v3.26.3
Stock-Based Compensation - Schedule of Summarized Option Activity Under Option Plan (Details) - 2015 Stock Plan and 2025 Stock Option Plan
 9 Months Ended
Sep. 30, 2026
$ / shares
shares
Options Issued and Outstanding  
Beginning Balance (in shares) | shares 76,886,581
Options granted (in shares) | shares 5,729,480
Options exercised (in shares) | shares (1,229,353)
Options forfeited (in shares) | shares (4,084,533)
Options expired (in shares) | shares (3,800,533)
Ending balance (in shares) | shares 73,501,642
Options vested and expected to vest (in shares) | shares 70,705,497
Options vested and exercisable (in shares) | shares 64,145,108
Weighted Average Exercise Price  
Beginning balance (in dollars per share) | $ / shares $ 0.17
Options granted (in dollars per share) | $ / shares 0.67
Options exercised (in dollars per share) | $ / shares 0.03
Options forfeited (in dollars per share) | $ / shares 0.35
Options expired (in dollars per share) | $ / shares 0.02
Ending balance (in dollars per share) | $ / shares 0.21
Options vested and expected to vest (in dollars per share) | $ / shares 0.21
Options vested and exercisable (in dollars per share) | $ / shares $ 0.15