XML 66 R56.htm IDEA: XBRL DOCUMENT v3.25.3
Merger and Reverse Recapitalization - Schedule of Number of Shares of Common Stock Outstanding on Merger (Details) - shares
 9 Months Ended
Sep. 30, 2025
Jan. 14, 2025
Jan. 13, 2025
Dec. 31, 2024
Dec. 31, 2023
Business Acquisition [Line Items]          
Common stock, shares outstanding 106,754,588 98,818,874   48,376,052 17,454,353
Sponsor forfeiture (2,000,000)        
Shareholder Note receivable 750,000        
PIPE shares 1,529,500        
Merger And Pipe Financing Shares, Total 11,408,957        
Legacy Blaize shares 87,314,968        
Issuance of common stock to advisors 94,949        
Class A common stock [Member] | Bur Tech          
Business Acquisition [Line Items]          
Common stock, shares outstanding     10,816,995    
Common stock shares subject to redemption outstanding prior to merger 4,104,543        
Redemption of common stock shares to business combination (937,844)        
Non-redemption escrow (2,854,242)        
Common stock (in shares) 9,879,452        
Class B Common Stock | Bur Tech          
Business Acquisition [Line Items]          
Common stock, outstanding prior to the Merger 5