Balance Sheet Components - Summary of Property and Equipment Net (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Jan. 31, 2023
Property Plant And Equipment [Line Items]
Total property and equipment	$ 49,737	$ 32,875
Less: accumulated depreciation and amortization	(15,804)	(8,281)
Property and equipment, net	$ 33,933	24,594
Furniture and fixtures
Property Plant And Equipment [Line Items]
Estimated Useful life	5 years
Total property and equipment	$ 1,394	1,292
Computers, equipment and software
Property Plant And Equipment [Line Items]
Estimated Useful life	3 years
Total property and equipment	$ 684	581
Capitalized internal-use software development costs
Property Plant And Equipment [Line Items]
Estimated Useful life	5 years
Total property and equipment	$ 41,934	25,817
Leasehold improvements
Property Plant And Equipment [Line Items]
Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration]	Useful Life, Shorter of Lease Term or Asset Utility [Member]
Total property and equipment	$ 5,725	5,138
Construction in progress(1)
Property Plant And Equipment [Line Items]
Total property and equipment	$ 0	$ 47