How To Ask Questions To GPT Via Siri/Always?

I want to be able to use Siri, but I want a way to use GPT specifically with a voice command,

So I want a way to ask via voice command questions to chat GPT (for example "Hey Siri/GPT how do you say "dog" in spanish?"); that don't trigger the GPT conversation, just that it replies to 1 question; or that I can then stop the conversation with a voice command.

I'd sincerely appreciate some help, this would be super useful for many people!

PS: When I ask siri a question sometimes it dosen't ask me to ask GPT; and I just want the thing to be direct to GPT , not to wait for Siri to fail -as it usually does- thanks!