AI text detection
Examines vocabulary repetition, recurring phrases, sentence-length distribution, punctuation frequency, and unusual characters. More complete text usually produces steadier statistical signals.
Open text detectorFree AI content detector Text · Image · Video
How can you screen text and images—and review video for AI-generated content?
No login or sign-up required. Available services are selected automatically, with consent before image or video uploads. Text currently provides local supporting clues; uncalibrated results remain inconclusive.
- Three content types
- No login or sign-up
- Evidence you can inspect
Content screening and verification
Choose the content to inspect
Results separate heuristic screening signals, file facts, and evidence limitations.
Text content
Paste the text you want to inspect
GenDetect checks repetition, sentence length, punctuation, and character structure.
Your text is not saved or uploaded
Image content
Choose a local image
Automatically checks generator metadata, provenance credentials and model signals, with consent before server analysis.
本地启发式不会上传图片。
Server analysis requires confirmation of the upload and processing notice
Video content
Choose a local video
Server analysis supports videos up to 120 seconds and 100MB, inspecting at most six sampled frames after upload consent. Audio and temporal continuity are not checked.
Analysis time depends on file size
Detection methods
What signals does AI content detection examine?
Each content type needs a different analysis. GenDetect separates screening signals, file facts, and limitations.
AI image detection
Checks original-file metadata, provenance credentials and model signals. Unverified claims and uncalibrated scores remain supporting clues.
Open image detectorVideo-frame and metadata screening
Server analysis checks at most six frames of videos up to 120 seconds. It does not inspect audio or temporal continuity, and a negative result does not establish human origin.
Open video detectorHow to read the score
The screening index is a rule anomaly score, not a source probability.
This demo locally aggregates heuristics for text, images, and sampled video frames; images also check known generator metadata. The index is not trained or probability-calibrated and cannot prove origin.
Understand and verify
Move from a screening index to an explainable judgment
Understand the signals and false-positive limits first, then verify the original file, provenance, and editing process. These resources separate methodology, accuracy, and human review.
How do AI detectors work?
See how text and image signals form screening indexes, which video file facts are read, and what browser heuristics cannot determine.
Read methodology and limitationsCan AI detectors be wrong?
Understand false positives, false negatives, thresholds, and sample differences without mistaking an uncalibrated screening score for a probability of origin.
Review accuracy and false positivesHow do you verify AI content manually?
Check original material, content credentials, publishing sources, version history, and contextual facts with separate workflows for text, images, and video.
Read the human verification guideFrequently asked questions
About AI content detection
Understanding the limits of detection scores helps reduce false positives for human and edited content.
Are AI content detection results accurate?
AI content detection provides supporting clues only. Models, rewriting, compression, and input length can all affect the result, so a score alone cannot establish the source.
Why does text detection need longer content?
Longer text contains more samples of sentence structure, repetition, and punctuation, making statistical signals steadier than they are for short snippets.
What does image and video detection analyze?
Images are checked for metadata, provenance and model signals. Video analysis checks at most six sampled frames, without audio or temporal analysis. Uncalibrated model scores cannot independently establish origin.
Can the result be treated as a final verdict?
No. Verify the author, publication date, original file, content credentials, and publishing source before reaching a conclusion.
Does GenDetect require a login, sign-up, or content upload?
No login or sign-up is required. Detection follows enabled service capabilities. Image and video server analysis requires upload consent; text stays in the browser when specialist text detection is unavailable. Completed uploads are deleted, interrupted uploads expire within one day, and any external providers are disclosed before upload.