The Cupertino giant has added a number of amusing responses that specifically relate to Google's wearable computing specs. It's a cheeky way of taking a small dig at its big rival, and reflects CEO Tim Cook's previous comments that people don't want to wear glasses if they don't have to.
Responses that we've had so far include:
"Stop trying to strap me to your forehead. It won't work"
"I think that Glass is half empty"
"Just so you know I don't do anything when you blink at me"
"Very funny. I mean, not funny 'ha-ha', but funny"
"I'm not Glass. And I'm just fine with that"
"Glass. I think you've got the wrong assistant"
Have you found anything else? Let us know on Twitter with #SiriGlass or in the comments below...