F1 is heading into its biggest regulation change next season, with new chassis and engine rules, and it is unclear which team will be in better shape.
Russell, who has won two races in 2025 and is fourth in the Drivers’ Championship with six races remaining, said: “I’m really proud to continue our journey together. Next year will mark my 10th since I signed with Mercedes in 2017.
“It’s been such a long and successful partnership with the team so far and I can’t wait to see what lies ahead, particularly as we embark on regulation changes.
“We are all incredibly focused on making this happen and, for me personally, building on what has been my best season in F1 to date.”
Antonelli will enter his second season having replaced Lewis Hamilton at the team following the seven-time champion’s move to Ferrari.
The 19-year-old Italian took pole position for the sprint race in Miami in May and his first podium in Canada in June, where Russell took his first victory of the season.
But Antonelli has had a turbulent year, and a series of errors during the European season led Wolff to describe his performance at the Italian Grand Prix as “disappointing”.
Since then, he has finished fourth and fifth at the Azerbaijan and Singapore Grands Prix.
Antonelli admitted that pressure was put on him at times during his rookie season, but the team believes in his potential as a future winner.
He said: “I’m very excited to continue with the team. I’ve learned so much in my first season in F1, both in the good times and in the difficult ones.”
“All of this has made me stronger, not only as a driver but also as a teammate. I would like to thank Toto and everyone at Brackley and Brixworth for their continued support and belief in me.”