The best AI detector in French (2026 comparison)

Nowadays, much of the content published online is no longer written solely by humans, but is also generated using artificial intelligence (AI) tools. This applies equally to students, authors and content creators.

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In some cases, it can be difficult to determine the true origin of a text. This is why teachers and publishers rely on AI detection tools to verify its source. To check the content, a service such as Smodin is often used. This tool allows users to generate content, rephrase it or even translate it.

Specific features of detection in French

The French language has many nuances that make text verification quite difficult:

• firstly, complex grammar. For example, word order can often change within sentences;
• secondly, formal constructions. The writing style in French often appears more consistent and structured than, for example, in English. This is why AI-based checking systems may flag this type of text as generated;
• thirdly, French is rich in synonyms. Some recognition tools may struggle to correctly identify or analyse regional variants.

Popular tools

In 2026, the most widely used AI detectors for French are as follows, each with its own unique features:

• Smodin – a simple service that analyses text and determines the likelihood that it was generated by AI. It stands out for its speed and user-friendly interface.
• Winston AI – a detector that evaluates texts based on their structure and vocabulary. Accurate for English texts, but also suitable for French.
• Draft & Goal – a tool suited to analysing articles and essays. It is most commonly used in an academic context.
• Zero GPT – is popular thanks to its speed and its ability to check long texts.
• Copyleaks – is a more professional service, combining the functions of anti-plagiarism software and an AI detector.

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Comparison of the effectiveness of AI detectors

The effectiveness of AI detectors depends on the length of the text, the subject matter, the language and the structure. All the tools mentioned produce good results, but there are differences:

Cost and accessibility

The price and accessibility of the service are also important factors to consider when making a choice:

• Smodin – there is no completely free version.
• Winston AI – offers a 14-day free trial (limited to around 2,000 words). Prices start from $10–12 per month. For this price, you get advanced checking.
• Draft & Goal – used to be completely free, but has now switched to a ‘Freemium’ model. Basic features are available for free, but with limitations.
• Zero GPT – offers a free version that allows you to check texts of up to 15,000 characters without registration. Paid plans start at around $15 per month. They remove adverts and increase the character limit.
• Copyleaks – you can try it for free on the website, but a subscription is required for regular use. The AI detector alone costs from $8 per month.

Recommendations for choosing

The choice of detector depends on your needs:

• For a quick check of short texts, Smodin and Draft & Goal are ideal.
• For long texts and complex academic documents, it is best to use Zero GPT and Copyleaks.
• If high accuracy and analysis of the text structure are important, opt for Winston AI.

It is important to bear in mind that no tool guarantees absolute reliability. To obtain a more robust assessment, it is best to cross-check the results by using several detectors in parallel.