v3.26.1
Stock-based Compensation - Summary of Stock Option Activity (Details) - Employee Stock Option - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares Outstanding at December 31, 2024 47,461,519  
Shares Granted 11,722,459  
Shares Exercised (772,812)  
Shares Canceled 0  
Shares Outstanding at March 31, 2026 58,411,166 47,461,519
Shares Options exercisable at March 31, 2026 28,705,543  
Weighted-average exercise price, Outstanding at December 31, 2024 $ 3.24  
Weighted-average exercise price, Granted 10.26  
Weighted-average exercise price, Exercised 2.53  
Weighted-average exercise price, Canceled 0  
Weighted-average exercise price, Outstanding at March 31, 2026 4.66 $ 3.24
Weighted-average exercise price, Options exercisable at March 31, 2026 $ 4.18  
Weighted-average remaining contractual term (years), Outstanding 7 years 9 months 29 days 7 years 6 months 18 days
Weighted-average remaining contractual term (years), Options exercisable at March 31, 2026 6 years 8 months 4 days  
Aggregate intrinsic value, Outstanding $ 672,786 $ 61,659
Aggregate intrinsic value, Options exercisable at March 31, 2026 $ 344,377