CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	At-the-Market Offering	2022 Subscription Agreement	Underwriting Agreement	2023 Subscription Agreement	2024 Underwriting Agreement	2024 Subscription Agreement	Series A Redeemable Convertible Preferred Stock	Series B Redeemable Convertible Preferred Stock	Common Stock	Common Stock At-the-Market Offering	Common Stock 2022 Subscription Agreement	Common Stock Underwriting Agreement	Common Stock 2023 Subscription Agreement	Common Stock 2024 Underwriting Agreement	Common Stock 2024 Subscription Agreement	Additional Paid-In Capital	Additional Paid-In Capital At-the-Market Offering	Additional Paid-In Capital 2022 Subscription Agreement	Additional Paid-In Capital Underwriting Agreement	Additional Paid-In Capital 2023 Subscription Agreement	Additional Paid-In Capital 2024 Underwriting Agreement	Additional Paid-In Capital 2024 Subscription Agreement	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021	0
Beginning balance at Dec. 31, 2021	$ 0
Ending balance (in shares) at Dec. 31, 2022	0
Ending balance at Dec. 31, 2022	$ 0
Beginning balance (in shares) at Dec. 31, 2021										1,647,555,590
Beginning balance at Dec. 31, 2021	3,909,355									$ 165							$ 9,995,778							$ (20,716)	$ 0	$ (6,065,872)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,304,460)																									(1,304,460)
Other comprehensive income (loss)	(11,572)																								(11,572)
Tax withholding payments for net settlement of employee awards	(218,789)																(218,789)
Issuance of common stock upon vesting of employee RSUs (in shares)										15,217,096
Issuance of common stock upon vesting of employee RSUs	0									$ 1							(1)
Issuance of common stock under employee stock purchase plan (in shares)										2,106,158
Issuance of common stock under employee stock purchase plan	24,562																24,562
Issuance of common stock upon exercise of stock options (in shares)										22,519,879
Issuance of common stock upon exercise of stock options	17,788									$ 2							17,786
Issuance of common stock (in shares)											56,203,334	85,712,679
Issuance of common stock		$ 594,317	$ 915,000								$ 6	$ 9						$ 594,311	$ 914,991
Stock-based compensation	423,500																423,500
Ending balance (in shares) at Dec. 31, 2022										1,829,314,736
Ending balance at Dec. 31, 2022	$ 4,349,701									$ 183							11,752,138							(20,716)	(11,572)	(7,370,332)
Ending balance (in shares) at Dec. 31, 2023	0							0	0
Ending balance at Dec. 31, 2023	$ 0							$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,828,420)																									(2,828,420)
Other comprehensive income (loss)	16,422																								16,422
Tax withholding payments for net settlement of employee awards	(17,615)																(17,615)
Issuance of common stock upon vesting of employee RSUs (in shares)										16,947,760
Issuance of common stock upon vesting of employee RSUs	0									$ 2							(2)
Issuance of common stock under employee stock purchase plan (in shares)										4,748,875
Issuance of common stock under employee stock purchase plan	23,836																23,836
Issuance of common stock upon exercise of stock options (in shares)										9,003,642
Issuance of common stock upon exercise of stock options	10,343									$ 1							10,342
Issuance of common stock (in shares)													173,544,948	265,693,703
Issuance of common stock				$ 1,184,224	$ 1,812,641								$ 17	$ 27						$ 1,184,207	$ 1,812,614
Stock-based compensation	$ 300,560																300,560
Ending balance (in shares) at Dec. 31, 2023	2,299,253,664									2,299,253,664
Ending balance at Dec. 31, 2023	$ 4,851,692									$ 230							15,066,080							(20,716)	4,850	(10,198,752)
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of Series redeemable convertible preferred stock, net of derivative liability and issuance costs (related party) (in shares)								100,000	75,000
Issuance of Series redeemable convertible preferred stock, net of derivative liability and issuance costs (related party)								$ 500,549	$ 451,683
Accretion of redeemable convertible preferred stock (related party)	$ 347,610
Ending balance (in shares) at Dec. 31, 2024	175,000							100,000	75,000
Ending balance at Dec. 31, 2024	$ 1,299,842							$ 730,025	$ 569,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,713,942)																									(2,713,942)
Other comprehensive income (loss)	(6,949)																								(6,949)
Tax withholding payments for net settlement of employee awards	(10,021)																(10,021)
Issuance of common stock upon vesting of employee RSUs (in shares)										44,945,260
Issuance of common stock upon vesting of employee RSUs	0									$ 5							(5)
Issuance of common stock under employee stock purchase plan (in shares)										8,976,458
Issuance of common stock under employee stock purchase plan	$ 19,208																19,208
Issuance of common stock upon exercise of stock options (in shares)	4,513,606									4,513,606
Issuance of common stock upon exercise of stock options	$ 4,883																4,883
Issuance of common stock (in shares)															277,484,525	396,188,386
Issuance of common stock						$ 718,357	$ 1,025,660								$ 28	$ 40						$ 718,329	$ 1,025,620
Accretion of redeemable convertible preferred stock (related party)	(347,610)																(347,610)
Stock-based compensation	$ 331,534																331,534
Ending balance (in shares) at Dec. 31, 2024	3,031,361,899									3,031,361,899
Ending balance at Dec. 31, 2024	$ 3,872,812									$ 303							$ 16,808,018							$ (20,716)	$ (2,099)	$ (12,912,694)