免费AI写作模式检查器。根据句子长度方差、突发性、过渡短语重复、模糊语、结构一致性和N元语法重复对文本进行评分。不声称检测AI——展示可测量的模式。
未针对 简体中文 设计
该工具针对英语（和一些相近语言）校准。简体中文 的结果可能不准确。
Use it as one signal when reviewing flagged text — not a verdict. AI detectors that claim definitive accuracy are unreliable; this tool gives you measurable patterns you can investigate, with full transparency about what each metric means.
Most AI detectors are black-box services that report a single confidence number. This tool shows you each underlying metric so you can decide what matters for your context.
The detector measures six linguistic signals — burstiness, uniformity, transition-phrase rate, hedge rate, 3-gram repetition, and vocabulary repetition — then weights them by the writing-mode preset.
Burstiness is the standard deviation of sentence length divided by the mean. Human writing is bursty; AI writing tends to flatten.
It does not claim authorship — only that the text contains patterns commonly associated with machine-generated writing. Treat it as one signal, not a verdict.
No. It surfaces measurable linguistic patterns commonly associated with machine-generated text. Reliable AI authorship detection is not currently possible.
Sentence-length burstiness, transition phrase rate, n-gram repetition, hedging language, and vocabulary repetition. AI writing tends to have low burstiness and high transition-phrase use.
Human writing alternates short and long sentences ("bursts"). AI writing tends to produce sentences of similar length.
Easily — paraphrasing or human editing changes burstiness. Use the score as one signal among many.
输入
In conclusion, it is important to note that machine learning has revolutionized many industries. Furthermore, it can be argued that artificial intelligence will continue to play a pivotal role in our digital age.
输出
AI-pattern score: 72 / 100 — Many AI-style patterns.
Both sentences use formulaic transition openings ("In conclusion", "Furthermore"), heavy hedging ("can be argued"), and similar sentence lengths. The transition-phrase rate alone pushes the score into the high band.