The True Cost of a Human SDR
Most VP Sales know what they pay their SDRs. What they underestimate is what those SDRs actually cost. Base salary gets the headline. The fully-loaded number — with benefits, tools, management overhead, ramp time, and turnover — is often 2x what's on the offer letter.
| Cost Component | Amount |
|---|---|
| Base salary | $65,000 |
| OTE/commissions (partial attainment) | $25,000 |
| Benefits + payroll taxes | $22,000 |
| Tools (CRM, sequencer, data) | $9,000 |
| Management overhead (amortized) | $18,000 |
| Ramp cost (annualized) | $8,000 |
| Turnover cost (annualized at 35% rate) | $12,000 |
Most teams budget $80,000–$100,000 when they hire an SDR. The real number is closer to $150,000–$175,000 when everything is accounted for.
What an AI SDR Actually Costs
AI SDR platforms have a wide cost range:
- Email-sending tools (Instantly, Smartlead, Clay): $39–$379/month. These are not AI SDRs — they're email sequencers. They send; they don't manage replies or book meetings. Budget $500–$4,500/year.
- Mid-tier AI SDR platforms (Outbound24): $99–$299/month, including prospect research, personalized outreach, reply handling, and meeting booking. Budget $1,200–$3,600/year.
- Enterprise AI SDR platforms (11x, Artisan): $2,000–$5,000+/month. Budget $24,000–$60,000+/year.
- Oversight time: Plan for 3–5 hours/week of monitoring from a sales ops person: $9,000–$15,000/year in human time.
AI SDR cost summary:
| Platform Tier | Platform Cost | Oversight | Total Annual |
|---|---|---|---|
| Email tools (Instantly) | $1,500 | $12,000 | ~$13,500 |
| Mid-tier AI SDR (Outbound24 Growth) | $1,188 | $12,000 | ~$13,200 |
| Enterprise AI SDR (11x) | $36,000 | $9,000 | ~$45,000 |
The Apples-to-Apples Comparison
| Metric | Human SDR | AI SDR (Mid-tier) |
|---|---|---|
| Fully-loaded annual cost | $150,000–$175,000 | $13,000–$20,000 |
| Time to productivity | 3–6 months | 1–2 weeks |
| Operating hours | ~40/week | 24/7/365 |
| Outreach capacity | 40–80 touches/day | Unlimited (domain-capped) |
| Scale cost | Linear (hire more) | Near-zero marginal cost |
| Churn/replacement cost | $20,000–$40,000/event | $0 |
The math isn't close. A mid-tier AI SDR platform costs roughly 8–12% of a fully-loaded human SDR.
What AI SDRs Still Can't Replace
- Complex multi-stakeholder deals: When you're navigating a 6-person buying committee at an enterprise, AI can help with outreach but struggles with the contextual nuance required to manage a real relationship.
- Inbound qualification with context: A prospect who fills out your demo form after reading three blog posts needs a different conversation.
- Objection handling depth: AI can handle first-level objections in email. It cannot match the back-and-forth of a skilled SDR on a call.
- Executive outreach: C-suite cold outreach for large ACV deals often requires the credibility signal of a human name.
The Hybrid Model Most Companies Are Moving To
The model that works:
- AI SDR handles cold outreach at scale — initial prospecting, first 2–3 touches, basic qualification via email
- Human SDR picks up at the reply stage — once a prospect engages, a human takes over for discovery
- AE closes — handoff from qualified meetings only
This lets a team of 2–3 SDRs operate with the pipeline volume of a 6–8 person team. Companies running this model report 35–50% reduction in cost-per-meeting-booked compared to fully human teams.
The Bottom Line
If your fully-loaded SDR cost is $150,000+/year and you're getting 40–60 qualified meetings/year from that investment, your cost-per-meeting is $2,500–$3,750. A mid-tier AI SDR platform at $1,200–$3,600/year generating 30–50 meetings/year puts your cost-per-meeting at $72–$120. The math is hard to ignore.