But you don't need to beat chat-gpt 4. A chat-gpt 3.5 esque model that has access to your todo list and calendar that I can talk to like siri would make the tool 10x more useful overnight.
If it even had access to your last 50 emails I could imagine saying something like.
- remind me to respond to that email from bob tomorrow.
- Draft me 3 responses that are kind, but indicate clearly that we can't go forward with his request.
This could even happen in the background, and I'm happy to pay a bit extra for the compute, it could be "premium siri"