If your Claude at work API costs are $1000, that will comfortably fit in a $100 Claude Max 5x subscription at home. You could probably get about $400 worth on the $20 subscription. Just FYI if you wanted to be able to have similar Claude usage at home.
But it sounds like the $20 DeepSeek is working for you, and it's good to try new models, so just sharing info if it helps!
At home, I have a pretty simple project and pay $20 for Deepseek which has lasted me more than 2 weeks with pretty heavy usage.
I know my cost at work is something like $500-$1000+ per month, and I have found negligible difference with a $20 Deepseek usage based pricing.