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.

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Is the Plagly.ai AI detector free?

How accurate is the AI detector?

Which AI models can it detect?

Can it detect paraphrased or humanized AI text?

Will it falsely flag my own human writing?

Is my text stored or used to train AI?

Can teachers and universities use it?

How is Plagly.ai different from Turnitin or GPTZero?

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