Weekly AI Roundup for Accountants: Open rails, walled gardens, and a $1 billion shopping spree
Ramp shipped an "AI operating system" built for accounting firms, Karbon and Firm360 opened MCP sockets to whatever AI you bring, Thrive put $1 billion on the table to buy firms like yours — and 69% of tax pros told a surveyor the hourly billing model is ending. Not one major model release all week. The fight has moved up the stack, to who holds your firm's encoded knowledge and who controls the door.
