Which AI SDR fits a sales team you already have?
Six AI prospecting agents compared on what matters once you have quota-carrying reps: cost per seat, CRM sync, account ownership and who controls the message.
Short answer. If your team already runs on HubSpot, start with its Prospecting Agent: it researches accounts, finds decision makers and drafts outreach in each rep's voice, right inside the CRM, for $1 per lead it recommends. If you want one agent running sequences around the clock for the whole floor, Humanlinker and Reply.io Jason AI SDR are the next calls: Humanlinker at €69 per rep per month keeps reps on the pen, Jason starts at $500 a month flat with unlimited users and mailboxes.
A sales org with headcount doesn't buy an AI SDR the way a solo founder does. You already have a CRM, territories, reps who don't want a bot emailing their accounts, and a VP who has to defend the line item against another SDR hire. We compared six agents on exactly that, using each vendor's official 2026 pricing and what users report after rollout.
The ranking is editorial: a sponsored spot is always labeled on its card, and no affiliate link changes a score.
The right AI SDR for your team
Lives in the CRM, writes in each rep's voice, billed per recommended lead.
Best for reps who want to keep the penAI or hybrid campaigns, rep stays in the loop, €69 per rep per month.
Best flat-rate agent for the whole floor$500 a month flat, unlimited users and mailboxes, adjustable autopilot.
Best pay-as-you-go autonomous agentAmi builds, runs and tunes the campaign; $1.50 per person prospected, no subscription.
Best all-in-one platform for teamsData, sequences and Duo agents in one tool; $600 a month for 2 users.
Best for prospecting in several languagesAgent Frank prospects nonstop, autopilot or co-pilot, in 20+ languages.
6 AI SDRs for sales teams, side by side
Every score is the one from that tool's full review on our site, across five criteria. Agent Frank doesn't have a review yet, so its score is built on the same criteria from its official page and user feedback. Prices come from vendor pricing pages; if a vendor doesn't publish a number, it isn't here.
| Best for | Free plan | Team size | Visit | ||||
|---|---|---|---|---|---|---|---|
| 1 | HubSpot Prospecting Agent | Best for teams already on HubSpot | 4.2/5 | $1/lead + seat from $20 | — | Teams that live in HubSpot | Visit → |
| 2 | Humanlinker | Best for reps who want to keep the pen | 3.9/5 | €69/mo per rep | — | Teams of 1 to 5 reps | Visit → |
| 3 | Reply.io Jason AI SDR | Best flat-rate agent for the whole floor | 3.8/5 | From $500/mo | — | Teams of 5+ reps | Visit → |
| 4 | AiSDR | Best pay-as-you-go autonomous agent | 3.8/5 | $1.50/person prospected | — | Teams adding pipeline without hiring | Visit → |
| 5 | Amplemarket | Best all-in-one platform for teams | 3.8/5 | $600/mo, 2 users | — | Teams of 2 to 10 reps | Visit → |
| 6 | Salesforge Agent Frank | Best for prospecting in several languages | 3.6/5 | $499/mo, quarterly | — | Teams selling across countries | Visit → |
Prices exclude tax, in the vendor's currency. HubSpot bills the agent in credits, on top of the CRM seat.
Is your tool missing from this page? Email us: hello@hackceleration.com
How we compared and scored
For a sales team, an AI SDR is an agent that finds prospects, writes and sends the sequences, and handles replies, with an autonomy level a manager can dial up or down. It has to log everything in the team's CRM and hand the conversation back to a rep the moment a prospect wants to talk. A tool that only helps write is a copilot, and we say so on its card.
We kept six agents that meet that bar and publish a price you can actually read. Qualified Piper, 11x and Artisan are out: no published pricing. lemlist, La Growth Machine, Regie.ai and Unify are strong sequencers, but their pages don't describe enough agent autonomy to rank them here. Each score matches the tool's full review, so a tool is worth the same everywhere on the site.
- Features and depthAccount research, copywriting, multichannel sending, reply handling, and the autonomy dial (copilot vs autopilot).25%
- Value for moneyCost for the whole team: seats, credits, per-lead pricing, add-ons and contract length.25%
- IntegrationsWrites back to the team's CRM, so nobody double-enters data or works the same account twice.20%
- Ease of useTime to a clean first campaign, and how fast a rep can approve a draft.15%
- Customer supportSetup help, a named contact, and how easy it is to cancel.15%
Some links are affiliate links. They fund the Labs and never change a score.
