How does the ChatGPT Detector work?

The detector uses a dual-layer analysis: statistical signals (affirmation openers, closing helpers, delve count, disclaimer density, vocabulary cluster) combined with GPT-4o deep linguistic analysis calibrated specifically for ChatGPT output patterns.

Can it detect GPT-4 and GPT-4o output?

Yes. The ChatGPT Detector is tuned for GPT-3.5, GPT-4, and GPT-4o output. These models share a common RLHF-trained fingerprint including affirmation openers, helper closing lines, and specific vocabulary clusters.

ChatGPT Detector

Q: What is a ChatGPT Detector?

A ChatGPT Detector is a specialised tool that analyses text for the distinctive fingerprint of ChatGPT output — affirmation openers, AI self-disclosure, closing helper formulas, disclaimer injection, delve overuse, and the ChatGPT vocabulary cluster.

Q: Is the ChatGPT Detector free?

Yes. Detect A Clanker offers a free ChatGPT Detector for educators, publishers, businesses, and individuals who need to identify ChatGPT-generated text.

Specimen · ChatGPT Examination Panel

Article I

What is the ChatGPT Detector?

A specialised forensic instrument trained on the distinctive fingerprint of ChatGPT (GPT-3.5, GPT-4, GPT-4o). It detects the patterns that are unique to ChatGPT output — not generic AI tells, but the specific habits OpenAI's models developed through RLHF training: affirmation openers, AI self-disclosure, closing helper formulas, and the infamous overuse of "delve".

Article II

How to use the ChatGPT Detector

Paste any text — a response, article, essay, email, or message — into the examination panel and press Examine. The detector analyses ChatGPT-specific patterns: affirmation openers, AI self-disclosure, closing helper formulas, disclaimer injection, knowledge-cutoff hedges, list-framing compulsion, and vocabulary clusters unique to GPT models.

Article III

What the detector looks for

"Certainly!", "Absolutely!", "Great question!" — affirmation openers. "As an AI language model..." — self-disclosure. "I hope this helps! Feel free to ask!" — closing helper. "It's important to note that..." — disclaimer injection. "Delve" — ChatGPT's most statistically anomalous word, occurring at 10× human baseline. Plus knowledge-cutoff hedges, markdown header abuse, em-dash overuse, and the full ChatGPT vocabulary cluster.

Frequently Asked Questions

What is a ChatGPT detector?

A ChatGPT detector is a specialised tool that analyses text for the distinctive fingerprint of ChatGPT output — not generic AI signals, but the specific patterns that OpenAI's models developed through RLHF training: affirmation openers ("Certainly!", "Absolutely!"), AI self-disclosure, closing helper formulas ("I hope this helps!"), disclaimer injection, and the infamous overuse of "delve".

What makes ChatGPT text different from other AI models?

ChatGPT has a distinctive fingerprint shaped by its RLHF training on customer-service interactions. It uniquely opens responses with affirmation phrases, breaks the fourth wall about its own nature ("As an AI language model…"), closes with helper sign-offs, and overuses specific words like "delve", "leverage", "nuanced", and "tapestry" at rates far above any human writer.

Can it detect GPT-4o and GPT-4 output?

Yes. The detector is calibrated for GPT-3.5, GPT-4, and GPT-4o. All three share the same RLHF-trained fingerprint, though GPT-4 and GPT-4o produce slightly more varied output. The affirmation opener and closing helper signals are highly reliable across all versions.

Why is "delve" such a strong ChatGPT signal?

"Delve" appears in GPT-4 output at approximately 10× the rate of human writers. It became one of the most statistically anomalous words in AI-generated text after GPT-4's release and remains a reliable single-word indicator of ChatGPT authorship even in otherwise well-humanised text.

Is the ChatGPT Detector free?

Yes. The ChatGPT Detector is free to use for educators, publishers, businesses, and individuals. Premium plans are available for higher usage volumes and API access.

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