Question 1

Is the Plagly.ai AI detector free?

Accepted Answer

Yes. You can detect AI-generated text for free, with no signup required to try it. Paste your text and get instant sentence-level results. Free accounts include a generous monthly word allowance, and paid plans add higher limits, bulk checks, and API access — starting at $4.99 for your first month, then $9.99/mo.

Question 2

How accurate is the AI detector?

Accepted Answer

Plagly.ai reaches up to 99% accuracy with a false-positive rate under 0.4%. Instead of relying on a single model, it runs your text through an Agentic Council of multiple detection models and combines their verdicts — so a blind spot in one model is caught by the others, making results far more robust than single-model tools.

Question 3

Which AI models can it detect?

Accepted Answer

It detects content from ChatGPT, GPT-5.5, Claude 4, Gemini 3.1, and 15+ other large language models. Detection patterns are retrained continuously as new models launch, so coverage stays current with the latest frontier releases.

Question 4

Can it detect paraphrased or humanized AI text?

Accepted Answer

Yes. Paraphrasers and "humanizer" tools change surface wording but leave deeper structural fingerprints — sentence rhythm, discourse patterns, and statistical regularities — that the multi-model council still recognizes. Detection accuracy on humanized text also improves every cycle as new patterns enter training data.

Question 5

Will it falsely flag my own human writing?

Accepted Answer

False positives are kept under 0.4%, and results are shown sentence by sentence rather than as a single pass/fail label — so you can see exactly which passages were flagged and why. If you write in a very formal or templated style, review the highlighted sentences in context rather than treating the overall score as a verdict.

Question 6

Is my text stored or used to train AI?

Accepted Answer

No. Your documents are processed securely, never used to train models, and are not stored permanently. Content is handled with enterprise-grade encryption and GDPR-compliant data practices.

Question 7

Can teachers and universities use it?

Accepted Answer

Yes. Educators use Plagly.ai to check student submissions for AI-generated content with sentence-level reports, bulk processing, and team management. It is built to support academic-integrity workflows rather than to help evade them.

Question 8

How is Plagly.ai different from Turnitin or GPTZero?

Accepted Answer

Most detectors use a single-model approach. Plagly.ai uses a multi-model Agentic Council for higher robustness, includes a built-in plagiarism checker (not a separate paid tool), supports 15+ calibrated languages, and lets you try it free with no signup. See our detailed comparisons on the blog for a side-by-side breakdown.

AI内容检测器