HubSpot Prospecting Agent
HubSpot's Prospecting Agent does the research half of an SDR's day: it works through accounts, spots buying signals, scores ICP fit, finds the decision makers and drafts first-touch outreach for email, LinkedIn or a call. It drafts in each rep's voice, and everything stays on the CRM record.
Who it's for: a team on Starter, Professional or Enterprise that wants hours back on prospect research without adding a tool. Messages go out in each rep's voice, from the CRM where accounts are already assigned. Who it's not for: a team on Salesforce or Pipedrive. Outside HubSpot it doesn't make sense.
The catch: review is the safe default. HubSpot lets you check drafts each time you enroll contacts, and a fully autonomous mode sends without review. Its strength is research more than volume. Credit spend moves with the number of leads it recommends, and it stacks on top of seat pricing.
- Account research, buying signals and ICP fit scoring
- Outreach drafted in each rep's own voice
- Email, LinkedIn and call scripts from the CRM record
- Available from the Starter edition
- ✓Zero double entry: it's already in the CRM
- ✓Draft review or fully autonomous mode, your call
- ✓Billed per recommended lead, not per month
- ✗Pointless outside HubSpot
- ✗Less volume-oriented than AiSDR or Jason
- ✗Credit budget is hard to forecast in month one
The obvious pick if your reps already live in HubSpot. Run it on one segment and watch how many leads it recommends per week before you let credits run.
Humanlinker
Humanlinker calls itself an AI sales copilot. It runs fully AI campaigns or hybrid ones, sends across channels with no cap and automates LinkedIn InMails. One AI credit buys a full outbound sequence for one prospect; three credits buy a pre-meeting brief.
Who it's for: a handful of reps who want help but won't let anything go out under their name unreviewed. The vendor is French, which shows in how well it handles European prospects, and the meeting brief is handy for reps who walk into calls cold. Who it's not for: a team that wants an agent prospecting on its own overnight. Humanlinker is semi-autonomous by design.
The catch: the Pro plan's 200 AI credits are per year, not per month, so an active team burns through them. Pro caps at 5 users, and Business and Enterprise are quote-only. Users call the interface busy and some messages too casual for formal markets.
- Fully AI or hybrid campaigns, your choice
- Unlimited multichannel sending and automated InMails
- Pre-meeting brief before every call
- European vendor
- ✓Clear per-rep entry price
- ✓Reps keep control of every message
- ✓14-day trial on your real ICP
- ✗Only 200 AI credits a year on Pro
- ✗Pro capped at 5 users
- ✗Tone can run too casual, needs editing
Right for a small team that wants AI help without handing over the message. Do the math on credits: 200 a year is roughly 200 full sequences for the whole plan.
Reply.io Jason AI SDR
Jason AI SDR is Reply.io's agent. On Autopilot it sources contacts that match your criteria, personalizes messages and runs the sequence continuously. Replies land as drafts for approval, or go out automatically if you allow it. For meetings, it drops the rep's booking link.
Who it's for: a multi-rep team. The flat fee doesn't count users or mailboxes, so the bigger the team, the lower the cost per seat. Who it's not for: a team that hasn't nailed its offer and playbook yet. Jason needs both, plus a knowledge base, to do decent work.
The catch: sourcing burns credits and contact quota. Customers complain about annual plans renewing automatically, so put the renewal date on the calendar the day you sign.
- Autopilot: sourcing, personalization and continuous sequences
- Replies as drafts to approve, or sent automatically
- Unlimited users and mailboxes on the flat plan
- Rep's booking link dropped into replies
- ✓Per-seat cost drops as the team grows
- ✓Autonomy adjustable reply by reply
- ✓Full sequencer around the agent
- ✗Needs your offer, playbook and knowledge base
- ✗Sourcing eats credits
- ✗Watch the annual auto-renewal
The best autonomy for the money on a mid-sized floor. Keep replies in draft mode for the first month while you check the tone.
AiSDR
AiSDR is the most autonomous of the six. Its agent, Ami, builds the campaign, runs it and sharpens it as replies come in: contact data, email and LinkedIn sequences, personalized copy, inbox warm-up, bounce checks, then reply sorting and responses. It answers in minutes, or switches to co-pilot mode if you'd rather approve.
Who it's for: a team that wants an extra outbound channel next to what reps already do, paid by usage. Who it's not for: a team that wants a human to read every message. You can, but you lose the point of the tool.
The catch: AiSDR doesn't publish exactly what counts as a "person prospected". Managed add-ons climb fast: a warmed inbox at $33, a managed campaign at $149, the fully managed service at $2,500 a month. No free plan.
