CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents		$ 1,479,470	$ 1,710,227
Accounts receivable	[1]	3,609	5,747
Prepaid expenses and other current assets	[1]	20,545	23,494
Total current assets		1,503,624	1,739,468
Property and equipment, net		402,753	348,540
Operating lease right-of-use assets		20,675	16,417
Other assets		6,400	1,840
Total assets		1,933,452	2,106,265
Current liabilities:
Accounts payable		22,808	24,503
Accrued expenses		43,606	35,109
Payroll liabilities		16,344	3,334
Deferred revenue	[2]	7,015	3,704
Operating lease liabilities		1,859	1,551
Notes payable		8,547	5,711
Other current liabilities		3,728	2,483
Total current liabilities		103,907	76,395
Deferred revenue, non-current	[2]	14,879	12,550
Operating lease liabilities, non-current		20,885	16,838
Notes payable, non-current	[3]	175,405	179,799
Other liabilities		3,199	2,847
Total liabilities		318,275	288,429
Commitments and contingencies (see Note 7)
Stockholders’ equity:
Preferred stock, $0.0001 par value Authorized - 50,000,000 shares Issued and outstanding - 0 shares in 2025 and 2024		0	0
Additional paid-in capital		3,799,864	3,731,273
Accumulated deficit		(2,184,512)	(1,913,450)
Accumulated other comprehensive loss		(199)	(10)
Total stockholders’ equity		1,615,177	1,817,836
Total liabilities and stockholders’ equity		1,933,452	2,106,265
Class A Common Stock
Stockholders’ equity:
Common stock		23	22
Class B Common Stock
Stockholders’ equity:
Common stock		$ 1	$ 1

[1] Includes related party amounts of $1,336 and $2,202 (accounts receivable) and $0 and $2,802 (prepaid expenses and other current assets) as of June 30, 2026, and December 31, 2025, respectively (see Note 12).

[2] Includes related party amounts of $2,097 and $1,011 (deferred revenue) and $10,564 and $8,290 (deferred revenue, non-current) as of June 30, 2026, and December 31, 2025, respectively (see Note 12).

[3] Includes related party amounts of $32,879 and $32,626 as of June 30, 2026 and December 31, 2025, respectively (see Note 12).