What is LLM-powered image detection?

LLM-powered detection uses a state-of-the-art Large Language Model to visually analyze images and provide detailed, human-readable reports about whether an image is AI-generated. Unlike traditional classifiers that output just a score, the LLM explains its reasoning — pointing out specific artifacts, inconsistencies, and visual clues.

How is this different from the standard AI detector?

The standard detector uses neural network classifiers (CNNDetection, ELA, etc.) that provide numerical confidence scores. The V2 LLM detector provides a detailed written analysis explaining exactly what artifacts were found, why the image looks AI-generated or authentic, and checks for SynthID watermarks. Think of it as getting an expert's opinion vs. a test score.

What is SynthID and can this tool detect it?

SynthID is Google's invisible digital watermark technology embedded in AI-generated images created by Google's AI tools (like Imagen). Our LLM detector can identify potential SynthID presence, though definitive SynthID verification requires Google's proprietary tools. The LLM provides its best assessment based on visual analysis.

Why does analysis take 30-60 seconds?

The LLM performs a thorough multi-aspect analysis of your image, examining textures, lighting, anatomy, background coherence, and more. This comprehensive approach takes more time than simple classifiers but provides much richer and more actionable results.

Can I get the analysis in my language?

Yes! We support 30+ languages for the analysis output. Simply select your preferred language from the dropdown before uploading your image. The entire analysis report, including technical details, will be provided in your chosen language.

Is this tool free to use?

Yes, the AI Image Detector V2 is completely free to use. You can analyze images without creating an account. However, signing in allows you to access your detection history and manage past analyses.

AI IMAGE DETECTOR V2 — LLM POWERED

AI Image Detector V2

Powered by PhotoCheck AI LLM — Get detailed, human-readable analysis of any image with AI-generated content detection, SynthID watermark scanning, and visual artifact identification.

Output Language:

Upload Image for LLM Analysis

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Supports: JPEG, PNG, WebP, GIF, TIFF • Max 20MB

// How LLM Detection Works

01

Upload Image

Select any photo to analyze

02

Choose Language

Get results in your preferred language

03

AI LLM Analysis

PhotoCheck AI LLM analyzes the image

04

Detailed Report

Get a comprehensive analysis report

// See It In Action

Real analysis results from our LLM-powered detector showing AI artifact identification and detailed forensic explanation

AI Image Detector V2 LLM Analysis Result showing AI Generated verdict with confidence score and detected artifacts

Verdict & AI Artifacts

Instant verdict with confidence level, SynthID check, and specific AI artifacts detected — including inconsistent details, geometric watermarks, and irregular features.

AI Image Detector V2 detailed analysis showing visual artifacts, texture analysis, lighting consistency, and background coherence examination

Detailed Expert Analysis

Human-readable forensic report covering visual artifacts, texture & surface analysis, lighting consistency, background coherence, and fine detail examination.

LLM

Powered by PhotoCheck AI

30+

Output Languages

SynthID

Watermark Check

Free

No Cost

// About LLM-Powered Detection

Unlike traditional AI detectors that use neural network classifiers, our V2 detector leverages a state-of-the-art Large Language Model to perform intelligent visual analysis. This approach provides human-readable explanations of why an image may be AI-generated, rather than just a confidence score.

The LLM examines multiple visual aspects including anatomical accuracy, texture consistency, lighting physics, semantic coherence, and known AI generation artifacts. It can also check for SynthID digital watermarks embedded in AI-generated images.

You can choose from 30+ languages for the analysis output, making this tool accessible to users worldwide. All processing is done securely — your images are analyzed and stored only for result delivery.