About Our Free AI Detector
SwiftoolAI's AI detector is a trusted, free AI checker that analyzes any piece of text and evaluates how likely it was generated by an AI model. Whether you need to detect output from ChatGPT, GPT-5, or Gemini, our AI text detector produces a scored verdict with clearly labelled detection signals — so you always understand why a decision was made, not just what it was.
As an AI content detector, the tool scans for patterns that distinguish AI-generated writing from human writing: unnaturally consistent sentence rhythm, absence of personal voice, overly hedged language, and generic structural choices. Each analysis returns an AI score from 0 to 100, a confidence level, and a set of specific signals explaining the result.
Our AI checker is built for teachers checking student submissions, editors verifying freelance content, hiring managers reviewing cover letters, and anyone who wants to know whether the text in front of them was written by a human or produced by an AI model. It is completely free to use with a SwiftoolAI account.
How Our AI Text Detector Works
1. Paste your text
Copy and paste any text you want to check — a blog post, essay, email, or social caption. Our AI detector works best with 150+ words.
2. AI analysis runs
Our AI content detector scans your text for the structural, stylistic, and linguistic patterns that distinguish AI-generated content from human writing.
3. Get your AI score
Receive an AI score from 0–100, a plain-English verdict (Human Written, Likely AI, etc.), and specific detection signals with explanations.
What Our AI Checker Looks For
Our AI content detector identifies the following patterns commonly found in AI-generated text:
Frequently Asked Questions
An AI detector (also called an AI checker or AI content detector) is a tool that analyzes text to evaluate how likely it was generated by an AI model such as ChatGPT, GPT-5, Gemini, or Claude. It looks for patterns in sentence structure, vocabulary, and writing style that are characteristic of AI-generated content versus human writing.
Our AI text detector is trained to recognize writing patterns from ChatGPT (GPT-3.5, GPT-4, GPT-5), Gemini (formerly Bard), Claude, Llama, Mistral, and other large language models. As AI writing evolves, our AI checker is regularly updated to keep pace.
Our AI content detector is highly accurate for clearly AI-generated or clearly human-written text. Like all AI detectors, accuracy decreases for heavily edited AI text or text written in an unusually formal human style. We always display a confidence level alongside the verdict so you can judge how certain the result is.
Yes — our AI checker is completely free. Create a free SwiftoolAI account (just a Google sign-in) to access the AI detector and all 25+ tools on the platform.
Yes. ChatGPT text tends to have distinctive patterns: uniform sentence length, overly balanced arguments, absence of genuine personal opinion, and a tendency toward formal transitional phrases. Our AI detector flags these patterns with labelled detection signals so you can see exactly why a score was assigned.
This tool focuses on AI text detection. For image analysis, check our AI Face Rater tool which uses image-based AI analysis.
We require a minimum of 50 characters for a reliable result. Shorter text doesn't give the AI detector enough signals to make a confident judgment. For best accuracy, paste at least 150 words.
No. Text you submit to our AI content detector is processed in real time and never stored on our servers. Your content stays private.