Best AI SDR Tools 2026: 15 Compared With Prices

An AI SDR (artificial intelligence sales development representative) is software that runs the prospecting half of an SDR's job: it finds people who fit your ideal customer profile, researches them, writes and sends outreach, answers replies and books meetings. The 15 best AI SDR tools for 2026, with prices checked on each vendor's own page on October 30, 2026:

1. 11x: Alice Growth from $3,750 a month billed annually (11x's FAQ says $36,000 a year)
2. HubSpot Prospecting Agent: $1 a lead, inside HubSpot
3. Agentforce SDR: $2 a conversation or $0.10 an action
4. Clu (our product): $49 a seat a month, agents from Pro at $89
5. Artisan: Free plan; Intern $250 a month billed annually
6. AiSDR: $1.50 a person contacted, no subscription
7. Salesforge Agent Frank: $499 a month billed annually
8. Reply.io Jason: $500 a month billed annually
9. Amplemarket Duo: $600 a month on an annual term, 2 users
10. Apollo: Free plan; Basic $49 a seat a month billed annually (read October 16)
11. Regie.ai RegieGO: Free plan; Pro $49 a month
12. Qualified Piper: no published price
13. Breakout: Inbound AI SDR from $2,000 a month
14. Aircall AI Voice Agent: $0.49 a minute
15. Relevance AI: no published price

Disclosure: We make Clu, so read this as a vendor's guide. Clu is fourth of the 15, labeled as our product, and its plans are on the Clu pricing page. Every competitor price comes from the vendor's own page, with the URL in the sources.

AI SDR tools compared

"No published price" means the vendor's pricing page asks for a demo or a sales call.

Not listed: Persana, which some AI answers still name for "ai sdr tools". Persana's own blog announced in March 2026 that it is sunsetting the platform.

The 15 AI SDR tools

1. 11x (Alice and Julian)

11x sells two agents. Alice, its AI outbound SDR, builds prospect lists from a database of 400M+ verified B2B contacts and runs sequences across email, LinkedIn and a dialer, with consented outbound calling. Julian, the inbound agent, answers new leads in seconds by phone, chat, SMS or WhatsApp, qualifies them and books the meeting.

Price (checked October 30, 2026): Alice Growth starts at $3,750 a month billed annually for up to 5 users and 2,000 new prospects a month; Pro (5,000 prospects) and Enterprise (10,000+) are custom. Julian Voice starts at $5,333 a month for 2,000 calls and Julian Chat at $2,417 a month for 3,000 chats, billed annually. The same Alice page's FAQ says 11x "starts at $36,000 per year on the Growth plan," which does not match $3,750 a month ($45,000 a year), so ask which figure applies before you sign.

Best for: larger teams that want outbound, inbound and phone agents from one vendor on an annual contract.

2. HubSpot Prospecting Agent

HubSpot's Prospecting Agent monitors buying signals, scores accounts against your ICP, researches each account, finds the right contacts and drafts emails in each rep's voice. Reps review each draft or switch to a fully autonomous mode that sends without review. The HubSpot Prospecting Agent review tests it in more depth.

Price (checked October 30, 2026): $1 for each lead the agent recommends outreach for, paid in HubSpot Credits, on the Starter, Professional and Enterprise editions.

Best for: HubSpot customers who want an AI SDR without adding a vendor.

3. Agentforce SDR (Salesforce)

Agentforce SDR is Salesforce's customizable SDR agent. Salesforce's FAQ calls it "designed for outbound outreach," while Piper is the ready-made option for inbound leads. The agent writes outreach from your CRM data, works the inbound leads you route to it, answers emailed questions from documents such as a pricing guide and offers real-time calendar availability for booking.

Price (checked October 30, 2026): no SDR-specific price. Flex Credits cost $500 per 100,000 (20 credits, or $0.10, a standard action; 30 for voice), conversations $2 each, and Agentforce add-ons for Sales $125 a user a month. Max starts at $550 a user a month with the add-on and Flex Credits included.

