The 2012 Olympics will not be overshadowed by the grandness of last year's Beijing event, London Games chief Sebastian Coe said on Tuesday.
"Beijing was spectacular. The amount of detailed planning and the performance of the athletes were spectacular," he told reporters. "We'll also be different.
"What we absolutely recognise, and the International Olympic Committee (IOC) recognises, is we will never see a Games like the Beijing Olympics again."
The Beijing Games, seen as China's coming out party, never looked back after a memorable opening ceremony, with world records by Jamaican sprinter Usain Bolt and American swimmer Michael Phelps underlining the quality of the performances.
Coe said each Olympics sets its own standards.
"That (Beijing) doesn't make it any better or worse for cities coming after this," he said. "Each games is different. That is the beauty of the Olympic movement."
"Each one is different and reflects in large part the communities that stage it."
The twice former 1,500 metres Olympic champion is in India to promote the International Inspirational Programme, a legacy project of the 2012 Games providing sport and leadership lessons to about 12 million youngsters in 20 countries.
"Cultural diversity will be key to the Games as there are around 300 different communities in London and 200 languages are spoken," he said.
Coe said London organisers were in control of the budget for the 2012 Games despite global economic concerns.
The IOC last week agreed to scrap plans for a new temporary venue at the 2012 Games for badminton and rhythmic gymnastics, which will instead be staged at an existing venue, due to the "exceptional circumstances" of the recession.
However, Coe said there had been no cost overruns and organisers had already raised about £550 million ($911.5 million) out of the sponsorship target of 700 million.
"We started early and quickly because we also recognised the world economy was (at that time) in very good shape. It also meant those companies that became our partners also started activating their sponsorships early.
"So starting early was very important and the Olympic brand is a very big brand."