v3.25.4
Stock-based Compensation - Stock Option Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Options [Roll Forward]    
Balance as of December 31, 2024 (in shares) 598,540  
Granted (in shares) 11,174,201  
Cancelled/forfeited (in shares) (125,814)  
Balance as of December 31, 2025 (in shares) 11,646,927 598,540
Vested and expected to vest at December 31, 2025 (in shares) 10,559,625  
Exercisable at December 31, 2025 (in shares) 1,683,986  
Weighted Average Exercise Price [Roll Forward]    
Balance as of December 31, 2024 (in dollars per share) $ 7.08  
Granted (in dollars per share) 0.61  
Cancelled/forfeited (in dollars per share) 4.50  
Balance as of December 31, 2025 (in dollars per share) 0.90 $ 7.08
Vested and expected to vest at December 31, 2025 (in dollars per share) 0.93  
Exercisable at December 31, 2025 (in dollars per share) $ 2.51  
Weighted Average Remaining Contractual Life (years) [Roll Forward]    
Balance as of December 31, 2025 9 years 6 months 7 days 9 years
Vested and expected to vest at December 31, 2025 9 years 6 months 7 days  
Exercisable at December 31, 2025 9 years 2 months 15 days