Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Fair Value Weighted-Average Assumptions

The following table presents, on a weighted average basis, the assumptions used in the Black-Scholes option-pricing model to determine the grant-date fair value of stock options granted during the year ended December 31, 2024. No option grants were issued during the year ended December 31, 2025.


	Year Ended December 31,
	2024
Risk-free interest rate	4.1	%
Expected term (in years)	6.1
Expected volatility	90.0	%
Expected dividend yield	0.0	%

Schedule of Stock Option Activity

The following tables summarize the Company’s stock option activity under the 2021 Equity Incentive Plan (in thousands, except for share and per share data):


	Number of Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding as of December 31, 2024	18,125,937	$	1.18
Granted	—	—
Exercised	(9,395,646)	0.98
Forfeited	(525,981)	3.61
Expired	(20,306)	3.63
Outstanding as of December 31, 2025	8,184,004	$	1.25	4.4	$	48,364

Vested and expected to vest as of December 31, 2025	8,184,004	$	1.25	4.4	$	48,364
Options exercisable as of December 31, 2025	7,397,552	$	1.02	4.1	$	45,433

Schedule of Restricted Stock Unit Activity

The following table summarizes the Company’s restricted stock units activity under its existing restricted stock unit plan:


	Number of Shares	Grant Date Fair Value
Nonvested as of December 31, 2024	12,115,657	$	3.50
Granted	8,272,397	3.95
Vested	(5,593,282)	3.33
Forfeited	(4,134,609)	3.71
Nonvested as of December 31, 2025	10,660,163	$	3.85

Schedule of Fair Value Weighted-Average Assumptions

The fair value of the awards were estimated based on a Monte Carlo simulation model applying the following key assumptions, on a weighted average basis:


			Year Ended December 31,
			2025
Risk-free interest rate			3.9%
Expected term (in years)			3.0
Expected volatility			90.5%
Expected dividend yield			0.0%

Schedule of Market Based Stock Unit Activity

The following table summarizes the Company's market-based stock units activity since December 31, 2024:


	Number of Shares	Grant Date Fair Value

Nonvested as of December 31, 2024	—	$	—
Granted	1,755,370	5.14
Vested	—	—
Forfeited	(85,227)	4.40
Nonvested as of December 31, 2025	1,670,143	$	5.17

Schedule of Allocation of Share Based Compensation Expense

Stock-based compensation expense was classified in the consolidated statements of operations and comprehensive loss as follows (in thousands):


	Year Ended December 31,
	2025		2024
Cost of revenue	$	1,044	$	788
Research and development	4,748		4,520
Sales and marketing	5,568		10,946
General and administrative	9,211		8,502
Restructuring costs	525		—
Total stock-based compensation expense	$	21,096	$	24,756

Schedule of Stock-Based Compensation Expense

Stock-based compensation expense by award type recognized in the consolidated statements of operations and comprehensive loss was as follows (in thousands):


	Year Ended December 31,
	2025		2024
Stock options	$	1,566	$	3,767
Earn-out shares	64		11

RSUs	16,972		20,978
MSUs	2,494		—
Total stock-based compensation expense	$	21,096	$	24,756