"While specific details about the company's founding are not widely documented, it appears to have been established in the 1990s." That's a model guessing and admitting it.
What it looks like
As of my last training update / knowledge cutoff
While specific details are limited...
Based on available information...
not widely documented / maintains a low profile
Why it reads as AI
The text reveals a model's limits, and the guess that follows is often wrong. It's a reliability problem as much as a style one.
Examples and fixes
BeforeInformation about her early life is not widely documented, suggesting she maintains a low profile.
After(Cut it, or state what the sources do show.)
How to fix it
Check the fact yourself or remove it.
If a source doesn't say something, write "The sources don't say" once, plainly.
When it's fine
Real research notes saying what's unknown are useful. The tell is the model's own phrasing.
Check your own text for this pattern
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