| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Cash and cash equivalents | - | 399 | 44 | 36 | 54 |
|---|
| Short-term investments | - | 123 | 311 | 320 | 286 |
|---|
| Accounts receivable | - | 1 | 3 | 11 | 10 |
|---|
| Prepaid expenses and other current assets | - | 6 | 13 | 23 | 28 |
|---|
| Total current assets | 2 | 530 | 372 | 390 | 379 |
|---|
| Long-term investments | - | 80 | 182 | 100 | 24 |
|---|
| Property and equipment, net | - | 19 | 26 | 38 | 53 |
|---|
| Operating lease right-of-use assets | - | 4 | 4 | 5 | 9 |
|---|
| Intangible assets, net | - | 6 | 9 | 15 | 29 |
|---|
| Goodwill | - | - | 1 | 1 | 10 |
|---|
| Other noncurrent assets | - | 4 | 5 | 5 | 4 |
|---|
| Total Assets | 302 | 642 | 598 | 554 | 508 |
|---|
| Accounts payable | 850,442 | 2 | 3 | 6 | 5 |
|---|
| Accrued Liabilities, Current | 512,509 | 3 | 7 | 18 | 16 |
|---|
| Operating Lease, Liability, Current | - | 1 | 1 | 1 | 3 |
|---|
| Unearned revenue | - | 3 | 9 | 12 | 11 |
|---|
| Current portion of stock option early exercise liabilities | - | 1 | 1 | 0 | 0 |
|---|
| Total current liabilities | 1 | 10 | 20 | 37 | 36 |
|---|
| Operating Lease, Liability, Noncurrent | - | 4 | 3 | 7 | 14 |
|---|
| Deferred Revenue, Noncurrent | - | 2 | 1 | 0 | - |
|---|
| Stock Option Early Exercise Liabilities Net Of Current Portion | - | 2 | 1 | 0 | 0 |
|---|
| Warrant liabilities | - | 34 | 4 | 23 | 71 |
|---|
| Other noncurrent liabilities | - | - | 0 | 0 | 3 |
|---|
| Total liabilities | 12 | 51 | 30 | 69 | 125 |
|---|
| Common Stock, Value, Issued | - | 0 | 0 | 0 | 0 |
|---|
| Additional paid-in capital | 6 | 737 | 770 | 839 | 1,067 |
|---|
| Accumulated deficit | -629,272 | -146 | -194 | -352 | -684 |
|---|
| Accumulated other comprehensive income (loss) | - | -0 | -7 | -2 | 0 |
|---|
| Total stockholders' equity | 5 | 591 | 568 | 485 | 384 |
|---|
| Total Liabilities and Stockholders' Equity | 302 | 642 | 598 | 554 | 508 |
|---|