v3.25.2
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2025
Jul. 15, 2025
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Entity File Number 001-42463  
Entity Registrant Name ScanTech AI Systems Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 93-3502562  
Entity Address, Address Line One 1735 Enterprise Drive  
Entity Address, City or Town Buford  
Entity Address State Or Province GA  
Entity Address, Postal Zip Code 30518  
City Area Code 470  
Local Phone Number 655 0886  
Title of 12(b) Security Common Stock, par value of $0.0001 per share  
Trading Symbol STAI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   48,262,310
Entity Central Index Key 0001994624  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false