Assuming, of course, that it is real GAI, it will absolutely be proprietary and used to spy on you. Not only will a greedy corporation lock you into a subscription plan with multiple tiers and sue you into poverty if you try to jailbreak it, but they will use it to spy on you 24/7. It will always be connected to the Internet and upload everything to the company servers; every bit of dialogue, the layout of your home, your daily habits, brands you buy and use, &c.
Everything you say and do will be recorded by the corporation and considered their property. It can also easily be hacked into, giving the hackers a ton of blackmail material on you.
Not to mention constant glitches, obligatory updates and server issues/downtimes on a near daily basis, severe limitations on the abilities and “personality” of the AI GF, constantly updated terms of service and price hikes every few months.
You would have to be a complete fucking moron to give anyone access to information like that in exchange for an artificial relationship.