As we all know it Originality AI is used by a lot of people out there to detect AI-generated text. However, can it detect ChatGPT reliably every single time? The short answer is YES. The longer answer is the devil lies in the details. Keep reading to know more about it.
Why ChatGPT gets detected by Originality AI?
The simple answer is just like many AI writing tools, ChatGPT (model o3) is not specifically made to bypass Originality AI’s detection. While ChatGPT can sometimes produce text that slips through, in most instances Originality AI does a pretty good job at flagging it. But does “pretty good” mean perfect? Not exactly.
Key findings from our testing
We tested a total of 160 samples using Originality AI’s Lite 1.0.0 model. Among these, 82 were ChatGPT generated, and 78 were human-written. Here is the summary of the results:
| Metric | Value |
|---|---|
| Accuracy | 83.8 % |
| Precision (when it cries “AI!”, it’s actually AI) | 96.7 % |
| Recall / Sensitivity (how many ChatGPT texts it catches) | 70.7 % |
| F1-score | 0.82 |
A brief explanation of these statistical terms:
- Accuracy (≈ 84 %) - It is the overall rate at which the detector is correct, whether the text is ChatGPT or human.
- Precision (≈ 97 %) - Out of all the texts flagged as AI, this is how often the detector is actually right. It is extremely high here, meaning when Originality AI labels something “AI,” it is almost always correct.
- Recall (≈ 71 %) - Out of all the real ChatGPT texts, how many did the tool catch? About 3 in 10 ChatGPT passages slip through undetected.
- F1-score (0.82) - Combines both precision and recall into one single metric.
Also Read: Can Originality.ai detect Quillbot?
Visual evidence
- Confusion-count bar chart: It clearly shows 58 true positives (correctly flagged ChatGPT pieces) and 24 false negatives (ChatGPT pieces missed as “human”), with only 2 false positives (human pieces wrongly called AI).
- Score distribution box-plot: Human writing scores cluster close to 100 %, whereas ChatGPT pieces are bimodal – many at 0 % but quite a few near 90 – 100 %, which explains why the recall is not 100 %.
Hence, if your priority is not to wrongly accuse humans, Originality AI is quite safe – it only mislabeled 2 out of 78 human samples (≈ 2.6 %). But if you absolutely want to catch every piece of AI writing, it might not be sufficient on its own. Also, if you want to bypass Originality.ai then you could try using our tool for free (use the "Originality.ai" mode).
How Originality AI works?
Just like other AI detectors, Originality AI most likely uses multiple techniques to identify AI-generated text. Here is a quick overview:
| Component | Description |
|---|---|
| Natural Language Processing (NLP) | Uses algorithms to analyze text patterns, structures, and certain statistical cues. |
| Stylometric Analysis | Examines writing style metrics like vocabulary usage, sentence structures, and length patterns. |
| Machine Learning Models | Trains on large datasets of AI-generated vs. human-written text to spot subtle clues. |
| Score Assignment | Gives a percentage “confidence” that the text is AI-generated. |
| Data Patterns and Anomalies | Flags repetitive structures, unnatural phrasing, or extremely low “perplexity.” |
Which version of Originality AI is made to do this task?
We used Originality AI Lite 1.0.0 for this test. They never advertise that they bypass any AI detectors; instead, they specifically aim to detect AI texts. So, basically, if your text is from ChatGPT, it’s quite likely that Originality AI will catch it most of the time.
Frequently Asked Questions
Q1. Does Originality AI detect ChatGPT?
Yes, Originality AI can easily detect ChatGPT. However, since its recall is only about 71 %, you could still slip through with some ChatGPT-generated text.
Q2. Why is there a 29 % miss rate for ChatGPT?
Because ChatGPT’s outputs are not uniform, and some might appear very human-like. The moderate recall basically means some advanced or “humanized” ChatGPT text might be labeled as human.
Q3. What about false positives on human text?
They are quite low – only 2.6 % for our 78 human samples. This indicates that if you are writing your own text from scratch, Originality AI has a tiny chance of accidentally flagging you.
Q4. How do I ensure Originality AI doesn’t flag me if I use ChatGPT?
If your goal is to bypass Originality AI, you need specialized rewriting or humanizing techniques. ChatGPT out-of-the-box is not designed to circumvent AI detectors.
Q5. Is Originality AI the only detector for ChatGPT?
No, there are many others such as GPTZero, CopyLeaks, etc. However, Originality AI is fairly popular for content creators who want to ensure text authenticity.
The Bottom Line
Originality AI’s overall accuracy stands at about 84 %, which is good but not foolproof. It has a high precision of 97 %, meaning it rarely cries “AI!” incorrectly. But its moderate recall of 71 % means nearly 3 out of 10 ChatGPT texts do pass as “human.” So, basically it is a trade-off. If you want to avoid false accusations of humans, Originality AI is quite safe. If you want to catch every single ChatGPT text, it is not enough alone.
Hence, the best way to use Originality AI is as a confirmatory tool. A flag saying “AI” by Originality AI is almost always correct, but a “human” verdict is uncertain. You will definitely want to do a manual review or use another AI detector if it’s critically important to catch all AI content.
