I'm 97% certain Akio is male.
According to a dataset of 309, the average Akio is around 46 years old.
From Japanese 昭 (aki) meaning "bright, luminous" combined with 夫 (o) meaning "man, husband", 男 (o) meaning "male" or 雄 (o) meaning "hero, manly". Other kanji combinations are possible.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.