Compare
AI Sales Agent vs. Human SDR
The choice is no longer "should we hire another SDR?" but "should we hire another SDR or hire an AI salesperson for the same job?" This page lays out the cost, performance, and capability differences side-by-side, using publicly-known industry benchmarks for the human SDR figures and SallySells published pricing for Sally — an AI salesperson who works a tiered book of named accounts the way an elite rep works a territory.
Cost summary (Year 1)
| Metric | 1 fully-loaded human SDR | Sally by SallySells |
|---|---|---|
| Year 1 cash cost (base only) | ~$85K (fully loaded) | $17,988–$41,988 ($1,499–$3,499/month) |
| Commission | OTE/commission 30–50% of base | 10% of first-year value of deals she sourced |
| Paid on results? | No — base draws regardless | Most upside earned only when revenue lands |
| Tool stack they need to do the job | ~$725/mo — data, Sales Navigator, CRM seats, mailbox infra, meetings, e-signature | Included — one system, no point tools |
| Onboarding / ramp | 3–6 months to quota | About 48 hours to first reply |
| Hours worked | ~40/week | 24/7/365 |
| Response time on inbound | 29–42 hours average industry-wide | Under 1 minute on every lead |
| Follow-ups per lead | 92% of reps stop before touch 5 | 6+ touches on every lead, every time |
| Languages for live demos | 1 (rep's native) | 40+ on demand |
| Attrition risk | High — median SDR tenure ~14 months | Zero |
| Annual savings vs 1 SDR | Baseline | $43K–$67K |
| Annual savings vs SDR + account executive | ~$200K baseline | ~$158K |
Human SDR figures reflect typical US SMB-loaded cost (base, OTE commission, benefits, tooling, ramp loss, manager overhead) at 2026 market rates. Source: aggregated public benchmarks (Bridge Group, SalesHacker, RepVue) and SallySells operator estimates.
What each one is actually good at
| Capability | Human SDR | AI Sales Agent (Sally) |
|---|---|---|
| Inbound lead response | ~Yes (with delay) | Yes — under 1 min |
| Personalized cold outreach | Yes (templated in practice) | Yes — written from scratch in your voice |
| Multi-touch follow-up cadence | Yes (frequently abandoned) | Yes — 6+ touches, no thread forgotten |
| Live product demo | Yes — when scheduled | Yes — on demand, multilingual |
| Objection handling | Yes | Yes — in your voice |
| Outbound prospect sourcing | Yes | Yes — builds the book from your data and her own research |
| Works a tiered book of named accounts | Yes — a few hundred at most | Yes — up to 5,000 per Sally, tier one watched weekly |
| Watches every account for buying signals | Sporadically — when there's time | Continuously, indefinitely — acts the week a signal fires |
| Close the deal (contract / payment link) | Sometimes (AE work) | Yes — closes standard deals herself |
| Sees revenue through to invoice paid | No — the CRM stops at closed-won | Yes — read-only Stripe / QuickBooks |
| Complex negotiation and legal redlines | Yes | Hands off to humans, with full brief |
| In-person events and golf | Yes | No |
The three numbers that decide the comparison
1. Speed-to-lead. The most rigorously measured statistic in B2B sales: a five-minute first reply makes a prospect roughly 100× more likely to qualify than a 30-minute reply. The industry-average human response time is 29 to 42 hours. Only 0.1% of B2B companies are inside the five-minute window today. Sally is inside it on every lead, structurally.
2. Follow-up completion. 80% of B2B sales require five or more follow-ups. 92% of human reps give up before the fifth touch. 93% of converted leads are reached on touch six or later. Sally runs the cadence on every thread, every time, without fatigue or forgetting.
3. Fully-loaded cost. A single US SDR at SMB-loaded cost runs roughly $85,000 a year, and the account executive who takes the calls the SDR books roughly $115,000 — both drawing that base regardless of results. Sally's annual base is $17,988–$41,988 ($1,499–$3,499/month, Starter through Growth), plus a 10% commission on the first-year value of the deals she sourced. Because she covers both jobs — she builds and watches the book and runs the call and the close — the honest comparison is against the two-hire stack: about $158,000 a year. The breakeven point against a single SDR is well under one closed deal a year for most B2B price points.
When a human SDR is still the right answer
Hire a human if the buying motion depends on in-person presence — conferences, executive dinners, on-site evaluation. Hire a human if your deals are seven- and eight-figure enterprise sales where the relationship is the product. Hire a human if you sell into a regulated industry where every conversation must be conducted by a licensed professional. Outside those cases, hiring an additional SDR in 2026 is the more expensive of the two options for the same body of work.
How most teams actually deploy Sally
The most common configuration is not "AI replaces all humans." It is "Sally closes the standard, repeatable deals herself — and humans take the ones that need real negotiation." Sally owns the book: building it from your data and her own research, tiering it, watching every account for the moment to move, the one-at-a-time outreach from her own address on your domain, inbound response, follow-up, qualification, the live sales call, and the close on productized deals. The human team focuses on the deals that genuinely need a person at the table: enterprise pricing nuance, legal redlines, seven-figure relationships. And the prospect can ask for a human at any point in a call — Sally stops selling and the deal arrives as a structured Deal Brief, so nobody restarts at the beginning.
See it for yourself
Take Sally's sales call — eight minutes, no scheduling. Or read the broader comparison of AI sales agent tools.