AI vocabulary · delve
Delve: why underslop refuses to score it
Search this exact question and every result says the same thing: delete delve, it's a giveaway. underslop's linter disagrees on purpose. delve sits in the reported-but-never-counted tier of our checklist, and this page is the record of why that call survived review, because the word's reputation rests on a usage chart with an unexamined confound, not on anything the word itself does wrong.
AI models do use delve above its normal web-text rate, but underslop does not score it. The word's fame as an AI tell traces to a 2024 backlash after Nigerian and Kenyan writers pointed out that delve is ordinary formal business English in their dialects, not a machine signature. Liang et al. (2023) separately found AI detectors misflag 61.3 percent of non-native English TOEFL essays. Scoring delve would punish a dialect, not catch a model, so our linter reports it for visibility and stops there.
What reaching for it signals
Unlike a word such as tapestry, delve doesn't perform a metaphor or assert a hidden connection. It's a plain formal verb meaning to look into something closely, functionally identical to examine or investigate. What changed is frequency, not meaning: the dictionary sense stayed exactly the same, but training data made the word far more common than casual web writing expects. Several 2023 analyses of AI-generated abstracts and cover letters found delve appearing well above its baseline rate in general web text, and that chart circulated as proof of machine authorship on sight. What the chart never showed was who wrote the reference text and RLHF feedback those models trained on. A large share of the outsourced annotators and writers behind that pipeline work out of Lagos, Nairobi, and Manila, where delve is standard formal register, learned in school English, not an affectation borrowed from a machine.
Whether underslop counts it
underslop keeps delve in the computed-but-not-counted tier, the same shelf as the wider greylist, and holds that position even though scoring it would be a one-line change. The refutation is specific, not a hunch: the 2024 viral post naming delve as an AI tell drew documented pushback from Nigerian and Kenyan writers explaining the word is unremarkable in their formal English, and a Stanford study measured detectors misflagging non-native writing at roughly 61 percent. Scoring a dialect marker as a machine marker would penalize exactly the writer this tool exists to defend.
What to write instead
- delve into (as filler, e.g. 'Let's delve into...')state directly what the section covers
- The tell here is usually the throat-clearing frame around the verb, phrases like 'let's' or 'today we'll', not the verb on its own. Cut the frame and delve can often stay exactly where it was.
- deeply delvedelve
- Deeply is padding; the verb already implies depth. This is a redundancy fix, not an AI-tell fix.
- swapping delve out because a list told you toleave it if it's how you'd actually say it
- If delve is your normal register, changing it to satisfy a rumor about AI writing means editing for a reader who doesn't exist.
- delve in a two-line chat messagecheck into it, or look into it
- This is a register mismatch, not an AI signature. Delve reads formal, so it can feel stiff in a Slack DM regardless of who typed it.
Examples
Great question! I'd love to delve into the marketing data with you, let's dive in and see what we find together.
Let's look at the marketing data together and see what it shows.
As an AI language model, I don't have access to your specific account, but I can delve into general renewal trends. Let me know if you'd like me to go deeper on any of these.
I can't see your account, so this is general: here's what renewal trends tend to look like.
Questions
Does AI use the word delve?
More than the average web page, yes. Several 2023 analyses of AI-generated text found it well above baseline. Whether that makes any single instance of delve evidence of AI authorship is a separate question, and the answer is no.
Why does AI love the word delve?
Formal training text, including a large share of outsourced RLHF writing produced in West Africa and East Africa, uses delve at a normal rate for formal register. Models trained on that text picked up the rate along with the register.
What is the word delve?
A plain formal verb meaning to look into something closely, identical to examine or investigate. AI models use it above the average rate, but that isn't proof of authorship: delve is ordinary formal English in several dialects, and flagging it penalizes a dialect.
How do you use delve in a sentence?
The same way you'd use examine: 'The audit delved into three years of expense reports' or 'She delved into the archive looking for the original contract.' Nothing about the sentence changes because a model might also write it.
Why does ChatGPT use the word delve a lot?
Its training data includes a disproportionate amount of formal English from regions and writers where delve is ordinary, not rare. The model learned an accurate rate for that register and applies it everywhere, which is the actual bug, not the word itself.
underslop scores a small set of vocabulary tells and computes a larger greylist it deliberately does not count. Paste a draft to see which of the two your writing is tripping. The free tier caps at 500 words a run.