Free AI detector | Very efficient | Detects AI texts
✓ Paste your text into the AI chatbot below, and get your score!
The detector will tell you if your text looks like it was written by an AI
Free, no registration required, and very effective!
Is your text detected as having been written by an AI? You can override AI detection with our free AI text humanization tool.
Is the uncertainty surrounding the origin of texts (AI or human?) threatening the authenticity of your strategic content in regulated sectors? Discover Nation AI’s
Why is an AI text detector now indispensable?
The democratization of AI-generated content is transforming text production in the education, marketing and financial sectors. Tools such as ChatGPT, Gemini or Mistral enable rapid creation, but pose crucial challenges in terms of text authenticity and reliability.
The rise of content generated by artificial intelligence
AI is revolutionizing writing, but its uncontrolled use carries risks. In education, assignments written by algorithms call into question the fairness of assessments. In business, AI content can damage a brand’s credibility if the information is erroneous or biased. In SEO, search engines penalize texts lacking originality, affecting referencing.
Academic misappropriation, dissemination of false data or mass copying threaten user confidence. Rigorous analysis is therefore essential to guarantee the authenticity and preserve the value of human writings.
Introducing Nation AI’s AI Detector: an effective solution
Nation AI’s AI Detector meets these challenges. This free tool, designed in France, accurately detects texts produced by the dominant models (ChatGPT, Gemini, Mistral, Claude). Its intuitive interface allows immediate use without registration, guaranteeing speed and accessibility.
Based on advanced algorithms, it analyzes writing patterns to assess the likelihood of AI generation. Suitable for academics, marketing professionals or SEO copywriters, it helps validate the originality of texts while respecting data confidentiality. According to our tests, it’s the best option for free, reliable verification.
How does our IA detection technology work?
Analysis based on unique writing patterns
Our tool is based on advanced AI algorithms capable of analyzing deep linguistic structures.
It uses two key indicators: perplexity (measures text predictability) and variability (analyzes alternating sentence length and complexity).
Human texts generally exhibit higher perplexity and variability, in contrast to AI productions, which are often more uniform and predictable.
This dual approach guarantees accurate detection of content generated by models such as ChatGPT, Mistral or Gemini, even after paraphrasing or grammatical correction.
The algorithms are trained on millions of texts, both human and AI-generated, to recognize recurring patterns.
A continuous learning system enables the tool to adapt to rapidly evolving AI models, ensuring its relevance in the face of constantly changing technologies.
Extended compatibility with all major language models
Nation AI’s AI Detector tool adapts to developments in AI technology through regular updates.
Efficiently identifies texts produced by :
- ChatGPT (all versions, including GPT-4)
- Mistral (advanced French model)
- Gemini (formerly Bard)
- Claude (Anthropic model)
- LLaMA, Grok and other open-source architectures
This broad compatibility makes it a versatile tool for demanding professionals, capable of keeping pace with the evolution of AI models while maintaining optimum reliability.
Designed for the education, quality control or SEO sectors, it combines technical precision and accessibility, with no prior registration or hidden costs.
Our in-house tests are more than 98% effective in identifying mixed texts (human + AI), while limiting false positives by systematically attributing bias to human text in cases of doubt.
Key benefits of Nation AI’s Detector
Nation AI’s AI Detector meets text verification needs with a free, accurate and secure solution. Designed for both professional and personal use, it integrates the specificities of the French language while guaranteeing reliable detection of AI-generated content.
| Features | User benefit |
|---|---|
| Free access without registration | Immediate analysis with no fees or usage limits. No administrative barriers for all users. |
| Specialization in the English language | Recognition of linguistic subtleties and patterns specific to English-trained models such as ChatGPT. |
| Accuracy via perplexity analysis | Reliable measurement thanks to advanced models. Identification of statistical patterns in AI handwriting with clear confidence scores. |
| Total confidentiality | No storage of analyzed texts. Real-time analysis with encryption of data in transit. |
| Intuitive interface | Quick analysis via copy & paste, files (PDF/TXT) or URL. Immediate results with clear visualization of probability score. |
This tool is aimed at educators, SEO professionals and businesses. Its compatibility with ChatGPT, Mistral, Gemini and Claude ensures versatile detection. Analysis of PDF documents or URLs, combined with a clear interface, makes it easy to interpret results.
