Tyra Banks revealed her pride and joy -- showing the world what a top model baby looks like ... and he's adorable.
Tyra posted the pic on social media Sunday, captioning it, "This is the Happiest Valentine's Day of my life. York, Daddy @erikasla and I send you so much love."
As we reported ... the 42-year-old and her bf Erik Asla had a little boy with the help of a surrogate in January.
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