v3.25.2
Cover Page - shares
 6 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Entity File Number 001-40671  
Entity Registrant Name NUVALENT, INC.  
Entity Central Index Key 0001861560  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 81-5112298  
Entity Address, Address Line One One Broadway  
Entity Address, Address Line Two 14th Floor  
Entity Address, City or Town Cambridge  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02142  
City Area Code 857  
Local Phone Number 357-7000  
Title of 12(b) Security Class A Common Stock, par value $0.0001 per share  
Trading Symbol NUVL  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   66,669,583
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   5,435,254