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v3.25.3

Warrant Liabilities - Additional Information (Details) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 USD ($) shares | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Sep. 30, 2025 shares | Jan. 14, 2025 shares | Dec. 22, 2023 shares | Jul. 03, 2023 $ / shares | Dec. 31, 2022
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  | 48,376,052 | 17,454,353 | 106,754,588 | 98,818,874 |  |  |
Fair value adjustment of warrants | $ |  | $ 5,701 | $ 945 |  |  |  |  |
SeparatePre Funded Warrant [Member] | Blaize Note Financing Agreement [Member] | One Of The RT Parties [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Warrant Issued | $ | $ 45,000 |  |  |  |  |  |  |
Adjustments To Additional Paid In Capital Number Of Warrant Issued | 4,500,000 |  |  |  |  |  |  |
Maximum [Member] | Common Class A [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  | 6,833,333 |  |  |  |  |  |
Minimum [Member] | Common Class A [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  | 2,000,000 |  |  |  |  |  |
P2P Warrants [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Issue Of Preferred Stock Warrants |  |  | 336,950 |  |  |  |  |
Fair Value Of Preferred Stock Warrants To Warrant Liability | $ |  |  | $ 61,000 |  |  |  |  |
P2P Warrants [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Percentage Of Warrants Range |  |  |  |  |  |  |  | 40
Percentage of warrants incremental number of shares |  |  |  |  |  |  |  | 20.00%
P2P Warrants [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Percentage Of Warrants Range |  |  |  |  |  |  |  | 20
Percentage of warrants incremental number of shares |  |  |  |  |  |  |  | 10.00%
2023 Convertible Note Warrants [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Shares Issued, Price Per Share | $ / shares |  |  |  |  |  |  | $ 11.5 |
Warrants and Rights Outstanding, Term |  | 10 years | 5 years |  |  |  |  |
2023 Convertible Note Warrants [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Percentage Of Warrant Share Issue Upon Excisable |  |  | 25 |  |  |  |  |
2023 Convertible Note Warrants [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Percentage Of Warrant Share Issue Upon Excisable |  |  | 10 |  |  |  |  |
Other Warrant [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Pre Funded Warrant Common Stock Received |  |  |  |  |  | 6,833,333 |  |
Holder Receive A Pre Funded Warrant Common Stock |  |  |  |  |  | 2,500,000 |  |
Ava Prefunded Warrant [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |
Fair value adjustment of warrants | $ |  | $ 500 |  |  |  |  |  |

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