Best for: Salesforce customers with an admin who will configure the agent's workflows.

4. Clu (our product)

Disclosure. We make Clu. Its 98% verified email and 85% direct dial figures come from our own 500-lead benchmark, which named no other vendor.

Clu gives you AI agents that run your GTM, including the prospecting half of an SDR's job. Clu, our GTM agent, finds buyers across 1B+ profiles, gets verified emails and direct dials from 25+ providers, adds them to sequences that send from each rep's own inbox, and syncs to HubSpot or Salesforce. Starter is $49 a seat a month, and always-on agents and CRM sync start on Pro at $89.

Clu builds each agent from one sentence, such as "Every Monday, find new people who match my ICP, get their verified work emails, and send me the list in Slack." Nothing saves until you click Accept, and an agent turns on only after an explicit yes. On its schedule the agent searches for new people who match your ICP and never sends you the same person twice, finds work emails and phone numbers across the waterfall, can score each lead from 0 to 100 against your ICP with the reasons written down, and adds it to a sequence. An Approve step can hold each lead for a person's yes. See the prospecting automation agent for the weekly job, and the find similar companies agent for lookalikes of your best customers and their buyers.

Every agent carries a credit limit and a record limit per run. A verified work email is 1 credit and a phone number 10. You can build agents with Clu during the 14-day Pro trial; running them needs Pro, at $89 a seat a month or $67 billed annually with 5 active agents per workspace, or Enterprise with unlimited agents. Reps keep the sequence copy and the phone: your team writes each email once, with variables, and call steps are tasks with no built-in dialer. Clu sells no intent data or technographic filters.

Best for: lean outbound teams that want agents to find, verify and sequence new leads every week while reps work the replies and the calls.

5. Artisan (Ava)

Ava is Artisan's AI BDR. She searches 250M+ verified B2B contacts, writes the emails, sends them in your reps' names from your own domains, answers replies and books meetings. Reps keep the phone: Artisan says Ava cannot legally make calls, and sells a human power dialer at $67 a seat a month billed annually ($75 monthly). Approvals, tone and call-to-action locks are settings you can switch on.

Price (checked October 30, 2026): Free gives 300 credits a month. Intern is $250 a month billed annually ($280 monthly) for 10,000 credits, about 500 leads contacted a month, with larger levels at $300 and $400. Employee is $600 ($660 monthly) for 25,000 credits, about 1,250 leads, up to $1,000 billed annually. Most campaigns use about 20 credits per prospect, 30 for cold campaigns with phone numbers. Team (about 2,500 leads a month), Scale and Enterprise go through sales.

Best for: small teams that want one managed outbound agent with a contact database inside.

6. AiSDR

AiSDR's agent sends email through Gmail or Outlook, sends LinkedIn connection requests, messages and voice notes, can add AI call steps through an Aircall dialer, picks leads from a 300M+ database and answers replies on its own or in a co-pilot mode a person reviews.

Price (checked October 30, 2026): $1.50 for each person contacted, charged daily, with no subscription; campaigns start from $3. Team plans for 1,000+ people a month are priced on volume, at up to 40% less per contact. A fully managed service is $2,500 a month, a managed campaign $149 and warmed-up mailboxes $33 each. AiSDR's pricing reference was last updated October 15, 2026.

Best for: founders and small teams who want to pay per person reached, with no subscription.

7. Salesforge Agent Frank

Agent Frank is the AI SDR inside Salesforge's cold email platform. It prospects from a 500M+ contact search engine, writes and sends over email and LinkedIn in 20+ languages, books by sending your calendar link or asking for the prospect's, and runs in Auto-Pilot or in Co-Pilot, where it asks for your review before sending.

Price (checked October 30, 2026): $499 a month billed annually or $599 billed quarterly for 1,000 active contacts, which Salesforge's FAQ puts at roughly 2,000 to 2,500 new leads a month and its pricing card at $0.25 a contact. Frank is only available after a demo, with no free trial. Email infrastructure is an add-on, or you connect your own mailboxes.

