Net Loss Per Share Attributable to Common shareholders - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	27,911,041	212,148,288
Series A Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	0	121,448,823
Series B Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	0	7,407,408
Series C Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	0	29,050,209
Series D Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	0	25,629,071
Outstanding warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	0	6,273,609
Unvested RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	4,363,462	180,125
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	23,503,976	21,191,043
Unvested shares subject to repurchase
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common shareholders (in shares)	43,603	968,000