CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues:
Revenues		$ 35,616	$ 15,092	$ 15,357
Cost of revenues:
Cost of revenues		9,901	4,519	2,025
Gross margin:
Gross margin		25,715	10,573	13,332
Operating expenses:
Research and development	[1]	259,892	206,910	138,273
General and administrative	[1]	138,491	75,883	61,629
Total operating expenses		398,383	282,793	199,902
Loss from operations		(372,668)	(272,220)	(186,570)
Other expense (income):
Interest expense	[2]	12,972	11,427	352
Interest income		(20,147)	(8,516)	(12,389)
Loss on issuance of convertible preferred stock		379,619	0	0
Total other expense (income)		372,444	2,911	(12,037)
Loss before income taxes		(745,112)	(275,131)	(174,533)
Income tax expense		756	514	1,030
Net loss		(745,868)	(275,645)	(175,563)
Preferred Stock PIK dividend		217,353	30,701	26,368
Net loss attributable to common stockholders, basic		(963,221)	(306,346)	(201,931)
Net loss attributable to common stockholders, diluted		$ (963,221)	$ (306,346)	$ (201,931)
Net loss per share attributable to common stockholders, basic (in dollars per share)		$ (12.85)	$ (6.77)	$ (4.50)
Net loss per share attributable to common stockholders, diluted (in dollars per share)		$ (12.85)	$ (6.77)	$ (4.50)
Comprehensive loss:
Net loss		$ (745,868)	$ (275,645)	$ (175,563)
Foreign currency translation adjustments		197	(194)	37
Comprehensive loss		(745,671)	(275,839)	(175,526)
Product
Revenues:
Revenues	[3]	12,429	1,857	206
Cost of revenues:
Cost of revenues		4,003	1,521	214
Gross margin:
Gross margin		8,426	336	(8)
Service
Revenues:
Revenues	[3]	23,187	13,235	15,151
Cost of revenues:
Cost of revenues		5,898	2,998	1,811
Gross margin:
Gross margin		$ 17,289	$ 10,237	$ 13,340

[1] Includes related party amounts of $6,073, $0 and $0 (research and development) and $1,084, $(2,899) and $(1,441) (general and administrative) as of December 31, 2025, 2024 and 2023, respectively (see Note 14)

[2] Includes related party amounts of $1,403, $0 and $0 as of December 31, 2025, 2024 and 2023, respectively (see Note 14).

[3] Includes related party amounts of $0, $1,075 and $167 (product revenue) and $8,000, $5,477 and $4,536 (service revenue) as of December 31, 2025, 2024 and 2023, respectively (see Note 14).