Best for: teams that want email and LinkedIn outreach at the lowest published price per contact.

8. Reply.io (Jason)

Jason is the AI SDR inside Reply.io's sales engagement platform. It finds prospects in 1 billion B2B contacts, writes across email and LinkedIn, answers replies and books meetings.

Price (checked October 30, 2026): AI SDR Starter is $500 a month billed annually ($800 monthly) for 1,000 active contacts and 2 LinkedIn accounts. AI SDR Growth is $1,500 a month billed annually ($2,500 monthly) for 5,000 contacts, and Enterprise is priced on request. Source: Reply.io's plain-text pricing reference, as its pricing page blocked automated reads.

Best for: teams that already sequence in Reply.io and want an agent on the same contacts.

9. Amplemarket Duo

Amplemarket sells contact data, multichannel sequences and its Duo AI in one contract. Duo Copilot comes with every plan, Duo Voice sends AI voice messages from Growth, and Duo Inbox drafts a reply to every prospect email on Elite.

Price (checked October 30, 2026): Startup is $600 a month on an annual term for 2 users, with 27,000 contacts plus 13,500 email credits and 600 phone credits per user a year. Growth (4 users) and Elite (10 users) are priced on request. Every plan includes a free trial.

Best for: teams of 2 to 10 reps that want data, sequences and AI from one vendor.

10. Apollo

Apollo builds its AI into its contact database (240M contacts) and its sequencer. Its AI Assistant pulls lead lists from plain language, writes outreach and triggers follow-ups, and Apollo's agents run in the background on its higher plans. A verified email costs 1 credit and a phone number 8.

Price (read October 16, 2026): Free; Basic $49 a seat a month billed annually ($65 monthly); Professional $79 ($99). On October 30, 2026 Apollo's pricing page listed Free, Basic, Professional and Custom plans and drew its prices in the browser, so the October 16 figures stand.

Best for: teams that want data, sequences and AI in one per-seat tool and will write their own playbook.

11. Regie.ai (RegieGO)

RegieGO is Regie.ai's agentic sales workspace for reps who fill their own pipeline. It researches each account for a reason to reach out, enriches contacts, drafts the messages, sends from your own Gmail or Outlook and adds a power dialer from Pro.

Price (checked October 30, 2026): Free gives each person 250 one-time credits. Pro is $49 a month ($41 billed annually) with 5,000 credits a month; Team is $150 a seat ($125 annually) with 15,000 credits a seat and a two-seat minimum.

Best for: individual reps and small teams who want research, drafts and calling in one low-cost seat.

12. Qualified Piper

Piper is an inbound AI SDR. It talks to website visitors over video, voice or chat, follows up with inbound leads by email and books meetings while interest is high. Qualified is now a Salesforce company.

Price (checked October 30, 2026): no published price. Premier, Enterprise and Ultimate all end in "Contact us". Every plan includes the Piper agent and meeting booking; agent handoff starts on Enterprise.

Best for: B2B companies with real website traffic whose inbound leads wait too long for an answer.

13. Breakout

Breakout's inbound AI SDR works your website: it answers product questions, qualifies visitors against your ICP and books the meeting before they leave the page. Its outbound agent follows up over email and LinkedIn through the sequencers you already run, triggered by site signals such as pricing-page visits plus 700+ third-party signals.

Price (checked October 30, 2026): Signals, which identifies website visitors without the AI SDR, starts at $500 a month. Growth adds the Inbound AI SDR from $2,000 a month with 12 seats. Enterprise is priced on request.

Best for: B2B companies with real website traffic that want an inbound agent and signal-led follow-up from one vendor.

14. Aircall AI Voice Agent

Aircall, which sells business phone plans, also sells AI Voice Agents. They handle inbound and outbound calls, SMS and WhatsApp, qualify the lead, update the CRM and book meetings during or after the call.

