v3.26.1
Share based compensation - Activities of options and PSUs (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Number of options  
Outstanding at the beginning (in shares) | shares 15,935,056
Granted (in shares) | shares 7,850,532
Forfeited (in shares) | shares (490,137)
Exercised (in shares) | shares (663,908)
Outstanding at the end (in shares) | shares 22,631,543
Exercisable (in shares) | shares 13,853,496
Weighted Average Exercise Price  
Outstanding at the beginning (in USD per share) $ 6.65
Granted (in USD per share) 0.34
Forfeited (in USD per share) 0.75
Exercised (in USD per share) 0.50
Outstanding at the end (in USD per share) 4.77
Exercisable (in USD per share) 7.55
Weighted Average Fair value at grant date  
Outstanding at the beginning (in USD per share) 2.57
Granted (in USD per share) 1.66
Forfeited (in USD per share) 1.27
Exercised ( in USD per share) 1.22
Outstanding at the end (in USD per share) 2.32
Exercisable (in USD per share) $ 2.50
Weighted remaining contractual years  
Outstanding 7 years 6 months 7 days
Exercisable 6 years 2 months 26 days
Outstanding | $ $ 52,545
Exercisable | $ $ 34,602