The AI SDR vs human SDR question is a unit-economics comparison: a fully loaded human SDR costs $103k–$158k a year and books higher-quality meetings; an AI SDR costs a fraction of that and responds to every lead instantly. The honest comparison is cost per held meeting — booked meetings that no-show aren't pipeline.
On sticker cost-per-booked-meeting, AI wins by up to 10x ($39–$403 vs $425–$1,083). But human-booked meetings are held 70–85% of the time versus 40–60% for AI-booked ones — the show-rate gap eats much of the sticker advantage, which is why teams that measure held meetings make better decisions than teams that measure bookings.
| Human SDR | AI SDR | |
|---|---|---|
| Fully loaded annual cost | $103k–$158k | $18.6k–$72.6k |
| Cost per booked meeting | $425–$1,083 | $39–$403 |
| Meeting show rate | 70–85% | 40–60% |
| Cold-email reply rate (100K paired) | 5.2% | 4.1% |
| First-response SLA | Business hours, queue-bound | Seconds, around the clock |
monday.com grew outbound meetings from 120 to 180 per month with zero additional headcount after deploying AI agents (Alta case coverage, 2026), and told investors headcount would stay "largely flat" on AI productivity grounds (Q1 2026 earnings call). The team restructured toward oversight — it didn't disappear.
It depends on show rates and volume more than subscription price. Run your own numbers in our cost calculator — it models ramp time, both show rates, and cost per held meeting, with defaults from verified benchmarks.
Industry field data (AiSDR 2026 industry report) shows winning teams settle at a 70/30 AI-to-human workload split by month six: AI carries speed and volume (especially inbound response), humans carry complex, high-stakes touches.

Expertise identifies your website visitors, runs qualified conversations, and books the meeting — while intent is still live.