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Warrant liabilities- ECARX Warrants in connection with the Merger (Details) - Level 3 - ECARX Private Warrants | Jun. 30, 2024 | Jun. 30, 2024 decimal | Jun. 30, 2024 $ / shares | Jun. 30, 2024 ¥ / shares | Dec. 31, 2023 | Dec. 31, 2023 decimal | Dec. 31, 2023 $ / shares | Dec. 31, 2023 ¥ / shares
--- | --- | --- | --- | --- | --- | --- | --- | ---
Risk-free rate of return (%) |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |
Warrants measurement input | 0.0447 |  |  |  | 0.0393 |  |  |
Volatility |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |
Warrants measurement input | 0.4349 |  |  |  | 0.2950 |  |  |
Expected dividend yield |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |
Warrants measurement input | 0.000 |  |  |  | 0 |  |  |
Fair value of the underlying ordinary shares (in USD or RMB per share) |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |
Warrants measurement input |  |  | 2.06 | 14.97 |  |  | 3.16 | 22.44
Expected term |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |
Warrants measurement input |  | 3.5 |  |  |  | 4 |  |

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