- Campaign built, launched and tuned by the agent
- Inbox warm-up and bounce checks included
- Replies in minutes, or co-pilot mode
- Pay per prospect, charged daily
- ✓No subscription, no monthly minimum
- ✓Most autonomous agent in this ranking
- ✓Annual is 20% cheaper than quarterly on Team
- ✗Billing unit loosely defined
- ✗Managed add-ons are expensive
- ✗Thinner integrations than the rest
The easiest way to trial a real autonomous agent without a contract. Point it at a segment your reps don't touch, so no account gets hit twice.
Amplemarket
Amplemarket bundles a contact database, a sequencer and the Duo family: Duo Copilot, Duo Copywriter, Duo Signals, and AI agents that monitor signals, research prospects and personalize outreach on every plan. Duo Voice comes with Growth and Elite.
Who it's for: a team of two to ten reps paying for three tools today and ready to consolidate. Plans step up by user count (2, 4, then 10), which fits a growing team. Who it's not for: a team selling mostly outside North America. Users report patchy international contact data.
The catch: no monthly option, so $600 a month means a one-year commitment. Reviewers describe frequent LinkedIn disconnects, hit-or-miss Duo lead suggestions and billing they found confusing.
- Contact data, sequences and Duo agents in one tool
- Agents that monitor signals and personalize outreach
- User tiers of 2, 4 and 10
- Free trial on every plan
- ✓One contract instead of three
- ✓Agents included from the first plan
- ✓Extra users can be added
- ✗Annual commitment only
- ✗Weaker data outside the US
- ✗LinkedIn connection reported as fragile
Strong for a team selling mainly into the US that wants one platform. During the trial, check bounce rates on your real international accounts before you sign the year.
Salesforge Agent Frank
Agent Frank is Salesforge's AI SDR. It prospects 24/7, on Auto-Pilot or Co-Pilot, against a database of 500M+ contacts, and writes in more than 20 languages. Every customer gets a dedicated account manager and a Slack channel.
Who it's for: a team covering the US, Europe and Latin America at once, where the message language has to follow the prospect. The account manager helps with initial setup. Who it's not for: a team that wants to self-serve. A demo is required before you get access.
The catch: users say the advanced settings are hard at first and CRM connections can be fiddly. Dedicated sending infrastructure is a $416 a month add-on. Agent Frank has no full review on our site yet, so its score is built from these facts.
- 24/7 prospecting on Auto-Pilot or Co-Pilot
- Writes in 20+ languages
- Database of 500M+ contacts
- Dedicated account manager and Slack channel
- ✓Useful for multi-country teams
- ✓Human onboarding included
- ✓Per-contact price drops above 2,000 contacts
- ✗Demo required before access
- ✗Advanced settings take work
- ✗CRM connection can be fiddly
The pick for a team prospecting in several languages. In the demo, ask exactly how Frank writes back to your CRM and who takes over when a prospect replies.
Rollout plays that work with an existing team
Most AI SDR rollouts don't fail because of the tool. They fail because of how the agent gets dropped next to a team that's already selling. Here's a 30-day pilot in six steps, in order, with what to configure at each one.
Give the agent a segment no rep owns
Week 1The first fight in an existing team is the double touch: the agent emails a VP your AE is already working. Pick a segment nobody has in their book: a company size, a region or a vertical you've ignored. Tag those accounts in the CRM before anything launches.
Tip: hand those accounts to one volunteer rep for the pilot. You'll see exactly what the agent produced, without paying for an extra seat.
- Goal
- No account worked twice
- Configure
- Account owner in the CRM
Send from separate, warmed domains
Week 1The biggest risk with a high-volume agent is a burned domain. If your primary domain lands in spam, your reps' emails and your invoices stop landing too. Have the agent send from secondary domains, and warm the inboxes before the first send.
AiSDR includes warm-up and sells a warmed inbox for $33. Salesforge offers dedicated sending infrastructure as an add-on. Reply.io counts mailboxes as unlimited on its flat plan.
- Goal
- Protect the primary domain
- Configure
- Secondary inboxes and warm-up
Start on co-pilot, move to autopilot later
Weeks 1-2All six agents can hold messages as drafts. For the first two weeks, route every message or reply through a rep. They fix the tone, the agent learns the playbook, and the team sees what goes out under its name.
Switch to autopilot only on steps that no longer raise questions, usually follow-ups. Objection handling tends to stay better in human hands.
