SaaStr runs an AI VP of Finance that closes, invoices, and collects across four SaaS products.

Jason Lemkin describes "10K," an agent grown out of SaaStr's marketing agent now running sales ops, AR, collections, sales comp, and part of FP&A end to end across PandaDoc, Salesforce, bill.com, and QuickBooks: 60 seconds from contract signature to Salesforce update, one incorrect invoice in months of production, collections escalating to a human at 7 days past due (SaaStr). Four real deals to train, three reviewed manually step by step under a standing "tell me what you plan to do before you do it" prompt. Architecturally this is single-agent-over-existing-SaaS, not SaaS replacement. The four vendors stay. The human roles between them don't.