Bard is not even comparable to GPT-3-turbo, let alone GPT-4.
It's so bad that I lose respect for people when they tell me they use it. In my personal testing of it, the contradictions between its multiple drafts are jarring. For example, in a comparison of three NPM modules, it claimed each of the packages was "fastest" in the three different "drafts" it produced.
And what does Google even plan to do with any sort of comparable model? Mine your chats for advertising data? Make chat responses gameable by "Chat Engine Optimization Experts"?
At least Meta makes their AI "open-source." But a closed source model by Google has exactly one possible outcome: killedbygoogle.com
Edit: removed unnecessary judgement about meta.