For the future How to ask a good question / Help Us Help You
Just from a simple google search I found these topics…
Voice Control - How to use Snips AI and MQTT 2.4
Integrate a Snips voice assistant with openHAB - Walkthrough
So I would assume, the answer is yes.
I don’t mean to be rude, but please search first.
Also the Snips docs say a Pi 3 with 2.5A is OK, but the question is, does it perform good with the extra load from openHAB.