Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 30,036	$ 42,649
Accounts receivable, net of allowance for credit loss of $nil	112	0
Prepaid expenses and other current assets	11,598	1,519
Marketable securities	519,099	568,564
Interest receivable on marketable securities	4,140	3,702
Total current assets	564,985	616,434
Property and equipment, net of accumulated depreciation of $839 and $666, respectively	719	717
Intangible assets, net of accumulated amortization of $291	2,779	0
Lease security deposit	144	141
Operating lease right-of-use assets	2,472	3,605
Other non-current assets	480	587
Total assets	571,579	621,484
Current liabilities:
Accounts payable	12,380	2,209
Current operating lease liabilities	1,781	1,972
Contract liabilities, current portion	12,942	0
Short-term borrowings	8,426	0
Accrued expenses	23,506	9,793
Total current liabilities	59,035	13,974
Warrant liability	908	353
Contract liabilities, net of current portion	7,937	0
Non-current operating lease liabilities	985	2,035
Total liabilities	68,865	16,362
Commitments and contingencies (Note 12)
Stockholders' equity
Class A and Class B Common Stock and additional paid in capital, $0.0001 par value per share; 1,060,000,000 (Class A 1,000,000,000, Class B 60,000,000) shares authorized as of September 30, 2024 and December 31, 2023, respectively, 336,248,642 (Class A 335,248,642, Class B 1,000,000) and 219,046,219 (Class A 218,046,219, Class B 1,000,000) shares issued and outstanding as of September 30, 2024 and December 31, 2023, respectively	1,362,631	947,745
Accumulated deficit	(861,298)	(342,804)
Accumulated other comprehensive (loss) income	1,381	181
Total stockholders' equity	502,714	605,122
Total liabilities and stockholders' equity	$ 571,579	$ 621,484