Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 31, 2024	Mar. 29, 2024	Jun. 30, 2023
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2023
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Document Annual Report	true
Document Transition Report	false
Current Fiscal Year End Date	--12-31
Entity Registrant Name	Global Technology Acquisition Corp. I
Entity Central Index Key	0001848821
Entity File Number	001-40948
Entity Incorporation, State or Country Code	E9
Entity Tax Identification Number	66-0969672
Entity Address, Address Line One	CO Services Cayman Limited P.O. Box 10008 Willow House
Entity Address, Address Line Two	Cricket Square
Entity Address, City or Town	Grand Cayman
Entity Address, Country	KY
Entity Address, Postal Zip Code	KY1-1001
City Area Code	917
Local Phone Number	338-7786
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
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	true
Title of 12(b) Security	Class A Ordinary Shares, $0.0001 par value per share
Trading Symbol	GTAC
Security Exchange Name	NASDAQ
ICFR Auditor Attestation Flag	false
Entity Public Float				$ 21,715,058
Auditor Firm ID	688
Auditor Name	Marcum LLP
Auditor Location	New York, New York
Document Financial Statement Error Correction [Flag]	false
Capital Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0
Title of 12(b) Security	Units, each consisting of one Class A Ordinary Share, $0.0001 par value per share and one-half of one redeemable warrant
Trading Symbol	GTACU
Security Exchange Name	NASDAQ
Warrant [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			9,390,616
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 per share
Trading Symbol	GTACW
Security Exchange Name	NASDAQ
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		2,171,254
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			3,700,000