Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 25,158	$ 8,266
Marketable securities	527,722	179,408
Prepaid expenses and other current assets	10,802	6,358
Accounts receivable - other	182	92
Total current assets	563,864	194,124
Property and equipment, net	84	69
Operating lease right-of-use assets	329	422
Other assets	53	19
Deferred offering costs		4,667
Total assets	564,330	199,301
Current liabilities:
Accounts payable	4,491	3,242
Success fee liability, current portion		352
Operating lease liabilities, current portion	237	217
Accrued expenses and other current liabilities	7,125	10,443
Total current liabilities	11,853	14,254
Success fee liability, non-current		13
Operating lease liabilities, net of current portion	118	244
Total liabilities	11,971	14,511
Commitments and contingencies
Stockholders' equity (deficit):
Common stock, $0.0001 par value per share; 700,000,000 and 493,530,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; 66,659,852 and 5,222,283 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	7
Additional paid-in capital	718,130	6,842
Accumulated deficit	(165,778)	(129,942)
Total stockholders' equity (deficit)	552,359	(123,100)
Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)	$ 564,330	199,301
Series A-1 Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		3,570
Series B Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		10,000
Series C Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		22,000
Series D Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		47,300
Series E Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		120,000
Series F Redeemable Convertible Preferred Stock
Redeemable convertible preferred stock:
Redeemable convertible preferred stock		$ 105,020