Check whether a piece of text was written by GPT-4 using probability-based analysis. Free daily checks, no signup required.
Check TextFree daily checks • No signup • Instant analysis • Up to 8,000 characters
Analyzing text for GPT-4 patterns...
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Probability-based estimate – actual result may vary.
Check whether essays were written by AI
Review student submissions
Assess content authenticity
Validate human-written content
Analyzes linguistic patterns, sentence structure, and vocabulary usage specific to GPT-4 generation.
Evaluates writing against known GPT-4 output characteristics to identify statistical similarities.
Calculates a probability score and provides a plain-language explanation of the findings.
Note: Analysis is real-time and does not store user data.
Yes. Free daily checks are available with no signup required.
The tool provides probability-based estimates by analyzing linguistic patterns. Results should not be treated as absolute proof.
No. All text is processed in real time and never saved.