Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 40,235	$ 53,504
Short-term investments	145,193	23,467
Accounts receivable (including related party amounts of $0 and $569, respectively)	0	1,034
Other receivables (including related party amounts of $0 and $607, respectively)	146	724
Prepaid expenses and other current assets	3,057	1,092
Total current assets	188,631	79,821
Restricted cash	258	258
Property and equipment, net	6,370	8,096
Operating lease right-of-use assets	13,794	16,547
Financing lease right-of-use asset	261
Other long-term assets	267	392
Total assets	209,581	105,114
Current liabilities:
Accounts payable (including related party amounts of $276 and $199, respectively)	1,121	614
Accrued expenses (including related party amounts of $713 and $2,161, respectively)	7,392	8,017
Current portion of operating lease liabilities	3,618	3,596
Current portion of financing lease liability	122
Total current liabilities	12,253	12,227
Operating lease liabilities, net of current portion	10,570	13,316
Financing lease liability, net of current portion	44
Simple agreements for future equity ("SAFEs") (including related party amounts of $0 and $20,315, respectively)		25,100
Other non-current liabilities	73	73
Total liabilities	22,940	50,716
Commitments and contingencies (Note 11)
Stockholders' equity (deficit):
Preferred stock, $0.0001 par value; 10,000,000 and zero shares authorized at December 31, 2024 and December 31, 2023 respectively; zero shares issued and outstanding as of December 31, 2024 and December 31, 2023
Common stock, $0.0001 par value; 700,000,000 and 38,998,588 shares authorized at December 31, 2024 and December 31, 2023, respectively; 24,291,607 and 809,758 shares issued and outstanding at December 31, 2024 and December 31, 2023	3
Additional paid-in capital	433,451	18,988
Accumulated other comprehensive gain (loss)	(129)	308
Accumulated deficit	(246,684)	(181,311)
Total stockholders' equity (deficit)	186,641	(162,015)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	$ 209,581	105,114
Series A convertible preferred stock [Member]
Current liabilities:
Convertible preferred stock		96,767
Series B convertible preferred stock [Member]
Current liabilities:
Convertible preferred stock		$ 119,646