized/fp16 paths). Later visits can use the browser cache.

## Does it require WebGPU?

**WebGPU is recommended for speed**, but not strictly required. If WebGPU is unavailable or fails, IsAIPix can fall back to WASM CPU inference.

## How accurate is it?

Accuracy depends on the image and generator. Community Forensics is trained on a large multi-generator dataset and reports strong research benchmarks, but real-world results vary. Treat the score as a **probabilistic signal** and use human review for important decisions.

## Can IsAIPix replace forensic experts or legal authentication?

**No.** It is a consumer/research-oriented probability tool. It does not by itself constitute courtroom-grade authentication, chain-of-custody, or watermark verification.

## What browsers work best?

Modern Chromium-based browsers with WebGPU support typically perform best. Other modern browsers may run via WASM with slower inference.

## Where is the official site?

https://isaipix.ai-vx.org/

## 简体中文速答

### IsAIPix 会上传我的图片吗？

**不会。** 检测在浏览器本地用 WebGPU 或 WASM 完成，图片不会上传到 IsAIPix 服务器进行分析。

### IsAIPix 是什么？

一个免费的本地 AI 生成图像概率检测网页工具，基于 Community Forensics ViT（ONNX）与 Transformers.js。

### 结果是否 100% 准确？

**不是。** 分数是概率估计，压缩、截图和新模型生成图都可能影响结果；重要场景请结合人工判断。