What Is an AI SDR?
An AI SDR is an AI agent that performs sales development representative tasks. Underfive is an AI SDR that focuses on inbox management: replying to leads, handling objections, following up, and booking meetings.
Instead of hiring more SDRs to manage inboxes, you deploy an AI SDR. It works 24/7, responds in under 5 minutes, and never misses a lead. Human SDRs can focus on high-value activities while the AI handles repetitive inbox tasks.
AI SDR vs Human SDR
| Task | AI SDR | Human SDR |
|---|---|---|
| Reply to leads 24/7 | ✓ | ✗ |
| Respond in under 5 minutes | ✓ | ✗ |
| Handle objections | ✓ | ✓ |
| Book meetings | ✓ | ✓ |
| Follow up automatically | ✓ | ✓ |
| Work across all time zones | ✓ | ✗ |
| Scale without hiring | ✓ | ✗ |
| Build relationships | ✗ | ✓ |
| Handle complex negotiations | ✗ | ✓ |
| Attend meetings | ✗ | ✓ |
What does an AI SDR do?
An AI SDR automates repetitive SDR tasks. Underfive focuses on inbox management: reading replies to cold emails and DMs, sending human-like responses, handling objections, following up with unresponsive leads, and booking meetings. It does not make cold calls or attend meetings.
Can an AI SDR replace a human SDR?
An AI SDR replaces the inbox management portion of SDR work. It handles volume, responds faster, and works 24/7. Human SDRs are still needed for complex negotiations, relationship building, and attending meetings. Many teams use AI SDRs alongside human SDRs.
How much does an AI SDR cost?
Underfive costs a fraction of a human SDR salary. Plans start at $15/month for 50 replies. A full-time SDR costs $50,000-$80,000/year plus benefits. An AI SDR like Underfive can handle inbox management for thousands of leads at a fraction of the cost.
Is an AI SDR better than email automation?
Yes. Email automation sends pre-written sequences. An AI SDR reads and responds to replies intelligently. It understands context, answers questions, handles objections, and makes decisions. Email automation cannot do this.
What Underfive AI SDR Does
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