On the evidence, mostly not yet. Autonomous outbound is where the market spent its marketing budget and where measured production usage is lowest — about 3% of a 40+ company panel. Where outbound AI does work, it drafts for a human rather than sending on its own.
One company in the panel bought an AI SDR, ran it, and switched it off; its records survive only as polluted lead-source values a team is now cleaning up. That cleanup cost is the part rarely priced into the evaluation. Treat autonomous send as the experiment and human-in-the-loop drafting as the default.
Every claim above comes from work LeanScale published. These are the sources.