RGPD-compliant and with no data storage, this detector combines ethics and performance. It preserves content integrity while adapting to the requirements of the French-speaking market thanks to regular updates.
Who should use our AI content detection tool?
Verifying the authenticity of texts has become a major challenge in many fields. Our tool, Nation AI Detector, is aimed at all professionals faced with the challenges of traceability and editorial quality, offering them a free, no-registration solution capable of analyzing texts generated by major models such as ChatGPT, Mistral, Gemini or Claude. Designed in France, it adapts to local linguistic and regulatory specificities, while guaranteeing effective detection thanks to in-depth analysis of writing patterns.
For the teaching and academic research sector
Teachers and students benefit from a central tool for preserving academic integrity. It enables the originality of submitted work to be verified, while raising awareness of good practice in the use of AI. Unlike a simple plagiarism detector, it identifies whether content has been generated by an AI, without replacing pedagogical analysis. This tool is part of a transparent approach, helping to distinguish human texts from those produced by AI models, while respecting the nuances of ethical use. For example, a teacher can use it to evaluate student dissertations or check the conformity of research work.
For content and SEO professionals
Content creators and SEO experts use the tool to guarantee the authenticity of their productions. Text written by a human being offers undeniable added value for search engines and the public. The tool verifies the quality of content, whether produced in-house or by third parties, by detecting low-quality automated reformulations. This boosts reader confidence and optimizes SEO, while avoiding penalties for content perceived as artificial. By integrating the tool into their validation process, communications agencies can be sure of delivering unique texts, avoiding the pitfalls of uncontrolled AI content generators.
- Checking essays and dissertations in the educational environment.
- Content audit for SEO strategies.
- Quality control of deliverables for content agencies.
- Validation of the originality of reports and communications.
Practical guide: using the tool and interpreting results
Simple steps for rapid analysis
Nation AI’s AI Detector offers an intuitive interface for efficiently analyzing your texts. Follow these steps to get accurate results:
- Go to Nation AI’s AI Detector tool page, a free French tool with no registration required.
- Copy the text to be analyzed (minimum 80 words) and paste it into the dedicated field.
- Import a file (PDF, TXT) or URL for greater flexibility.
- Click on the Detect text button to launch an instant analysis.
- Get the result in seconds, with a probability score and highlighting of doubtful passages.
This tool, designed to detect Mistral, Gemini, Claude and other generated texts, guarantees fast, reliable operation.
Understanding the detection score and the tool’s limitations
The score provided by Nation AI’s AI Detector represents a probability, not an absolute certainty. It reflects the probability of a text being generated by AI, based on linguistic analyses such as perplexity (predictability) and burstiness (stylistic variation).
No detector is 100% accurate. Human texts that are highly structured or modified by correction tools may be wrongly identified as AI (false positives). A mixed score, such as 60% AI and 40% human, often indicates AI text post-edited by a human author.
This tool remains a powerful decision-making aid, but the final human judgment is inescapable. Use the score as a starting point for in-depth verification, especially in critical contexts such as education or SEO.
Guaranteeing the integrity of your content: an essential step
Faced with the rise of artificial intelligence tools, Nation AI’s AI Detector meets the needs of professionals in the banking, education or legal sectors. This reliable and accessible tool accurately identifies texts generated by models such as ChatGPT, Mistral, Gemini or Claude. Designed in France, it combines an intuitive interface with optimized detection, guaranteeing free analysis without registration, while limiting false positives thanks to a rigorous algorithmic approach.
Its integration into professional workflows enhances the credibility of key documents, whether financial reports, legal contracts or academic studies. Compatible with English language standards and the technical requirements of major institutions, it adapts to non-technical users while offering traceability of results. This preserves regulatory compliance and meets expectations of authenticity in fields where the slightest error can have major consequences.
Beyond technical verification, this detector embodies an ethical approach to enhancing authentic content. By supporting transparency and anticipating legal developments around AI, it becomes a strategic lever for organizations. Its effectiveness, combined with its free availability, makes it an ally in maintaining trust in decision-making processes and professional exchanges, while respecting the principles of fairness and responsibility.
Faced with the rise of AI content, the AI Nation Detector guarantees authenticity through perplexity and variability analysis. Free of charge and without registration, it efficiently detects generated texts. Indispensable for teachers and professionals alike, it embodies an ethical commitment to reliable content.
