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Fair Value Measurement (Tables)
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value of Liabilities
The table below summarizes the fair values of certain liabilities that are included within the Company's accompanying Consolidated Balance Sheets, and their designations among the three fair value measurement categories:
December 31, 2025
December 31, 2024
Level 1Level 2Level 3Level 1Level 2Level 3
Liabilities
SPA Warrant (a)
$— $— $470,715 $— $— $188,857 
Contingent warrants (a)
— — — — $— 77,773 
IPO, April, May and December 2023 Warrants (b)
— — 313,253 — 269 189,322 
Delayed Draw Term Loan— — 150,427 — — 76,188 
Embedded derivatives(c)
— — 228,719 — — 44,396 
Total liabilities
$— $— $1,163,114 $— $269 $576,536 
(a) Included in Warrants liability - Related party on the Consolidated Balance Sheets.
(b) All these instruments are Level 3, except for the IPO warrants (Level 2). These are included in Warrants liability on the Consolidated Balance Sheets.
(c) Included in Long-term debt for the year ended December 31, 2025, and Notes Payable - Related Party for the year ended December 31, 2024 on the Consolidated Balance Sheets.
Schedule of Assumptions Used to Determine Fair Value of Embedded Conversion Feature
The inputs used to determine the fair value of the April 2023 warrants, May 2023 warrants and the December 2023 warrants are as follows:
April 2023 warrants
December 31, 2025
December 31, 2024
Time to expiration2.79 years3.79 years
Common stock price$11.46 $4.86 
Risk-free interest rate3.5 %4.3 %
Volatility105.0 %90.0 %
May 2023 warrants
December 31, 2025
December 31, 2024
Time to expiration2.54 years3.54 years
Common stock price$11.46 $4.86 
Risk-free interest rate3.5 %4.3 %
Volatility105.0 %90.0 %
December 2023 warrants
December 31, 2025
December 31, 2024
Time to expiration2.96 years3.96 years
Common stock price$11.46 $4.86 
Risk-free interest rate3.5 %4.3 %
Volatility105.0 %90.0 %
The inputs used to determine the fair value of the embedded derivative liabilities are as follows:
2021 Convertible Note
June 03, 2025
December 31, 2024
Term1.08 Years1.50 Years
Dividend yield— %— %
Risk-free interest rate4.1 %4.2 %
Volatility60.0 %65.0 %
Effective debt yield24.0 %30.0 %

AFG Convertible Note
October 16, 2025
July 28, 2025
December 31, 2024
Term8.96 Years0.93 Years1.50 years
Dividend yield— %— %— %
Risk-free interest rate3.9 %4.1 %4.2 %
Volatility60.0 %60.0 %65.0 %
Effective debt yield14.5 %23.2 %30.0 %
May 2025 Convertible Note
November 24, 2025
November 19, 2025
Term
4.56 Years
4.57 Years
Dividend yield— %— %
Risk-free interest rate3.6 %3.7 %
Volatility60.0 %60.0 %
Effective debt yield10.5 %11.5 %
November 2025 Convertible Note
December 31, 2025
November 24, 2025
Term5.92 Years6.02 Years
Dividend yield— %— %
Risk-free interest rate3.8 %3.7 %
Volatility60.0 %60.0 %
Effective debt yield11.7 %12.8 %
Quantitative information about all significant unobservable inputs used in the fair value measurement for non-recurring level 3 measurements:

Loan Commitment Assets:
June 21, 2024
Milestones achievement expectations
Very high probability
Debt yield
47.5 %
Quantitative information about all significant unobservable inputs used in the fair value measurement for recurring level 3 measurements:

