The 6 phrases that get your writing flagged instantly

All AI language models have vocabulary habits. They reach for the same transitions, qualifiers, and filler phrases over and over. Detectors know this, and they maintain lists of these "AI tells": words and phrases that appear in AI output far more often than in normal human writing.

Here are six of the most common offenders, and what to use instead.

1. "Furthermore"

This is the single most flagged transition word in AI detection. AI models use "furthermore" far more often than most people do, and detectors weight it heavily.

Instead: "Also," "and," "on top of that," or just start the next sentence without a transition.

2. "It is important to note"

This phrase adds nothing to the sentence; everything in your paper is presumably important or you wouldn't have included it. Detectors flag it as a high-confidence AI signal.

Instead: Delete the phrase entirely and start with whatever comes after it. "It is important to note that the results were inconclusive" becomes "The results were inconclusive." Stronger and cleaner.

3. "In today's digital landscape"

Any variation of "in today's [adjective] [noun]" (digital landscape, fast-paced world, ever-evolving environment) is a dead giveaway. AI models use this construction as a generic essay opener.

Instead: Be specific about what you're actually referring to. "Since TikTok reached 1 billion users" is more interesting and won't trigger detection.

4. "Delve"

This word barely appeared in everyday writing before 2023. Then ChatGPT made it ubiquitous. Detector teams have written extensively about how delve has become one of the strongest single-word AI signals available.

Instead: "Explore," "examine," "look at," or "dig into." Any of these work and none carry the same AI association.

5. "Crucial" / "Pivotal"

AI models overuse superlative qualifiers. Words like "crucial," "pivotal," "essential," and "indispensable" appear in AI output at elevated rates, especially when used as generic emphasis rather than for genuinely critical points.

Instead: Ask whether you need the qualifier at all. "Testing is crucial for software quality" doesn't say more than "Testing improves software quality." If something truly is critical, explain why rather than just asserting it.

6. "This comprehensive guide"

Self-referential meta-descriptions ("this comprehensive guide," "this article explores," "in this essay we will") are strongly associated with AI output. AI loves to narrate what it's doing instead of just doing it.

Instead: Drop the meta-commentary and get to the content. Your reader doesn't need you to announce that you're about to explain something. Just explain it.

The bigger picture

These six phrases are the most common, but they're part of a larger pattern. AI writing tends to be formal, hedged, and generic where human writing is specific, direct, and personal.

The best defense against AI detection isn't avoiding specific words. It's writing in your own voice. Use the words you'd actually say and include specific examples from your own experience.

GPTypo's vocabulary signal shows you exactly which AI-associated phrases appear in your text, so you can decide which ones to replace and which ones to keep. Sometimes "furthermore" really is the right word. The key is knowing when a detector will flag it.