| Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Cash and cash equivalents | 139 | 109 | 314 | 204 | 87 | 148 |
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| Available-for-sale securities | 498 | 923 | 1,508 | 1,446 | 1,587 | 1,708 |
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| Accounts receivable, net | 34 | 63 | 96 | 149 | 248 | 317 |
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| Contract assets | 2 | 4 | 6 | 8 | 11 | 17 |
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| Restricted Cash, Current | - | 3 | 3 | 11 | 3 | 4 |
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| Prepaid expenses and other current assets | 17 | 28 | 29 | 71 | 48 | 75 |
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| Total current assets | 690 | 1,130 | 1,956 | 1,888 | 1,983 | 2,269 |
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| Property and equipment, net | 101 | 124 | 184 | 287 | 323 | 467 |
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| Goodwill | 4 | 17 | 24 | 148 | 148 | 181 |
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| Acquired intangible assets, net | 0 | 3 | 1 | 32 | 20 | 22 |
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| Operating lease right-of-use assets | - | 43 | 130 | 132 | 139 | 168 |
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| Capitalized Contract Cost, Net, Noncurrent | 25 | 44 | 70 | 93 | 133 | 172 |
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| Restricted cash | 7 | 7 | 4 | 0 | 2 | 2 |
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| Other noncurrent assets | 4 | 13 | 3 | 7 | 13 | 19 |
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| Total assets | 831 | 1,381 | 2,372 | 2,588 | 2,760 | 3,301 |
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| Accounts payable | 11 | 14 | 26 | 36 | 54 | 106 |
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| Accrued expenses and other current liabilities | 28 | 46 | 38 | 66 | 64 | 82 |
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| Accrued compensation | 15 | 25 | 66 | 42 | 64 | 81 |
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| Operating lease liabilities | - | 18 | 25 | 33 | 38 | 48 |
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| Deferred revenue | 31 | 55 | 117 | 219 | 348 | 478 |
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| Total current liabilities | 84 | 141 | 289 | 398 | 567 | 794 |
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| Convertible Debt, Noncurrent | - | 383 | 1,147 | 1,436 | 1,283 | 1,287 |
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| Operating Lease, Liability, Noncurrent | - | 27 | 109 | 108 | 113 | 128 |
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| Deferred revenue, noncurrent | 1 | 2 | 5 | 12 | 17 | 22 |
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| Other noncurrent liabilities | 10 | 10 | 7 | 11 | 16 | 24 |
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| Total liabilities | 105 | 564 | 1,556 | 1,964 | 1,997 | 2,255 |
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| Class A common stock | 0 | 0 | 0 | 0 | 0 | 0 |
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| Class B common stock | 0 | 0 | 0 | 0 | 0 | 0 |
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| Additional paid-in capital | 1,027 | 1,237 | 1,495 | 1,475 | 1,785 | 2,153 |
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| Accumulated deficit | -302 | -421 | -681 | -840 | -1,024 | -1,103 |
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| Accumulated other comprehensive income (loss) | 0 | 0 | -3 | -12 | 2 | -4 |
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| Class A common stock | 0 | 0 | 0 | 0 | 0 | 0 |
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| Class B common stock | 0 | 0 | 0 | 0 | 0 | 0 |
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| Total stockholders’ equity | 726 | 817 | 811 | 624 | 763 | 1,046 |
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| Total liabilities and stockholders’ equity | 831 | 1,381 | 2,372 | 2,588 | 2,760 | 3,301 |
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