AI SDR or human SDR: the short answer
The question is rarely 'machine or person'. It is which parts of the SDR job you want a person to spend time on. An SDR's week splits into research (who to contact and why), writing, sending and following up, sorting replies, and conversations: calls, objections, booking the meeting. Software now handles the first four well. People are still better at the last one. If the term is new to you, start with what an AI SDR is.
- Use an AI SDR if you are founder-led or a small team, need to test segments and messages quickly, and cannot justify a full-time hire yet.
- Hire a human SDR if your deals involve many stakeholders, the phone is central to your market, or you already have a repeatable message and need someone to work named accounts.
- Combine them once you have both volume and conversations to handle: the AI does research and first touches, people take the replies that turn into calls.
- Outsource if you want outbound running within weeks and nobody inside the company has time to manage it.
What does a human SDR cost in the first year?
The figures below are assumptions for illustration, not market statistics. Each one is labeled so you can swap in your own number, and the notes under the table say where to check it. The structure matters more than the total. Our guide to what an SDR really costs goes deeper on each line, including turnover.
| Cost line | Assumption | First-year cost |
|---|---|---|
| Base salary | $62,000 a year for a US-based SDR at an early-stage B2B company | $62,000 |
| Commission | $22,000 at target; 75% of it paid in year one because of the ramp | $16,500 |
| Employer payroll taxes | 7.65% Social Security and Medicare on $78,500, plus $500 of unemployment taxes | $6,505 |
| Benefits | Health insurance and a retirement match | $11,000 |
| Tools and data | CRM seat, contact data, sequencer and dialer at $400 a month | $4,800 |
| Recruiting | 15% of base as an agency fee, or the same value in interview time | $9,300 |
| Onboarding | Laptop, software setup and training material | $1,500 |
| Management | 3 hours a week of a manager valued at $90 an hour, over 46 weeks | $12,420 |
| Total | Year one, before ramp is counted | $124,025 |
Where to check each assumption
- Salary: the Bureau of Labor Statistics has no SDR category. Its occupational wage tables (OEWS) cover broader sales occupations, such as sales representatives for technical and scientific products, which include experienced, quota-carrying reps. Use them as an outer reference, and current job postings in your city for the base.
- Benefits: the BLS Employer Costs for Employee Compensation release splits employer spending into wages, insurance, retirement and legally required benefits every quarter. For scale, private-industry compensation costs averaged $46.89 per hour worked in June 2026, all jobs combined.
- Payroll taxes: the employer share of Social Security (6.2%, up to the annual wage base) and Medicare (1.45%) is set by federal law; unemployment taxes vary by state.
- Management: count it even when the manager is the founder. An hour spent coaching is an hour not spent selling.
What do an AI SDR, an agency and a managed service cost for the same year?
Here is the same exercise for the three other ways to fill the seat. The AI SDR lines use Startories' public plan prices as of October 2026; the agency line is an assumption to replace with real quotes. Someone still has to run the meetings in every scenario, so that time is left out of all of them. Other AI SDR vendors price differently; compare with Artisan's pricing or 11x's pricing overview if you are weighing them.
| Option | What you pay for (assumptions) | Year-one cost | Qualified meetings needed |
|---|---|---|---|
| In-house SDR | The table above | $124,025 | 92 (our assumption for the hire) |
| Outsourced SDR agency | $5,000 monthly retainer and $3,000 onboarding fee (both assumptions), plus 2 hours a week of your time at $90 over 48 weeks | $71,640 | 54 |
| AI SDR you run yourself | Startories Growth at $499 a month, optional done-for-you setup at $2,000 (midpoint of $1,500 to $2,500), plus 3 hours a week of your time at $90 over 48 weeks | $20,948 | 16 |
| Fully managed AI outbound | Startories managed service at its $1,999 a month entry price, before any setup fee, plus 1 hour a week of your time at $90 over 48 weeks | $28,308 | 21 |
Which parts of the job should each one own?
Look at the pattern in the table: AI is strongest before the first reply, and people are strongest after it. The middle rows are shared, with the AI doing the work and a person checking it until the funnel is proven.
| Task | Better owner | Why |
|---|---|---|
| Finding companies with a reason to buy | AI SDR | It can read thousands of posts and announcements a day and react within hours to a request for a tool recommendation or a new funding round. |
| Checking fit against your ICP | AI first, a person reviews | Scoring is fast; a person catches what no field shows, such as a former customer or a partner. |
| Finding and verifying the right contact | AI SDR | Repetitive lookups and email verification, done the same way every time. |
| Writing the first email | AI drafts, a person approves at first | Speed, with a check on tone and claims until the angle has proven itself. |
| Follow-ups and reply sorting | AI SDR | Sent on time, stopped on reply, every answer labeled; no bad weeks or sick days. |
| Answering interested replies | Person | Tone, timing and judgment matter most at this step. |
| Discovery calls and objections | Person | Live conversation: hearing hesitation and adjusting the pitch in real time. |
| Large accounts with many stakeholders | Person, with AI research | Months of relationship work across a buying committee, plus events and referrals that compound. |
Reach companies with a reason to buy this week
Startories finds the buying signal, verifies the decision-maker and runs the outreach until they book a call.
What can go wrong with each option?
