NextAutomation.
AI SDR CAPACITY

How many SDRs does one AI SDR actually replace?

One AI SDR runs ~18,000 dials, ~15,000 emails and ~1,500 LinkedIn touches per month — about 10× the throughput of a fully-ramped human SDR. Plug in your team and volume to see exact savings, payback period, and revenue recovered from 24/7 sub-5-minute response.

⚡ 1 AI SDR ≈ 10 humans on a blended outbound mix · 2026 benchmarks
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Tell us about your SDR motion
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CAPACITY
10×
1 AI SDR ≈ 10 humans at your blended motion. Your 3 humans handle ~180 qualified meetings/mo; 1 AI SDR alone handles ~600.
MONTHLY SAVINGS
$27,500
Human cost: $30,000/mo. AI SDR equivalent cost: $2,500/mo. Payback at $15K deploy: <1 month.
RECOVERED REVENUE
$42,000
Speed alone (sub-5min vs your current 1–4 hours) recovers ~17.5% close-rate uplift on inbound. Annualised: $504K/yr.

How throughput breaks down by channel

How to read this: Human throughput from Bridge Group 2024 SDR Metrics Report (median fully-ramped rep). AI throughput from observed performance across deployed NextAutomation voice-agent + sequencing clients. The Qualified meetings column is the only number that matters for revenue — it's also where AI's gap is widest.

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NextAutomation builds production AI SDRs in 14 days — voice + email + LinkedIn integrated into your CRM, with sub-5-minute inbound response and 24/7 outbound. Most clients pay back in <30 days.

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How the math works. Human SDR throughput is calibrated to the Bridge Group 2024 SDR Metrics & Compensation Report (median fully-ramped rep: ~30 dials/day, ~30 emails/day, ~15 LinkedIn touches/day) and adjusted for ~22 working days/month. AI SDR throughput reflects observed performance on deployed Vapi/Retell voice agents + Apollo/Clay sequencing + Make orchestration — typically 18K dials/mo, 15K emails/mo, 1.5K LinkedIn touches/mo per AI SDR. Loaded human cost defaults to $120K/yr (OTE + benefits + tooling). AI SDR all-in cost defaults to $2,500/mo. Recovered-revenue math uses the InsideSales/Velocify Lead Response Management Study + HBR "The Short Life of Online Sales Leads" decay multipliers — same engine as our Lead Response ROI tool. Industry adjustment reflects typical close-rate baselines per vertical. This is an estimate. Your actual numbers vary by lead quality, channel mix, and sales motion. Use it to size the opportunity, then test in a live pilot.
NextAutomation. · Build Unstoppable Businesses · AI SDR Capacity Calculator v1

AI SDR Capacity Calculator — FAQ

How many human SDRs does one AI SDR replace?

On a blended voice + email + LinkedIn motion, one AI SDR delivers roughly 10× the throughput of a human SDR (~600 qualified meetings/mo vs ~60 for a human at Bridge Group 2024 benchmarks). For pure outbound voice campaigns the ratio can hit 12–15×; for complex enterprise sales it drops to 4–6×. The calculator uses 10× as a conservative blended baseline.

What does an AI SDR actually cost per month?

A production AI SDR stack typically costs $2,000–$3,500/mo all-in: voice platform (Vapi/Retell ~$1,500), data + sequencing (Apollo/Clay ~$500), orchestration (Make/n8n ~$200), LLM (~$300). The calculator defaults to $2,500/mo per AI SDR — a realistic median once tuned and deployed.

What's an AI SDR's payback period?

For a 5-person SDR team at $120K loaded cost each, replacing the team with 1 AI SDR saves ~$47,500/mo. Even at a $15K deploy cost, payback is under 2 weeks. The calculator shows your exact payback in months based on your inputs.

How does response time tie into AI SDR ROI?

An AI SDR responds to inbound leads in under 60 seconds, 24/7. Per HBR/InsideSales research, sub-5-minute response correlates with 21× higher qualification rates than 30+ minute response. The calculator's third card quantifies the revenue you recover from that speed alone — often as large as the headcount savings.

Can AI SDRs handle complex enterprise sales?

AI SDRs excel at prospecting, qualification, meeting-booking, and post-meeting follow-up — the high-volume top of the funnel. They're not yet a fit for late-stage enterprise negotiation, which still needs senior AEs. The calculator's blended 10× assumes top-of-funnel work; for purely enterprise motions, mentally set the multiplier lower.

Where do the throughput benchmarks come from?

Human SDR benchmarks: Bridge Group 2024 SDR Metrics Report (~30 dials/day, ~30 emails/day, ~15 LinkedIn touches/day). AI throughput: derived from Vapi/Retell parallel-call capacity, Apollo/Clay sequence limits, and observed performance across deployed NextAutomation clients. Numbers are conservative blended medians, not best-case.