Balance Sheet Components - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 7,586	$ 6,757
Less: accumulated depreciation	(2,011)	(916)
Total property and equipment, net	5,575	5,841
Laboratory Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,847	2,331
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,186	801
Computer Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	130	130
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	409	325
Construction in Progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 14	$ 3,170