Delayed Draw Term Loan Initial Tranche
December 31, 2025
December 31, 2024
June 21, 2024
Debt yield
11.9 %30.0 %47.5 %
Contingent Warrants- all tranches
December 31, 2024
June 21, 2024
Milestones achievement expectations
Very high probabilityVery high probability
Volatility
65.0 %70.0 %
Discount for lack of marketability (“DLOM”)
10.0 %10.0 %
SPA Warrant
December 31, 2025
December 31, 2024
June 21, 2024
Discount for lack of marketability (“DLOM”)5.0 %10.0 %10.0 %
Delayed Draw Term Loan August 2024 Draw
December 31, 2025
December 31, 2024
August 31, 2024
Debt yield
11.9 %30.0 %42.5 %
Delayed Draw Term Loan October 2024 Draw
December 31, 2025
December 31, 2024
October 31, 2024
Debt yield
11.9 %30.0 %42.5 %
Delayed Draw Term Loan January 2025 Draw
December 31, 2025
January 24, 2025
Debt yield
11.9 %30.0 %
Delayed Draw Term Loan Prepayment
June 4, 2025
Debt yield
25.0 %
Schedule of Instruments Initially and Subsequently Measured at Fair Value
The following table summarizes instruments that were initially and subsequently measured at fair value. (see Note 3, Credit and Securities Purchase Transaction):
InstrumentInitial measurement date
Initial Fair Value
Initial Draw of the Delayed Draw Term Loan6/21/2024$25,653 
SPA Warrant6/21/2024$32,903 
Contingent Warrants6/21/2024$62,191 
August 2024 Draw of the Delayed Draw Term Loan
8/29/2024$12,528 
October 2024 Draw of the Delayed Draw Term Loan
10/31/2024$28,340 
January 2025 Draw of the Delayed Draw Term Loan
1/24/2025$17,312 
Schedule of Liabilities Measured at Fair Value
The following table summarizes the changes in the fair value of liabilities that are included within the Company’s accompanying Consolidated Balance Sheets and are designated as Level 3:
For the Years Ended December 31,
20252024
Delayed Draw Term Loan
Balance at beginning of the period$76,188 $— 
Additions- Initial Draw
— 25,653 
Additions- August 2024 Draw
— 12,528 
Additions- October 2024 Draw
— 28,340 
Additions - January 2025 Draw
17,312 — 
Prepayment of the Term Loan
(28,582)— 
Change in fair value of Term Loan85,509 9,667 
Balance at end of the period$150,427 $76,188 
SPA Warrant and Contingent Warrants
Balance at beginning of the period$266,630 $— 
Additions— 95,094 
Conversion to preferred stock(102,186)(193,920)
Change in fair value of warrants306,271 365,456 
Balance at end of the period$470,715 $266,630 
Embedded derivatives
Balance at beginning of the period$44,396 $4,423 
Extinguishment of the 2021 Convertible Notes embedded derivatives
(87)— 
Extinguishment of the AFG Convertible Notes embedded derivatives
(121,313)— 
Additions282,054 41 
Change in fair value of derivatives - related party77,004 39,932 
Change in fair value of derivatives
(76,467)— 
Settlement of non-option embedded derivative for May 2025 Convertible notes23,132 — 
Balance at end of the period$228,719 $44,396 
April, May and December 2023 Warrants
Balance at beginning of the period$189,322 $27,406 
Exercised warrants
(155,008)(9,096)
Change in fair value of warrants278,939 171,012 
Balance at end of the period$313,253 $189,322 
Schedule of Estimated Fair Value of Financial Instruments Not Carried at Fair Value
The estimated fair value of financial instruments not carried at fair value in the Consolidated Balance Sheets was as follows:
Level in fair value hierarchy
December 31, 2025
December 31, 2024
Carrying ValueFair ValueCarrying ValueFair Value
Notes receivable3$— $— $847 $740 
Loan commitment assets3— — 21,731 21,051 
2021 Convertible Notes*3— — 109,838 91,951 
May 2025 Convertible Notes
348,044 123,000 — — 
November 2025 Convertible Notes
3530,096 586,237 — — 
Senior Secured Term Loan3— — — — 
AFG Convertible Notes*
3— — 63,033 65,053 
Equipment financing facility3372 375 2,385 2,097 
Preferred Stock31,361,542 1,292,216 488,696 454,581 
DOE Loan Facility
384,327 95,427 65,452 67,740 
   Total$2,024,381 $2,097,255 $751,982 $703,213 
*Includes the embedded derivative liabilities.