Why aren't they on this? They should be at the forefront. I'm sure in some corner of Google they have a plan... but that plan hasn't penetrated my sphere of awareness yet.
OpenAI has been making the most noise online because of how open they've made their recent chatbot, but Google has been on this for a while. Earlier this year they had a blog post [1] about LaMDA which doesn't seem too far off in capability from OpenAI's projects. They've also made a lot of other strides in their research [2] that kind of goes under the radar because they haven't been synthesized into products yet (at least not in the ways we'd expect them to).
It's probably because they don't have the compute resources for this yet. I guess it would require a huge investment in hardware to release this to the masses.