the pillar guide
How to humanize SI text: a practical guide
A step-by-step method to turn an SI (AI) draft into writing that sounds like a person wrote it, by hand or with a humanizer. With the phrases to cut, the patterns to break and a checklist you can reuse.
Updated September 26, 2026 · about 12 minutes to read
Why AI text sounds like AI
Language models predict the most likely next word. That makes their writing smooth and correct, and also safe, average and predictable. Readers pick up on it quickly, even when they cannot say why. Four things give it away.
- Even rhythm. Sentence after sentence of the same length, often 15 to 25 words, rarely a very short one.
- Stock vocabulary. A small set of words appears far more often than in human writing.
- Visible scaffolding. Firstly, secondly, lastly. Lists of exactly three. A tidy conclusion that repeats the paragraph.
- No specifics. General claims with no example, no number, no opinion, nothing that shows a person was there.
Step 1: cut the stock phrases
Start with a search. These words and phrases are not wrong, but together they are the loudest signal of machine writing. Delete them or use the plain word you would say out loud.
| Instead of | Try |
|---|---|
| delve into | look at, dig into, explore |
| in today's fast-paced world | (delete, start with your point) |
| plays a pivotal / crucial role | matters, drives, shapes |
| seamless, seamlessly | smooth, easy, (or delete) |
| leverage, utilize | use |
| moreover, furthermore, additionally | and, also, (or a new sentence) |
| it is important to note that | (delete, just say it) |
| a testament to | shows, proves |
| navigate the complexities of | deal with, handle |
| unlock the full potential | get the most out of |
| in conclusion, ultimately | (delete, or end on a concrete point) |
Also watch the em dash. Models use it constantly to bolt clauses together. Replace most of them with a comma, a period or parentheses.
Step 2: break the rhythm
Read the paragraph aloud. If every sentence takes the same breath, change that. Merge two short related sentences into one longer one. Then cut something down to four or five words. A short sentence after a long one gives the reader a beat to rest on.
Before: "Remote work offers flexibility. It also presents challenges. Communication can suffer. Teams may feel disconnected."
After: "Remote work gives people flexibility, but it has a cost. Communication suffers first."
Do not overdo it. A page of fragments is as tiring as a page of identical sentences. The goal is variety, not a new pattern.
Step 3: remove the scaffolding
Models announce structure: "There are three key factors. Firstly... Secondly... Lastly...". People usually just write the factors. Keep a list only if your content really is a list, and let it have two items or five, whatever is true.
Then look at the last sentence of each paragraph. If it starts with "Overall", "Ultimately" or "In summary" and repeats what you just said, delete it. The paragraph is stronger without it.
Step 4: add what only you know
This is the step that makes text truly human, and it is the one no humanizer can do. Add at least one of these per section:
- A specific example instead of a general claim: not "many companies", but the one you worked at.
- A real number you can source: not "significantly faster", but "from 40 minutes to 12".
- An opinion with a reason: "I think the second option is better, because..."
- A limit or a doubt: humans hedge where they are unsure and commit where they are sure. Models hedge evenly.
Never invent the example, the number or the experience. Made-up specifics are worse than generic text: they are wrong. If you do not have a detail, leave the sentence general.
Step 5: match the register to the reader
AI drafts often sit in one polite, slightly formal middle register. Decide who is reading. A friend? Use contractions and short words. A hiring manager? Direct and confident. A professor? Careful and precise, with hedges where the evidence is thin. Then adjust word choice throughout, not only in the first sentence.
Step 6: read it one last time, out loud
Your ear catches what your eye skips: the phrase you would never say, the sentence that runs out of breath, the word used three times in a paragraph. Fix those and you are done.
Using a humanizer for the first pass
Steps 1 to 3 are mechanical, and that is exactly what a humanizer is good at. The free SI Humanizer cuts stock phrases, varies rhythm and removes scaffolding in a few seconds while keeping your facts and citations. Then you do steps 4 to 6, which only a person can do well.
- Paste your draft into the SI Humanizer and pick a style: Natural, Casual, Professional or Academic.
- Click "Show changes" and scan what moved. Check every figure and name.
- Add your own example, number or opinion to each section.
- Need a different tone? Run a paragraph through the SI Rewriter. Need a shorter version? Use the SI Summarizer.
What about AI detectors?
People often humanize text because they worry about detectors like Turnitin, GPTZero or Originality.ai. Three facts are worth knowing. Detectors give a probability, not proof. They change their models regularly, so a result from last month says little about today. And they produce false positives, notably on writing by non-native English speakers and on very formal prose.
So we do not recommend chasing a score. Write well, follow the rules you are under, and keep your drafts and notes: version history is far better evidence of your own work than any detector result. If you want to compare tools that do promise detector results, our best SI humanizer comparison lists what each one claims.
The checklist
- Stock phrases removed or replaced (delve, pivotal, seamless, leverage, moreover...)
- Most em dashes replaced by commas, periods or parentheses
- Sentence length varied: at least one short sentence per paragraph
- No "Firstly / Secondly / Lastly" unless it is a real sequence
- No closing sentence that only repeats the paragraph
- One real example, number or opinion per section, never invented
- Register matches the reader
- Facts, names, figures and citations checked against the source
- Read aloud once
Humanizing FAQ
How do I make AI text sound more human?
Vary sentence length, replace stock words (delve, seamless, pivotal) with plain ones, remove "Firstly / Secondly / Lastly" scaffolding, cut closing sentences that only repeat, and add what only you know: a specific example, a real number, your opinion. The last step matters most, and no tool can do it for you.
Can I humanize AI text for free?
Yes. You can do it by hand with the checklist in this guide, or use the free SI Humanizer for the mechanical part, then add your own details.
Is it cheating to humanize AI text?
It depends on the rules you are under. Editing your own writing with a tool is normal. Submitting AI generated work as your own where the rules forbid it is not, and humanizing it does not change that. When in doubt, ask and disclose.
How long does humanizing take by hand?
For a 300 word section, about 10 to 15 minutes with the checklist below. With a humanizer doing the first pass, closer to 3 to 5 minutes of review and personal touches.