It depends.
Your stipend income sounds like it was earned as part of an active work or business activity as you were performing routine business activities to earn this income. As such, it would be considered earned income.
What is earned income?
In regards to having a filing requirement, as you are a dependent, assuming you are single, you would not have to file a tax return as your gross income is below the filing threshold of $12,200.
Please see the attached links for more information.
Do I need to file a return
Gross income amount for dependents
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