QualifyLoop
AI SDR Cost vs Hiring an Inbound SDR: Worked Numbers (2026)
AI looks far cheaper per conversation, but the two don't do the same job. Here's the calculation with sources and assumptions, so you can swap in your own numbers.
Quick answer
On Bridge Group's $80,000 median OTE, an SDR costs about $119,000 a year with an assumed 20% employer load and a share of a manager, or about $31 per inbound lead at 15 leads a day. AI SDR tools range from about $0.25–$0.50 per conversation at the low end to $10 per qualification or flat plans of $2,000–$4,000 a month and up. AI can take first-touch qualification, but it won't replace discovery, judgment or outbound.
What an inbound SDR costs
The Bridge Group's 2025 report (351 B2B companies, mostly North American SaaS) puts median OTE at $80,000, with a $55,000 base, 3.0 months of ramp, 1.9 years of tenure and 60% of SDRs at quota. It doesn't split inbound from outbound.
| Item | Annual | Basis |
|---|---|---|
| On-target earnings | $80,000 | Bridge Group median |
| Employer taxes and benefits | $16,000 | Our assumption: 20% |
| Share of manager | $22,800 | Bridge Group: $146K manager OTE ÷ 6.4 SDRs |
| Subtotal | $118,800 | Before tools, data, recruiting and ramp |
At about 15 inbound leads a day, a figure from a secondary benchmark, and 21 working days a month, that's about 315 leads a month, or $31 per lead ($9,900 ÷ 315). Your number will differ, and if your SDR also does outbound the comparison changes.
What AI SDR tools cost
| Tool | Published price | Unit |
|---|---|---|
| QualifyLoop Business | $349/mo for 1,000, then $0.25 | AI conversation |
| QualifyLoop Growth | $99/mo for 200, then $0.35 | AI conversation |
| HubSpot Customer Agent | ~$0.50 (reported), plus HubSpot seats | Resolved conversation |
| Fin | $0.99; $9.99 per qualification | Outcome |
| Breakout Growth | From $2K/mo | Plan |
| Docket Core | From $4K/mo, annual; unlimited conversations | Plan |
| Warmly Inbound Chat | From $20,000/yr | Plan + credits |
| Qualified | ~$40K–$68K/yr reported | Sessions + contacts |
These units aren't equivalent. A QualifyLoop conversation may produce nothing, while a Fin qualification is charged on an outcome, and a good-value flat plan depends on volume.
Cost at 1,000 conversations a month
| Option | Monthly | Annual |
|---|---|---|
| QualifyLoop Business | $349 | $4,188 |
| HubSpot Customer Agent, credits only | ~$500 if all resolve | ~$6,000 + seats |
| Breakout Growth | From $2,000 | From $24,000 |
| Docket Core | From $4,000 | From $48,000 |
| One inbound SDR | ~$9,900 | ~$118,800 |
Cost per conversation doesn't tell you the value. Measure the cost per qualified meeting held, using the same definition for both.
What AI can and can't replace
| Good fit for AI | Keep a human |
|---|---|
| Instant response at any hour | Discovery with complex buying groups |
| Basic fit questions | Pricing negotiation and objections |
| Booking on a calendar | Target accounts where one mistake is costly |
| Screening students, job seekers and support requests | Outbound research and multi-threading |
The most sensible first step is usually a mix: AI covers nights, weekends and low-fit traffic, and people handle target accounts. Fast response matters, but the research has limits.
Run your own numbers
- Pull 90 days of inbound conversations and meetings held.
- Calculate your cost per qualified meeting today.
- Run AI on some pages, or out of hours, for two to four weeks, and compare.
- Count the human time still needed to review transcripts and follow up.
We make QualifyLoop, so weigh this accordingly. Prices come from each vendor's public pricing page, checked November 2026, unless marked as reported. We haven't run every tool hands-on, and vendors change prices often, so confirm before buying. Spot an error? Email [email protected].
Frequently asked questions
How much does an AI SDR cost?
Published prices range from free tiers and about $0.25 to $0.50 per conversation, up to flat plans from $2,000 to $4,000 a month and reported enterprise contracts of $40,000 to $68,000 a year. Units differ, so compare on cost per qualified meeting.
How much does an inbound SDR cost?
Using Bridge Group's $80,000 median OTE, a 20% employer load and a share of a manager, about $119,000 a year before tools, recruiting and ramp.
Can an AI SDR replace a human SDR?
It can replace some first-touch qualification and booking, especially out of hours. It doesn't replace discovery with complex buying groups, negotiation or outbound research.