Price (checked October 30, 2026): $0.49 a minute pay as you go up to 2,500 minutes, then $0.39, or bundles from $175 for 500 minutes a month, with a $100 a month minimum for the standalone agent. Every customer gets 50 free minutes a month and 100 at sign-up. AI-voice calls to residential and mobile numbers need the called person's prior express consent under the FCC's 2024 ruling.

Best for: teams that already run their phones on Aircall and want a voice agent on new inbound leads.

15. Relevance AI BDR agent

Relevance AI is a platform for building AI agents, and its BDR agent is a ready-made multi-agent system you customize to your playbook. It researches prospects across LinkedIn, CRM data, web search and enrichment services, writes the outreach, handles replies and books meetings.

Price (checked October 30, 2026): no published price. The pricing page lists one Enterprise plan with a "Talk to sales" button.

Best for: operations teams that want to build and tune their own agent on a platform.

Also worth a look

Two more that sit outside the 15 above.

• Topo is an outbound sales platform with an AI agent built in that works next to your reps: it finds in-market buyers, personalizes outreach at scale and books meetings. You can try it free.
• Landbase builds the list an AI SDR works from. You describe the audience in plain language, and it searches 300M+ contacts, scores accounts against your ICP and returns verified emails and phone numbers.

How to choose an AI SDR tool

Seven checks decide whether an AI SDR books meetings or burns a domain. Ask each vendor for the answer in writing. If you want software that helps a rep and waits for approval on every step, compare AI sales assistants first.

1. Which steps it runs alone. List building, research, writing, sending, replies and booking. Ask which wait for a person by default.
2. Where the contact data comes from. A built-in database (Artisan, AiSDR, Salesforge, 11x, Reply.io, Apollo), providers the agent calls (HubSpot) or your own CRM (Agentforce). Run 200 of your own contacts through it and count bounces before the first campaign.
3. Approval controls. A review mode, tone and call-to-action locks, escalation rules and a do-not-contact list the agent cannot override.
4. Whose mailboxes send. Salesforge sells email infrastructure as an add-on and AiSDR sells warmed-up mailboxes at $33. Never send agent volume from your main domain.
5. Channels and consent. Email and LinkedIn are common; AI voice calls carry consent rules (see below).
6. CRM fit. An agent inside the CRM (HubSpot, Salesforce) or a sync that writes every touch and reply back to the record.
7. Contract and unit price. Pay as you go (AiSDR, Aircall), monthly (Artisan, Regie.ai, Reply.io), quarterly (Salesforge) or annual (11x, Amplemarket). Compare on price per contact, then after a month on price per meeting held.

See pricing

How much does an AI SDR cost?

Published AI SDR prices start at $49 a month (Regie.ai Pro, one rep) and run to $3,750 a month for 11x's Alice Growth and $5,333 for its Julian Voice, both billed annually. Clu, our product, is $49 a seat a month on Starter, and its agents start on Pro at $89 a seat ($67 billed annually), with 1 credit per verified work email and 10 per phone number. Unit prices run $0.25 a contact (Salesforge's Agent Frank), $1 a lead (HubSpot), $1.50 a person (AiSDR) and $0.10 an action (Agentforce). Per contact, on the vendors' own volume figures, checked October 30, 2026:

Three costs sit outside the sticker price: sending infrastructure (mailboxes and domains), the CRM seats HubSpot's and Salesforce's agents need underneath, and the review time someone spends reading replies in the first month. For medians and cost-per-meeting math across the category, see AI SDR pricing. For the cost of an AI SDR against a hire, see the AI BDR guide.

Are AI SDRs illegal?

No. Using AI to research prospects and write or send B2B outreach is legal in the United States, and the outreach follows the same rules a person's would, plus one rule aimed at AI voices. This is a summary of primary sources, not legal advice.

