The plans for the stadium were approved earlier this year by the city and central governments. Japanese government officials have not given specifics on how construction will be trimmed, but have said that the design concept, which includes a retractable roof, will be kept.
The IOC delegation, led by executive director Gilbert Felli, shared advice with organizers and their partners on managing the Olympics and Paralympics.
"This orientation seminar has enabled us to lay the foundation for the future and to build upon the transfer of knowledge that Tokyo has already benefited from during the bid process," Felli said.
Tokyo plans to launch its organizing committee in February and must decide on a committee head. Former Prime Minister Yoshiro Mori has been linked with the job.
New IOC President Thomas Bach will be visiting Tokyo next Wednesday. He will be accompanied by IOC vice president John Coates, who heads the coordination commission for the Tokyo Games.