CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net loss		$ (83,421)	$ (26,257)	$ (58,345)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Stock-based compensation		234,588	10,679	30,235
Depreciation		3,154	1,781	807
Non-cash operating lease expense		2,428	1,232	1,448
Warrants contra revenue		1,395	805	343
Inventory write-downs		168	10,343	110
Accretion of discounts on marketable securities and other		(8,341)	(1,624)	(525)
Changes in operating assets and liabilities
Accounts receivable, net		(30,480)	2,386	(6,037)
Inventory		(19,287)	(5,564)	(19,358)
Prepaid expenses and other assets		(13,031)	(720)	(1,332)
Accounts payable		20,887	(4,264)	2,126
Accrued expenses and other liabilities		31,018	(167)	15,950
Operating lease liability		(2,402)	(1,346)	(1,320)
Net cash provided by (used in) operating activities		136,676	(12,716)	(35,898)
Cash flows from investing activities
Purchases of property and equipment		(34,245)	(2,761)	(3,873)
Purchases of marketable securities		(930,575)	(126,225)	(88,713)
Sales and maturities of marketable securities		208,665	111,214	1,996
Other investing activities		(1,413)	0	0
Net cash used in investing activities		(757,568)	(17,772)	(90,590)
Cash flows from financing activities
Proceeds from issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions		672,198	0	0
Payment of deferred offering costs		(4,801)	(1,407)	0
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs		0	0	149,866
Proceeds from exercises of stock options		5,458	1,115	2,115
Proceeds from employee stock purchase plan		4,160	0	0
Tax withholding related to net share settlements of restricted stock units		(20,111)	0	0
Repurchase of common stock upon termination		(1,066)	(210)	(313)
Net cash provided by (used in) financing activities		655,838	(502)	151,668
Net increase (decrease) in cash, cash equivalents, and restricted cash	[1]	34,946	(30,990)	25,180
Cash, cash equivalents, and restricted cash
Beginning of the year	[1]	45,098	76,088	50,908
End of the year	[1]	80,044	45,098	76,088
Supplemental cash flow information:
Conversion of redeemable convertible preferred stock into common stock in connection with initial public offering		255,127	0	0
Exchange of common stock to Series D redeemable convertible preferred stock		0	0	18,572
Income taxes paid		$ 7,793	$ 2,477	$ 0

[1] Restricted cash was not material and is included in Prepaid expenses and other current assets