The South Americans face the Netherlands tonight (Monday) to decide who finishes at the top of Group B.
With their place in the second round already confirmed, Vidal is confident that the Chileans can go all the way and lift the trophy on July 13.
"If we play the way we did against Spain then I believe we can reach the final of the World Cup," he told El Grafico Chile.
"I believe this is the best generation in the history of Chilean football and when we are together we are a very strong team. We face a very important rival but we believe in ourselves."
Chile's previous best appearance at the World Cup was a third-placed finish back in 1962.