Free AI Content Detector - Human vs AI Text Checker Tool

Our Free AI Content Detector. Get an originality score, detect ChatGPT and Gemini content, and ensure your work is 100% human-written.

AI Content Detector

Check if your text was written by a human or generated by AI.

Free AI Content Detector: Check Text for Human vs. AI Origins

The rapid rise of Generative AI tools like ChatGPT, Gemini, and Claude has made it easy to produce large volumes of text instantly. However, for publishers, educators, SEO professionals, and content strategists, it’s crucial to distinguish between human-written and AI-generated content to ensure authenticity, quality, and compliance with various policies (like Google’s stance on helpful, people-first content).

Our Free Online AI Content Detector allows you to analyze any block of text and instantly estimate the likelihood that it was created by an AI model versus a human writer.

How the Human vs. AI Text Checker Works

The tool uses sophisticated linguistic analysis models, similar to those developed by large language model providers, to evaluate several key characteristics often found in AI-generated text:

1. Input Text:

Paste or type the content you want to analyze into the text box. This could be a student essay, a blog post draft, an email, or any other document.

2. Linguistic Analysis:

The detector analyzes the text based on statistical patterns:

  • Perplexity: AI models often write with low perplexity, meaning the text is highly predictable and common. Human writing tends to have higher, more varied perplexity.
  • Burstiness: AI models typically produce sentences with uniform sentence structure and length (low burstiness). Human writers tend to vary sentence length and complexity much more (high burstiness).
  • Predictability: AI text often adheres strictly to patterns, making it statistically predictable.

3. Instant Results:

The tool provides a clear, actionable score or percentage indicating the text’s likely origin:

Result Interpretation
90%+ AI Score The text is highly structured and predictable, suggesting a high probability of being generated by an AI model.
50% – 90% Hybrid The text contains a mix of both predictable and human-like elements. This is common when AI text has been heavily edited or “humanized.”
< 50% AI Score The text displays high complexity, varied structure, and is less predictable, suggesting it was written by a human.

 

Why You Need an AI Detection Tool

Using a reliable AI checker is essential for maintaining integrity and effectiveness across several domains:

  • SEO and Content Quality: Google’s search algorithms prioritize helpful, original, people-first content. Content that is clearly identifiable as low-effort AI spam may face penalties or poor ranking performance. Using the detector ensures your published content maintains a high standard of human creativity.
  • Academic Integrity: Educators can use this tool to screen essays and assignments, helping to uphold academic honesty and ensure students are submitting their own work.
  • Plagiarism Prevention: While traditional plagiarism checks look for copied sources, an AI detector confirms the originality of the authorship style.
  • Team Vetting: Content managers can verify the authenticity of work submitted by freelance writers or agency partners.

Enhance Your Content Quality Workflow

After checking your content for AI influence, optimize it further with these related free tools:

  • Ensure your content is perfectly readable by checking its grade-level score with our SEO Content Generator.
  • Analyze the exact length and composition of your content using the Word Counter Tool. (Update the link text and URL to a relevant tool on your site).
  • Explore our complete collection of 500+ Free Online Tools for all your digital and content creation needs.

Test your text now to ensure your content is genuinely human-powered!

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