Simon Wolfe of Capsule Computers writes:
"With an alright visual style, voice acting, and music Red Data Girl doesn’t stray too far to try and go beyond its means. The series does have a few interesting elements, but the problems are visible from the opening title explaining exactly from where the title derives. Plus the somewhat peculiar fluctuation between extremely fast and slow pace, that while never actually hurting the narrative makes the story seem like an awkward whirlwind that keeps the viewer guessing at what is going to happen next. While Red Data Girl only has a few stumbles the lack of anything done absolutely well makes the series only really fair as a whole, but not all that bad."