Vercel Published the Full Build Sheet for Its SDR Agent: 3 People, 6 Weeks of Shadow Mode, $5K/Year to Run
Beyond the headline 32x ROI, Vercel detailed the architecture at SaaStr AI 2026: a three-person team (GTM engineer, data scientist, subject-matter expert) shadowed the top SDR for days converting workflows into tool-calling steps, then ran six weeks in shadow mode with human review before full autonomy. Infrastructure and token costs run ~$5,000/year with 20% of one engineer for maintenance, and the agent performs like a "90th-percentile rep 100% of the time." Vercel's support agent separately handles 93% of a highly technical caseload and its content agent completed 96% of major content updates last quarter — the replacement pattern required rebuilding the workflow around the agent, not bolting an agent onto the existing one.
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