• Email. The CAN-SPAM Act covers business email: the FTC states that "the law makes no exception for business-to-business email." Each message needs accurate headers, an honest subject line, identification as an ad, a valid postal address and a working opt-out honored within 10 business days, and you answer for what a vendor sends on your behalf.
• AI voice calls. On February 8, 2024 the FCC ruled that calls made with AI-generated voices are "artificial" under the Telephone Consumer Protection Act, so calls to residential and mobile numbers need prior express consent, and written consent for telemarketing.
• Bots that hide what they are. California's Business and Professions Code section 17941 makes it unlawful to use a bot to mislead a person in California about its artificial identity to drive a sale. A clear disclosure avoids liability.
• Canada. CASL bans commercial electronic messages sent without consent, express or implied, and requires sender identification and an unsubscribe in each one.

Before an agent sends, put four controls in place: authenticated sending domains with an unsubscribe in every message, a suppression list the agent cannot override, consent before any AI voice call, and a clear statement of who is writing. For your own markets, ask counsel.

How to run a 30-day AI SDR trial

1. Pick one segment and one offer. Write the ICP, the exclusions and the one reason a buyer should reply.
2. Keep a control group. Half the segment to the agent, half to your current motion, over the same weeks.
3. Set guardrails before the first send. Approve the first 100 messages, cap daily sends per mailbox, load a do-not-contact list and set a spend cap.
4. Send from separate, authenticated domains, with SPF, DKIM, DMARC and one-click unsubscribe.
5. Track five numbers a week, each per 1,000 contacts: bounce rate, spam complaints (Gmail's line is 0.10%), positive replies, meetings booked and meetings held.
6. Decide on cost per meeting held, against the control group.

Trial terms checked October 30, 2026: Artisan has a Free plan with 300 credits a month, AiSDR's pay-as-you-go plan has no subscription, Amplemarket includes a free trial on every plan and Regie.ai has a free plan with 250 one-time credits a person. Salesforge offers no free trial for Agent Frank.

FAQ

What does AI SDR stand for?

AI SDR stands for artificial intelligence sales development representative. It names software that does an SDR's prospecting work on its own: finding people who fit the ICP, researching them, writing and sending outreach, answering replies and booking meetings. Vendors also sell the same products as AI BDRs or AI sales agents; AI sales agents explained sorts them by type.

Do AI SDRs actually work?

For research and first-touch writing at volume, yes; for fully autonomous outbound, results vary by list and market. Salesforce, which sells two AI SDRs, says on its own guide that today's AI SDRs are "better suited to tackling inbound leads." Judge any tool on meetings held per 1,000 contacts, bounce rate and spam complaints over a month.

Is AI replacing SDRs?

Not as a role in 2026. AI takes the list, research and writing tasks, and live calls, objections and buying-committee judgment stay with people. Regie.ai, which sells AI to sales teams, reports SDR seats down 22.7% and AE seats up 10.8% across eight quarters of Sales Navigator headcount in its panel: fewer people prospecting, more people closing.

What is the difference between inbound and outbound AI SDR tools?

Outbound AI SDRs start the conversation: they find people who never contacted you, write to them and follow up. Inbound AI SDRs answer people who came to you, on the website, by email or by phone, then qualify and book. 11x sells one of each (Alice outbound, Julian inbound), and Salesforce sells Agentforce SDR for outbound and Piper for inbound.

Can an AI SDR make phone calls?

Some can. 11x sells Julian as a phone agent and lists consented outbound calling for Alice, Aircall's voice agents take and make calls, and AiSDR adds call steps through an Aircall dialer. Calls with AI-generated voices need the called party's prior express consent under the FCC's 2024 ruling.

Will CRM be replaced by AI?

No. The CRM stays the system of record, and agents now work inside it: HubSpot's Prospecting Agent researches and drafts in HubSpot, and Agentforce works on Salesforce data. An AI SDR outside the CRM needs a sync that writes every touch back to the record.

What is the difference between an AI SDR and an AI BDR?

The labels name the same products, and vendors pick whichever term their buyers search for. Where companies split the roles, SDRs often work inbound leads and BDRs prospect outbound. The AI BDR guide sorts the tools by BDR job (inbound qualification, meeting booking, account research), the AI sales tools guide covers the rest of the stack, and GTM engineering covers who wires these agents together.

Sources