The 17-year-old, currently on loan at FC Iberia 1999 from Kolkheti 1913, will sign a five-year contract at the Emirates Stadium worth around €4.5million, according to Georgian outlet GeoTeam and transfer journalist Fabrizio Romano.
Bartishvili is due to travel to London for a medical this week before putting pen to paper, though he will not officially join Arsenal's squad until 2027, when he turns 18 and becomes eligible to move to England under domestic regulations.
Arsenal's interest in the left-winger has been driven in part by scout Maurizio Micheli, the same recruitment figure credited with first identifying Khvicha Kvaratskhelia before his move to Napoli.
Comparisons between the two Georgians have followed Bartishvili throughout his rapid rise, with his composure and eye for goal at such a young age drawing attention from clubs across Europe over the course of the summer.
Bartishvili came through Dinamo Tbilisi's youth academy before making his senior breakthrough at Kolkheti 1913, becoming the youngest player ever to feature in Georgia's Erovnuli Liga when he appeared against Samgurali Tsqaltubo in April 2025 at just 16 years and two days old.
He has continued his development on loan at Iberia 1999, contributing goals and assists in a Champions League qualifying campaign and earning regular selection for Georgia's youth sides from Under-16 through to Under-21 level.
The agreement gives Arsenal first refusal on one of Georgian football's most exciting young prospects well in advance of his 18th birthday, a strategy the club has increasingly employed to secure highly rated teenagers before they attract sustained interest from Europe's traditional powerhouses.
Liverpool and Juventus were among the other clubs credited with interest in Bartishvili before Arsenal moved to secure an agreement, with the north London club having opened talks around two months ago while the player remained on loan in Tbilisi.
His current loan at Iberia runs until the end of the Georgian season in December, with domestic football there operating on a calendar-year basis rather than the August-to-May structure common across most of Europe.
Bartishvili shared his gratitude for the reaction to the news on social media following confirmation of the agreement. For Arsenal, the deal represents a long-term investment in a player they hope can develop into a first-team option once eligibility rules allow him to join the senior squad in Premier League football.