The youngster has joined Swansea City for an undisclosed fee, subject to international clearance.
The 19-year-old has signed a three-year contract at the Liberty Stadium.
“I am excited to join because this is a big club,” Biabi told the club’s official website.
“Obviously Stephen and Jay arrived here from Falkirk, so that will help me settle into the club. I’ve spoken to them both and they’ve made feel very welcome.
“I’ve seen Jay play in big games for the first team in the Premier League and cup and I would like to follow in their footsteps.”
BREAKING: @SwansOfficial have completed the signing of Botti Biabi from @falkirkbairns for an undisclosed fee. pic.twitter.com/eECAXPtnzn
— Swansea City FC (@SwansOfficial) August 17, 2015