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APA replaced its ChatGPT citation guidance in September 2025. Here is the reference list format, the in-text citation, and the appendix rule APA currently publishes, plus the one line explaining why APA never treated ChatGPT as personal communication.
Burstiness measures how widely sentence lengths swing across a passage, not how long the average sentence runs. This post explains where the term comes from, how the spread is actually calculated, and why a language model's output tends to settle into a narrow band of lengths.
Perplexity is the number a language model produces to describe how surprised it was by your word choices. This post traces the metric to its 1977 origin, works through the formula, and explains why the same passage can score differently depending on which model is doing the reading.
Every "best AI humanizer" roundup scores every tool a nine out of ten. This one compares real pricing, free tiers, and who each tool actually suits, including the cases where TextPulse is not the right answer.
APA, MLA, Chicago and IEEE each answer a ChatGPT citation differently: as an author, a container, a note, or no citation at all. Here is what each one actually requires, and where citation stops and disclosure begins.
Machine-written prose has a signature: predictable words, uniform sentence rhythm, a dash doing the work of a comma, and an argument shape that restates its own heading. Here is what each level actually looks like, with sourced examples instead of a vibe.