Make AI text read
naturally for Compilatio.
Compilatio is a European academic-integrity tool that pairs plagiarism checking with AI-content detection, widely used by universities and schools across France and the rest of Europe. Here's how its AI scoring actually works, what its false-positive record looks like, and the honest version of what a humanizer can and can't do about it.
How Compilatio works
Compilatio's AI detector estimates the probability that a passage was produced by a large language model such as ChatGPT, Claude, or Gemini, returning a likelihood rather than a yes-or-no verdict. Like most detectors it keys on statistical regularity — how predictable the word choices are and how evenly the sentences are paced. Text that is too predictable and too uniform reads as machine-written, while human writing tends to vary more. It runs alongside its plagiarism engine, so a submission can trigger both a similarity match and an AI flag.
False positives
Compilatio reports a probability, not proof, and AI detectors broadly misfire on genuinely human writing. False positives cluster on formulaic, simple, or non-native and ESL English, whose low perplexity and steady cadence resemble AI output. A high AI likelihood is a signal worth a conversation, not a verdict — treat any single score that way.
What a rewrite actually looks like
Here's the same paragraph before and after Humanizer — the structure, rhythm, and word choice change, not just a few swapped synonyms. The percentage is Sapling's AI-likelihood estimate, shown on every rewrite. It's a signal, not a guarantee against Compilatio.
AI has become an integral part of modern content creation. With the advent of large language models, the ability to generate high-quality text has been revolutionized, allowing for unprecedented efficiency in writing workflows.
Recent advances in large language models have genuinely reshaped how people write. What used to take days of drafting can now happen in an afternoon — though how much it helps still depends on the field, and we're all figuring out the limits.
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Free tool runs Claude Haiku, one pass. Pro (app & web) uses the stronger model with a detector-guided retry loop, longer text, and unlimited rewrites.
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