Question 1

What is DeepFlag.ai?

Accepted Answer

DeepFlag.ai is a free, open-source AI content detector that analyzes text and images to determine whether they were generated by an AI. It combines multiple detection signals into a single confidence score with a transparent per-metric breakdown. No sign-up is required.

Question 2

How does AI text detection work?

Accepted Answer

Text detection uses a weighted ensemble of four signals: perplexity scoring, burstiness analysis, entropy measurement, and a RoBERTa-based ML classifier. Each signal contributes to a final confidence score from 0 to 100%.

Question 3

How does AI image detection work?

Accepted Answer

Image detection runs FFT frequency analysis, EXIF metadata inspection, and a dedicated image classifier model trained on real versus AI-generated images. All three signals are combined into one confidence score.

Question 4

Is my text or image stored or used for training?

Accepted Answer

No. All content submitted is processed in real time and immediately discarded. DeepFlag.ai does not store, log, or use your submissions for model training.

Question 5

Is DeepFlag.ai free to use?

Accepted Answer

Yes. The web detector is completely free and requires no sign-up. A Developer API is also available for teams that need to integrate AI detection into their applications.

Question 6

Does DeepFlag.ai have an API?

Accepted Answer

Yes. The DeepFlag API is a RESTful service with API key authentication, full OpenAPI documentation, and JSON responses including confidence scores and per-metric breakdowns.

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