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v3.25.0.1

Segment Information - Schedule of Revenue, Significant Expenses, and Segment Profit and Loss (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 43,073 | $ 22,042 | $ 11,131
Operating costs and expenses excluding stock-based compensation: |  |  |
Cost of revenue (excluding depreciation and amortization) | 20,597 | 8,108 | 2,944
Research and development | 136,827 | 92,321 | 43,978
Sales and marketing | 28,395 | 18,270 | 8,385
General and administrative | 71,055 | 50,722 | 35,966
Stock-based compensation | 112,066 | 74,445 | 33,197
Other segment items: |  |  |
(Gain) loss on change in fair value of warrant liabilities | 117,107 | 19,206 | (30,136)
Other (income) expense, net | 275 | 85 | (6)
Income tax (benefit) expense | 59 | 48 | 0
Net loss | (331,647) | (157,771) | (48,511)
Operating Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 43,073 | 22,042 | 11,131
Operating costs and expenses excluding stock-based compensation: |  |  |
Cost of revenue (excluding depreciation and amortization) | 15,857 | 5,289 | 2,042
Research and development | 78,131 | 52,218 | 30,506
Sales and marketing | 14,607 | 11,508 | 7,087
General and administrative | 41,401 | 30,663 | 20,182
Stock-based compensation | 106,878 | 69,743 | 31,456
Depreciation and amortization | 18,654 | 10,375 | 5,604
Other segment items: |  |  |
(Gain) loss on change in fair value of warrant liabilities | 117,107 | 19,206 | (30,136)
Interest income, net | (18,249) | (19,322) | (7,093)
Other (income) expense, net | 275 | 85 | (6)
Income tax (benefit) expense | 59 | 48 | 0
Net loss | $ (331,647) | $ (157,771) | $ (48,511)

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