The French defender's current deal is running down this season.
Amid interest from Barcelona and PSG, Konate is keeping his options open.
Ahead of their FA Cup clash with Brighton today, Slot said: "We are in talks with him so that tells you what we want. It's clear we would like him to stay but negotiations are ongoing so let's see where that ends. We wouldn’t be in negotiations if we didn't want him to stay.
"It’s just as good from Ibou as from Virgil (van Dijk), I’m sure there is a difference in age and that sometimes plays a part as well. Ibou has had a very good spell recently.
"He had a lot of good games earlier in the season but then he was also part of the reason why we conceded a goal. His general performances were good but then a small mistake he made immediately led to a goal and so he was judged differently.
"But he has had a very good partnership with Virgil since I’ve been here and, just like Virgil, he has always been fit. Touch wood. These two are vital for us, not only because of the quality they have but because of the lack of options we have behind."