Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit
Temporary equity, beginning balance (in shares) at Jan. 31, 2023	74,182,559
Temporary equity, beginning balance at Jan. 31, 2023	$ 714,713
Temporary equity, ending balance (in shares) at Apr. 30, 2023	74,182,559
Temporary equity, ending balance at Apr. 30, 2023	$ 714,713
Beginning balance, shares (in shares) at Jan. 31, 2023		59,878,717
Beginning balance at Jan. 31, 2023	(1,087,329)	$ 1	$ 242,326	$ (1,301)	$ (1,328,355)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock option (in shares)		343,569
Issuance of common stock upon exercise of stock options	974		974
Stock-based compensation	428		428
Other comprehensive income (loss)	619			619
Net loss	(89,273)				(89,273)
Ending balance, shares (in shares) at Apr. 30, 2023		60,222,286
Ending balance at Apr. 30, 2023	$ (1,174,581)	$ 1	243,728	(682)	(1,417,628)
Temporary equity, beginning balance (in shares) at Jan. 31, 2024	74,182,559
Temporary equity, beginning balance at Jan. 31, 2024	$ 714,713
Increase (Decrease) in Temporary Equity [Roll Forward]
Conversion of redeemable convertible preferred stock to common stock upon initial public offering (in shares)	(74,182,559)
Conversion of redeemable convertible preferred stock and founder stock to common stock upon initial public offering	$ (714,713)
Beginning balance, shares (in shares) at Jan. 31, 2024		61,262,729
Beginning balance at Jan. 31, 2024	(1,419,257)	$ 1	265,494	(2,239)	(1,682,513)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of redeemable convertible preferred stock and founder stock to common stock upon initial public offering (in shares)		74,182,559
Conversion of redeemable convertible preferred stock and founder stock to common stock upon initial public offering	714,713	$ 2	714,711
Issuance of common stock upon initial public offering, net of underwriting discounts and commissions, and offering costs (in shares)		23,500,000
Issuance of common stock upon initial public offering, net of underwriting discounts and commissions, and offering costs	$ 700,011	$ 1	700,010
Issuance of common stock upon exercise of stock option (in shares)	641,537	641,537
Issuance of common stock upon exercise of stock options	$ 3,618		3,618
Issuance of common stock for net settlement of restricted stock awards and restricted stock units (in shares)		17,002,721
Issuance of common stock for net settlement of restricted stock awards and restricted stock units	(411,518)		(411,518)
Stock-based compensation	630,591		630,591
Other comprehensive income (loss)	(665)			(665)
Net loss	(732,091)				(732,091)
Ending balance, shares (in shares) at Apr. 30, 2024		176,589,546
Ending balance at Apr. 30, 2024	$ (514,598)	$ 4	$ 1,902,906	$ (2,904)	$ (2,414,604)