- Goal
- Reps buy in
- Configure
- Drafts and approvals
Make the agent write to the CRM, not next to it
Week 2An agent that keeps conversations in its own app creates double entry: reps can't see what was said, and the manager can't see pipeline. Check that every message, reply and meeting lands on the contact record.
This is where user reviews complain most, notably about Agent Frank and AiSDR. HubSpot avoids it entirely, since the agent lives in the CRM.
- Goal
- One source of truth
- Configure
- Activity sync
Set the handoff to the rep
Week 3When a prospect wants to talk, who picks it up, and how fast? Write the rule before it comes up: positive replies route to the territory rep with an alert, and the agent stops on that contact.
AI-booked meetings have a reputation for lower show rates than human-booked ones. A short confirmation call from the rep the day before cuts no-shows. Humanlinker's meeting brief is built to prep exactly that call.
- Goal
- No positive reply lost
- Configure
- Routing and alerts
Judge the pilot on meetings held
Week 4After 30 days, ignore emails sent and open rates. Look at cost per meeting held: what the tool cost for the month, divided by meetings that actually happened. Compare it with what the same meeting costs when a rep sources it.
Track rep time spent reviewing and editing, too. An agent that eats an hour of a rep's day isn't free.
- Goal
- Decide on a real number
- Measure
- Cost per meeting held
Choosing an AI SDR when you already have a team
The right agent depends less on its feature list than on your team: its CRM, headcount, markets, and what your reps will let a machine do. These six cases cover the most common setups.
Your team lives in HubSpot
5 to 20 reps, one agent for all
A small team that wants to keep control
More pipeline, no new hire
Replace three tools with one
Be wary of full-autonomy pitches
- Confirm the agent logs every message and reply on the contact record in your CRM.
- Ask how the agent avoids emailing an account a rep already owns.
- Send from warmed secondary domains, never from your primary domain.
- Price the whole team: seats, credits, per-lead fees and managed add-ons.
- Read how the billing unit is defined (lead, contact, credit) before comparing two prices.
- Put the renewal date and cancellation notice on the calendar the day you sign.
- Keep messages in draft for the first two weeks and have a rep check the tone.
- Every cold email says who is writing, why this person, and offers a working opt-out.
AI SDR for sales teams · your questions
Can an AI SDR replace a human SDR on my team?
It can replace part of the SDR workload, not the rep who closes. All six agents here find prospects, write and follow up; deep qualification, negotiation and relationships stay human. The model that holds up over time is hybrid: the agent handles volume, and a rep takes over the moment a prospect replies.How much does an AI SDR cost for a team of 5 reps?
It depends on the billing model. Humanlinker is €69 per rep per month, so €345 for five. Reply.io Jason AI SDR starts at $500 a month regardless of users. AiSDR charges $1.50 per person prospected with no subscription. Amplemarket starts at $600 a month for two users, and five reps need a higher tier.How do I stop the AI and a rep from emailing the same prospect?
Give the agent accounts no rep owns, and tag them in the CRM. Then check that the agent reads account ownership before it writes. With HubSpot the agent works inside the CRM where accounts are already assigned and drafts in each rep's voice: still check assignments before launch.Is an AI SDR worth it compared with hiring another SDR?
Only if you measure it on cost per meeting held, not on emails sent. Run a 30-day pilot on a segment nobody owns, add up tool cost plus the rep time spent reviewing, and compare with what a sourced meeting costs today. If the agent can't beat that, the hire is still the better bet.Can an AI SDR prospect in other languages?
Yes, with uneven quality. Agent Frank lists more than 20 languages, and Humanlinker is built by a European vendor. For the rest, have a native-speaking rep review the first messages: an overly casual tone or a translated phrase stands out immediately to a buyer in Germany, France or Mexico.Who should own the AI SDR on the team?
One person, usually the sales manager or whoever runs sales ops. They set targeting, approve the playbook, track cost per meeting held and settle account conflicts. An agent that everybody tweaks a little ends up writing anything to anyone.Do I need a free trial to choose?
It helps, and two agents here offer one: Humanlinker for 14 days, Amplemarket on every plan. AiSDR has no trial but is pay-as-you-go, which works the same for a small pilot. Agent Frank requires a demo first. Either way, judge on your real ICP, never on the vendor's demo data.What if the agent hurts our domain reputation?
Pause sending, then trace where the bounces and spam complaints come from. To avoid it, always have the agent send from warmed secondary domains, with volume ramping slowly. If the primary domain stays clean, your reps' email and billing keep landing while you fix it.