Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue	$ 37	$ 9	$ 407	$ 304
Cost of revenue	34,256	21,453	82,549	63,110
Gross profit	(34,219)	(21,444)	(82,142)	(62,806)
Operating expenses
Research and development	6,640	5,180	18,063	15,185
Sales and marketing	6,380	2,601	10,882	6,857
General and administrative	19,690	8,278	47,461	39,327
Settlement on accrued research and development expenses	0	(14,935)	0	(14,935)
Asset impairment	138,483	57	138,483	7,673
Loss on disposal of property, plant, and equipment	1,395	2,582	1,715	2,511
Total operating expenses	172,588	3,763	216,604	56,618
Loss from operations	(206,807)	(25,207)	(298,746)	(119,424)
Other income, net	(99)	361	1,475	599
Loss before income taxes	(222,182)	(77,687)	(357,126)	(234,585)
Income tax expense	(5)	1	(15)	(3)
Net loss	(222,187)	(77,686)	(357,141)	(234,588)
Total comprehensive loss
Net loss	(222,187)	(77,686)	(357,141)	(234,588)
Foreign currency translation adjustment	(969)	(2,510)	(1,558)	(1,646)
Total comprehensive loss	$ (223,156)	$ (80,196)	$ (358,699)	$ (236,234)
Class A Common Stock
Net loss per share of Class A and B Common Stock attributable to common stockholders:
Basic (in dollars per share)	$ (1.55)	$ (5.32)	$ (3.31)	$ (27.42)
Diluted (in dollars per share)	$ (1.55)	$ (5.32)	$ (3.31)	$ (27.42)
Weighted average common shares used in computing net loss per share of Class A and Class B Common Stock:
Basic (in shares)	143,159,121	15,379,402	107,784,739	8,707,165
Diluted (in shares)	143,159,121	15,379,402	107,784,739	8,707,165
Class B Common Stock
Net loss per share of Class A and B Common Stock attributable to common stockholders:
Basic (in dollars per share)	$ (1.55)	$ (5.32)	$ (3.31)	$ (27.42)
Diluted (in dollars per share)	$ (1.55)	$ (5.32)	$ (3.31)	$ (27.42)
Weighted average common shares used in computing net loss per share of Class A and Class B Common Stock:
Basic (in shares)	143,159,121	15,379,402	107,784,739	8,707,165
Diluted (in shares)	143,159,121	15,379,402	107,784,739	8,707,165
Nonrelated Party
Operating expenses
Change in fair value of notes payable, warrant liabilities, and derivative call options	$ 31,341	$ 8,287	$ 36,721	$ 28,927
Loss on settlement of notes payable	(46,517)	(59,128)	(84,895)	(117,509)
Interest expense	(2,244)	(1,442)	(5,358)	(5,386)
Related Party
Operating expenses
Change in fair value of notes payable, warrant liabilities, and derivative call options	2,144	654	(3,283)	315
Loss on settlement of notes payable	0	0	(3,040)	(14,295)
Interest expense	$ 0	$ (1,212)	$ 0	$ (7,812)