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See exactly which sentences are AI-generated. Every sentence gets its own probability score — not just an overall number.
Get AI vs. human probability scores in seconds. Clear verdict with confidence percentage and detailed analysis breakdown.
Works with text from ChatGPT, GPT-4, Claude, Gemini, Llama, Copilot, and any other AI writing tool on the market.
Paste your text into Filator's AI content detector, click "Check for AI," and get instant results. Our detector uses a dedicated AI classification model to calculate an AI vs. human probability score — with a clear verdict, confidence level, and sentence-by-sentence breakdown.
Whether you're a teacher checking student submissions, an editor verifying articles, or a content creator ensuring originality — our AI detector identifies text generated by ChatGPT, GPT-4, Claude, Gemini, Llama, Copilot, and other language models.
Unlike basic detectors that only give an overall score, Filator breaks down every sentence with its own AI probability — so you can see exactly which parts were AI-generated.
You get a plain-English verdict (Likely AI, Mixed, Likely Human) plus percentage scores and a detailed analysis — not just a confusing number.
Detects text from ChatGPT (GPT-3.5, GPT-4, GPT-4o), Claude, Google Gemini, Meta Llama, Microsoft Copilot, DeepSeek, and any other LLM.
Filator isn't just a detector — it's a complete AI platform with content rewriting, email writing, essay generation, code tools, image generation, and more.
Strong indicators of AI generation — repetitive patterns, uniform sentence length, predictable vocabulary.
Some AI markers present, but not conclusive. Could be AI-assisted writing or a formal writing style.
Contains both AI and human writing indicators. Common with AI-generated text that was edited by a person.
Mostly human-written patterns detected, with minor elements that could be AI-influenced.
Strong indicators of human authorship — varied sentence structure, personal voice, natural flow.
Check student essays and assignments for AI-generated content before grading. The sentence breakdown shows exactly which parts need attention.
Verify that freelancer submissions are original human-written content, not AI-generated filler.
Ensure blog posts and landing pages pass AI detection before publishing for search rankings.
Self-check your own writing to make sure it doesn't accidentally trigger AI detectors.
Filator uses a dedicated AI classification model (not a generic chatbot) to analyze text for patterns typical of machine-generated content. It evaluates token probability, sentence structure, vocabulary distribution, and stylistic markers to produce an overall score and per-sentence breakdown.
Yes. The detector works with text from all major AI models including ChatGPT (GPT-3.5, GPT-4, GPT-4o), Anthropic Claude, Google Gemini, Meta Llama, Microsoft Copilot, DeepSeek, and others. It analyzes writing patterns common across all language models.
Unlike basic detectors that only give an overall score, Filator breaks down each individual sentence with its own AI probability percentage. This lets you pinpoint exactly which sentences triggered the detection, making it useful for teachers and editors who need to identify specific AI-written sections.
The minimum is 30 words, but we recommend at least 100 words for the most accurate results. Longer texts give the detector more data points to analyze, which improves confidence in the verdict.
No AI detector is 100% accurate — this is true for every tool on the market, including GPTZero and Copyleaks. Results should be used as one data point, not as definitive proof. Heavily edited AI text or very formal human writing can sometimes produce unexpected results.
Credits scale with text length — 10 credits per 1,000 characters (minimum 10 credits). A typical 500-word check costs about 30 credits. Free users get 10 credits to start. Pro ($9.99/mo) includes 5,000 credits and Premium ($24.99/mo) includes 12,000 credits.
Text that has been paraphrased or humanized by tools may score lower on AI detection. However, significant AI-generated patterns often remain. The detector's "Mixed" verdict is designed to flag content that shows signs of both AI and human involvement.
Sign in and paste any text above to get an instant AI vs. human analysis with sentence-level breakdown. See exactly which parts of your content are flagged as AI-generated.