Chelsea extended their winning sequence to seven Premier League games, coming from behind to win 2-1 and prolong Tottenham's 26-year wait for victory at Stamford Bridge.
The Blues in September lost to Liverpool and Arsenal, but, since Conte adopted a 3-4-3 formation, his side have scored 19 goals, conceding just once.
"Now we are another team," Conte said. "If we were the same team (as) against Arsenal, Liverpool, today we lose the game. For sure.
"We have another type of confidence. We are working a lot. I'm pleased for the players. They enjoy this type of football. It's normal in this type of game you can't dominate for the whole game.
"Today it wasn't very easy. Today or this period if you talk about this (the title) it's not right. It's not right because we have to improve a lot and we have a long way in front of us.
"It's important to stay humble, to continue to work, to trust in our work, above all after this type of game.
"Today we won a game against a really strong team. On Saturday we'll have another strong team (Manchester City) and we don't forget that against Arsenal, Liverpool we lost."