Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 39,389	$ 7,813
Short-term investments	348,118	0
Accounts receivable	0	8,000
Prepaid expenses and other current assets (includes related party amounts of $14 and $0, respectively)	2,081	249
Total current assets	389,588	16,062
Property and equipment, net	1,118	155
Operating lease right-of-use assets	238	0
Other long-term assets	140	0
Total assets	391,084	16,217
Current liabilities:
Accounts payable	3,613	428
Accrued liabilities (includes related party amounts of $0 and $544, respectively)	2,030	751
Current portion of deferred revenue	5,264	1,950
Unvested stock liabilities	1,352	52
Current portion of operating lease liabilities	212	0
Total current liabilities	12,471	3,181
Deferred revenue, net of current portion	1,840	6,050
Operating lease liabilities, net of current portion	23	0
Total liabilities	14,334	9,231
Commitments and contingencies (Note 3)
Convertible preferred stock, $0.001 par value; authorized shares - 0 and 6,838,829 at September 30, 2021 and December 31, 2020, respectively; issued and outstanding shares - 0 and 6,838,829 at September 30, 2021 and December 31, 2020, respectively; liquidation preference - $0 and $21,709 at September 30, 2021 and December 31, 2020, respectively	0	21,624
Stockholders’ equity (deficit):
Preferred stock, $0.001 par value; authorized shares - 10,000,000 and 0 at September 30, 2021 and December 31, 2020, respectively; no shares issued and outstanding at September 30, 2021 and December 31, 2020
Common stock, $0.001 par value; authorized shares - 200,000,000 and 9,000,000 at September 30, 2021 and December 31, 2020, respectively; issued shares - 41,611,510 and 1,257,736 at September 30, 2021 and December 31, 2020, respectively; outstanding shares - 41,171,963 and 1,046,599 at September 30, 2021 and December 31, 2020, respectively	41	1
Additional paid-in capital	410,680	100
Accumulated other comprehensive income (loss)	24	0
Accumulated deficit	(33,995)	(14,739)
Total stockholders’ equity (deficit)	376,750	(14,638)
Total liabilities, convertible preferred stock and stockholders’ equity (deficit)	$ 391,084	$ 16,217