The Gunners went two points clear at the summit with Saturday's 2-1 win at Swansea as Aaron Ramsey set up Serge Gnabry for the first and added the second himself.
The victory in south Wales extends Arsenal's club-record run of away wins to 12, and was their eighth straight success in all competitions since their opening-day defeat against Aston Villa.
While the north London side are in a rich vein of form, Manchester United, Manchester City and Chelsea have all made stuttering starts under new management.
The likes of Liverpool, Tottenham and Everton, meanwhile, have all enjoyed positive beginnings, and Wenger believes we could be about to witness an unpredictable, wide open title race.
He said: "We have the desire to be champions, you can see that.
"It's still the early stages of the season, we have only played six games, but I would have signed up to have 15 points now after losing the first game.
"Let's just try and keep going. We have a chance but it is very open.
"You can add Liverpool, Tottenham and Everton to the top four, it will be very interesting.
"What has changed compared to years before is that at 80 per cent you will not beat any team in the Premier League.
Source: PA
Source: PA