The Hiroshima summit comes as G7 members are faced with the immense challenges posed by Russia's invasion of Ukraine and tensions with China.
The G7 nations are looking to "de-risk, not decouple" from China, White House national security adviser Jake Sullivan told reporters in Hiroshima.
In a draft of the final communique seen by Reuters, G7 leaders agreed that China's status as the world's second-largest economy meant they had to continue to cooperate.
U.S. President Joe Biden told G7 leaders on Friday that Washington supports joint allied training programmes for Ukrainian pilots on F-16 fighter jets, in a significant endorsement for Kyiv.
Reporting by Reuters G7 team in Hiroshima; Writing by David Dolan; Editing by Nick MacfieOur Standards: The Thomson Reuters Trust Principles.