Segment Information - Schedule of Revenue, Significant Expenses, and Segment Profit and Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenue	$ 7,566	$ 7,582
Operating costs and expenses excluding stock-based compensation:
Cost of revenue (excluding depreciation and amortization)	4,315	3,414
Research and development	39,953	32,368
Sales and marketing	8,610	6,701
General and administrative	23,806	14,020
Stock-based compensation	34,166	23,659
Other segment items:
(Gain) loss on change in fair value of warrant liabilities	(38,494)	(8,627)
Other (income) expense, net	(51)	134
Income tax (benefit) expense	12	8
Net loss	(32,252)	(39,592)
Operating Segment [Member]
Segment Reporting Information [Line Items]
Revenue	7,566	7,582
Operating costs and expenses excluding stock-based compensation:
Cost of revenue (excluding depreciation and amortization)	3,252	2,409
Research and development	22,561	20,002
Sales and marketing	4,254	3,926
General and administrative	13,364	8,105
Stock-based compensation	33,253	22,061
Depreciation and amortization	6,561	3,955
Other segment items:
(Gain) loss on change in fair value of warrant liabilities	(38,494)	(8,627)
Interest income, net	(4,894)	(4,799)
Other (income) expense, net	(51)	134
Income tax (benefit) expense	12	8
Net loss	$ (32,252)	$ (39,592)