v3.26.1
Cover
Aug. 11, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date Aug. 11, 2026
Registrant Name Quantinuum, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-43328
Entity Tax Identification Number 41-4095842
Entity Address, Address Line One 303 S Technology Court
Entity Address, City or Town Broomfield
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80021
Local Phone Number 888-7686
City Area Code 555
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A common stock, par value $0.0001
Trading Symbol QNT
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag false
Central Index Key 0002110105