Outbound Sales
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AI SDR vs Human SDR: Cost, Coverage and Limits (2026)
Quick answerAn AI SDR is a tool that does the first-contact work of a human sales development rep (SDR): it builds a list, researches each person and sends the first message. Unify is free to start and AiSDR charges $1.50 per person. Start with a tool and add a person once replies come in.Updated October…October 25, 2026