The English playmaker set up Wilfried Zaha to score in the 1-1 draw at Anfield.
"Really pleased, Eze in that action showed his talent," Vieira said.
"People forget sometimes that he was injured for quite a while last year and he's getting to his best. What he needs now is to play games.
"I think today he was a different class."
He added: "There's a lot of teams that when they come to play Liverpool, they'll be happy with a point.
"I have to say we played a really good game, of course I'm pleased with the point. Overall we kept our discipline, in a really tough place to come and try to perform.
"We created some really good chances in a difficult period, stuck together and defended really well. I'm really happy with how the team played."