Each path fails in its own way. Spotting the early sign saves you a quarter of wasted effort, whichever route you pick.
| Option | What goes wrong | Early sign | What to do |
|---|---|---|---|
| In-house SDR | Hired before the message works | Plenty of activity after the ramp, few positive replies | Test segments and angles first, then hand the hire a proven play |
| In-house SDR | Nobody has time to manage | One-to-ones get skipped; lists drift away from the ICP | Block a manager's hours before the start date, or postpone the hire |
| AI SDR | Generic data, generic emails | First lines that could go to anyone; replies saying 'wrong person' | Narrow the ideal customer profile and require a specific reason for each contact |
| AI SDR | Damaged sending reputation | Rising bounces, falling replies, mail landing in spam | Separate domains, capped volumes and an automatic pause on bounces; see the deliverability guide |
| Agency | Message drifts from your product | Prospects ask basic questions the emails should have answered | Approve copy, join the first calls, share notes on wins and losses |
| Agency | You do not own the assets | Domains, inboxes and lists sit in the agency's accounts | Put ownership in the contract before launch |
How does the hybrid model work?
The hybrid splits the job at the reply. The AI SDR detects signals, qualifies companies, finds and verifies the right person, writes the first email and the follow-ups, and classifies replies. A person (founder, account executive or SDR) takes every positive or interested reply, runs the call and decides what happens next.
AI finds and qualifies
Signals are matched to companies that fit your ideal customer profile, each with a score and written reasons you can check.
You set the guardrails
Approve emails before they go out at first; once a funnel performs, let it run within its sending limits.
AI runs the sequence
Follow-ups stop as soon as someone replies, and every reply is labeled: positive, interested, neutral, negative, out of office or unsubscribe.
People take the conversations
Your team answers positive replies, often starting from a suggested draft, and owns the meeting from there.
Review every week
Look at meetings and replies per funnel, cut what does not work and adjust the targeting or the angle.
A sample week for a founder running the hybrid
- Monday, 30 minutes: review new leads and the reasons behind their scores. Rejecting the ones that do not fit tightens the targeting for the following week.
- Tuesday to Thursday, 15 minutes a day: answer positive and interested replies, starting from the suggested drafts, and book the calls.
- Booked calls: run them yourself or hand them to an account executive, with the original signal attached so the call starts from context.
- Friday, 30 minutes: compare replies and meetings per funnel, pause the weakest angle and write a new one to test.
Outsourced SDR vs in-house: what changes?
Between hiring and automating sits a third path: an agency or managed service runs outbound for you. The trade-offs are about control and speed. One rule does not change: under the CAN-SPAM Act, both the company whose product is promoted and the company that sends the email can be held responsible, so outsourcing the work does not outsource the liability (FTC compliance guide).
- Who writes the copy, and do you approve it before anything is sent?
- How is a qualified meeting defined, in writing, and who decides when one counts?
- What do you receive each week: meetings and replies by segment, or only send volumes?
- Which domains, inboxes and lists stay with you if the contract ends?
- What is the notice period, and is there a trial phase with a clear target?
| In-house SDR | Outsourced SDR or managed service | |
|---|---|---|
| Time to first emails | Hiring time plus ramp (three months in our example) | Usually weeks, once targeting and copy are agreed |
| Product knowledge | Deep, and grows over time | Lighter; depends on how well you brief them |
| Cost structure | Salary, commission, tools and management | Monthly retainer or a fee per meeting |
| Control | Full control of messaging and process | Shared; agree on approvals and reporting up front |
| Ownership | Your domains, data and CRM history | Ask who owns domains, inboxes, lists and replies |
| Best when | You have a proven message and a manager | You need to start fast or test a new market |
When should you hire, automate or outsource?
Work through these questions in order. The first answer that points somewhere is usually the right starting point.
Do you have a message that already wins deals?
If not, automate first. Test two or three segments and angles for a month each with an AI SDR. Paying a salary for someone to discover the message is slow and hard to manage. Our guide to your first B2B customers covers this stage.
Can someone give a new hire three hours a week?
If nobody can, do not hire yet. An unmanaged SDR drifts from the ICP within weeks, and the cost table above assumes that coaching time.
Are positive replies piling up?
Then hire, or move an account executive onto them. The bottleneck is now conversations, not leads.
Are deals large, with many people involved?
Hire experienced reps and give them AI research, so their hours go into accounts, not lists.
Do you need activity within weeks and have no internal owner?
Outsource, with weekly reporting on meetings, ownership of every asset and a clear way out.
Frequently asked questions
Is an AI SDR cheaper than a human SDR?
On direct cost, usually by a wide margin. In our worked example a first-year hire costs about $124,000 against about $21,000 for an AI SDR plan plus your time. They do different work, though, so compare cost per qualified meeting, not salary against subscription.
How many meetings does an AI SDR need to book to beat a hire?
In our example the hire costs about $1,348 per qualified meeting, so the self-run AI SDR on the Growth plan breaks even at about 16 qualified meetings a year. Rebuild the numbers with your own salary, pace and plan before you rely on them.
Can an AI SDR fully replace a human SDR?
For research, first emails, follow-ups and reply sorting, it can. For calls, complex accounts with many stakeholders and relationship work, people remain better. Most small teams let the AI prospect and have a founder or account executive handle the conversations.
Is it better to outsource SDRs or hire in-house?
Outsource when you need activity within weeks or nobody can manage an SDR. Hire in-house when you have a proven message, a manager and deals that reward deep product knowledge. Either way, make sure you keep ownership of the domains, lists and replies.
How long does a human SDR take to ramp?
It depends on the product and the market. Our example assumes partial output in the first three months, which is a planning assumption rather than a benchmark. Technical products and complex buyers tend to take longer, so put the ramp into your first-year cost.
What does a hybrid AI and human SDR team look like?
The AI SDR finds and qualifies companies, verifies contacts, sends first emails and follow-ups, and sorts replies. People take positive replies, run calls and work key accounts. Someone reviews results weekly and adjusts the targeting.