ending - What happened at the end of The Grey?

I am confused, what happened at the end of The Grey (2011)? Did Ottway die or did he manage to survive?

Answer

I think the ending is intentionally ambiguous, so each member of the audience can draw their own conclusion. Even if Ottway kills the Alpha, will the rest of the pack let him survive?

If you watched past the credits, you saw that there was a very short (maybe two seconds) scene where we see Ottway and the Alpha wolf after they fight. They're both alive, but badly injured. Ottway's head is resting on top of the wolf's body. Since both are so badly injured, I think it's unlikely that either one of them will survive.