You would need to define what you mean by 'modeling the human brain'. If it means AGI or anything similar, then we're very far. To paraphrase an analogy I've h

You would need to define what you mean by 'modeling the human brain'. If it means AGI or anything similar, then we're very far. To paraphrase an analogy I've heard somewhere (in similar context) - We're building better and better ladders, maybe even lifts with this last push in ML field. But the brain is on the moon - even the best lifts won't get us there.