Check your English text for AI

Ludwig's AI Detector provides a percentage score that reflects how much of the submitted text looks like AI content, based on its AI model. 

The model is trained on extensive datasets containing both human-made text and AI writing. It analyzes the text in smaller sections, identifying patterns typical of AI-generated language. Each section is evaluated, and the tool aggregates the results into a single percentage score. 

The AI checker is built to assess how much your texts resemble AI-generated writings; however, no AI content detector on the web is capable of performing this task with a 100% reliability rate.

Please beware of AI checker and plagiarism checker platforms that claim otherwise. The best way to get a fact-checker, readability checker, and grammar checker all in one is to use all the AI writing tools on Ludwig’s platform. 

Ludwig is a comprehensive writing platform that allows you to paraphrase and use our sentence rewrite tool for free after signing up. Combat plagiarism and rewrite sentences with originality and clarity.

Ludwig’s AI Detector features a precision rate of 99.6% when checking for AI, focusing on accuracy to avoid false positives. It uses advanced algorithms to analyze perplexity, sentence patterns, uniformity, semantic normality, coherence, and so on.

Checking for machine-generated texts or parts of text with AI Detector can help reword phrases that some AIs might have copied from other original works. This is why Ludwig’s AI Detector can be a useful ally for plagiarism checks.

Get the percentage of AI writing in your text, with highlights on the most critical phrases or parts of the text that need rewording, paraphrasing, or a readability check. 

If your AI score is still too high, remember that Ludwig is not just an AI content detector: you can rewrite your sentence using Ludwig’s rephrasing tool (Rewrite) or Edit r for longer texts that need a grammar checker, paraphraser, and readability checker altogether. 

In fact, if you need an essay checker, a grammar check of an entire paper, or a thorough edit of longer texts, you can rework your entire text at once in Ludwig’s Editor, the space for editing, checking, and rephrasing texts longer than 260 characters.

Ludwig supports analyzing up to 3,000 characters for each AI check for free. Register to use AI Detector for free up to five times/day! Do you need more? You can get 5,000 characters per query with Premium, and up to 10,000 characters per query with Premium Plus. 

Be aware that the longer the text is, the easier it is for AI Detector to achieve accuracy in detecting AI. This is because the longer the text a machine generates, the higher the possibility of falling into hallucinations and repetitions, two factors that AI Detectors keep in high regard when scanning for AI.

In fact, Ludwig AI Detector asks you to provide it with a text long at least 500 characters, the minimum necessary to grant a reliability rate that is worth its name. This makes it the perfect essay checker for AI writing.

Yes, Ludwig detects ChatGPT writing with accuracy. But AI Detector is not just a GPT checker, it also checks for AI models like Llama, GPT-3, GPT-4, Claude, and Gemini. “One AI checker to rule them all,” one may say. Detector can function properly as a plagiarism checker.

Register and use AI Detector for free five times a day. If you need more, our Premium and Premium Plus plans offer AI Detector–and all Ludwig’s tools included–for a reasonable fee, billable monthly or annually. 

Check out our plans and their features in detail at this page.

Ludwig offers a vast array of high-quality paraphrasing options at the most competitive price-for-value rate on the market.

Ludwig prioritizes precision over excessive flagging, ensuring that content marked as AI-generated has a very high likelihood of being accurate. This approach reduces unnecessary false positives, as we believe that it’s better to mark something AI-generated as human-looking, rather than having something written by humans marked unjustly as machine-generated.