Question 1

What is AI Detector Arena?

Accepted Answer

AI Detector Arena is an independent benchmark platform that tests AI image detectors against a curated dataset of AI-generated and real images. We measure accuracy, false positive rates, and false negative rates across multiple detectors and AI models. The Arena also features live Elo-based rankings where users vote on which detector performs better in head-to-head comparisons.

Question 2

How does the Combined Score work?

Accepted Answer

The Combined Score merges two ranking systems: Benchmark Accuracy (60%) and Arena Elo (40%). Benchmark Accuracy comes from automated testing on our curated dataset. Arena Elo comes from community votes in head-to-head battles. This gives you a single number that reflects both objective testing and real-world comparative judgment.

Question 3

How does the AI detector benchmark work?

Accepted Answer

We submit the same set of images — both AI-generated and real photographs — to each detector and record their verdicts. From these results we calculate accuracy (percentage of correct predictions), false positive rate (real images incorrectly flagged as AI), and false negative rate (AI images missed by the detector). All detectors are tested on the same dataset for a fair comparison.

Question 4

What is the Arena Elo rating?

Accepted Answer

The Arena uses an Elo rating system — the same system used in chess rankings. Users are shown an image and two detector verdicts side by side, then vote for the detector that gave the better answer. Over time, detectors that consistently win accumulate higher Elo scores. This provides a complementary ranking to the static benchmark.

Question 5

Which AI detectors are tested?

Accepted Answer

The benchmark includes major commercial and research AI detectors such as Hive Moderation, SightEngine, AI or Not, Illuminarty, Content at Scale, and others. We continuously add new detectors as they become available and re-test existing ones as they update their models.

Question 6

Which AI image models are in the dataset?

Accepted Answer

Our dataset includes images from popular AI generators: Midjourney, Stable Diffusion (SDXL, SD 3.5), DALL-E 3, Flux, Adobe Firefly, Leonardo.ai, Runway, Google Imagen (Gemini), and Ideogram. The dataset also includes real photographs to test for false positives.

Question 7

Is the benchmark independent?

Accepted Answer

Yes. AI Detector Arena is not affiliated with any AI detector vendor or AI image generator. We do not accept payment for rankings or favorable placement. All results are based on automated testing against our curated dataset.

Rank	Detector	Score	Accuracy	F1	FPRFPR	FNRFNR	Dataset
🥇	TruthScan	97.7	94.8%	97.5	0.8%	4.1%	934
🥈	SightEngine	96.2	91.3%	95.9	1.2%	6.8%	1282
🥉	MyDetector	88.7	83.8%	87.7	5.5%	17.6%	291
4	Was It AI	87.8	85.0%	87.1	8.0%	16.8%	1282
5	AI or Not	87.3	75.5%	88.8	21.5%	3.0%	98
6	Winston AI	81.1	78.2%	81.9	23.2%	14.5%	1271
7	Decopy	77.2	65.4%	73.7	6.8%	37.7%	1122
8	HF SDXL-detector	72.3	60.5%	69.8	17.1%	37.1%	1282
9	HF AI-image-detector	50.7	16.2%	36.8	8.8%	75.5%	1282

AI Detector Rankings

Detector Rankings

AI Model Detection Rates

How Rankings Work

Combined Score Formula

F1 Score

FPR & FNR

Dataset

Frequently Asked Questions