Which AI SDR Should Run Your Outbound? 9 Platforms Ranked

Outbound is the hardest job to hand to an AI SDR. Every first touch goes to someone who has never heard of you, so the AI needs verified contacts across the buying group, a reason to reach out now and follow-up that keeps going when reps get busy. ZoomInfo is one of the best places to run outbound AI SDR agents, with Agent Teams running complete outbound plays for you, with no need to babysit them.

Below, we compare nine AI SDR platforms on their outbound agents, data, channels and pricing, then cover the data an AI SDR needs, account-based outbound, deliverability and how AI SDRs stack up against an outbound agency. Outbound is only one part of what AI SDR tools do, so this list focuses on the platforms that handle it best.

The Six Outbound Jobs an AI SDR Should Run

An AI SDR for outbound is software that finds the right accounts, researches them, reaches the right people and follows up until a rep can take over. Most platforms automate one or two of those steps. The strongest run the full sequence on verified data and write every step back to the CRM.

1. Targeting. The AI builds a list from your ideal customer profile and watches for buying signals such as an intent spike, a funding round or a new executive.

2. Account research. It pulls company news, priorities and tech stack into a brief for each account.

3. Buying-group mapping. It identifies every stakeholder who influences the deal and maps the buying committee for each account.

4. Outreach. It writes and sends personalized emails, LinkedIn messages and call tasks inside sales email sequences that adapt to how prospects respond.

5. Follow-up. It keeps working accounts that go quiet, handles replies and objections, and picks the thread back up when a new signal arrives.

6. Handoff. It runs lead qualification on replies, passes interested prospects to the right rep with the full context and logs every touch in the CRM.

When those stages live in separate tools, a rep still stitches the motion together. That gap is why outbound teams are moving toward AI sales agents that run complete plays.

How We Evaluated These AI SDR Platforms

We scored each platform against seven criteria that decide whether outbound turns into pipeline, using vendor documentation, pricing pages and G2 reviews:

• Agent depth. Which outbound jobs do the platform's agents own, from research to follow-up, and how much runs without a rep?

• Verified data and buying-group coverage. Does the platform reach the right people, with verified emails and direct dials, across the whole buying group?

• Signal-based targeting. Do intent signals, hiring, funding and job-change data decide who gets outreach and when?

• Account research depth. Does each touch draw on real account context, or only on a name and a title?

• Channels and deliverability. Can it run email, phone and LinkedIn while protecting your sending domains?

• CRM write-back and handoff. Does every step land in Salesforce or HubSpot, and does the rep who takes the meeting get the full picture?

Governance and cost visibility. Can you monitor what the AI does, control who uses it and see the cost before it runs?

AI SDR Platforms for Outbound Compared

1. ZoomInfo

G2 rating: 4.5/5

ZoomInfo is an all-in-one AI GTM Platform and one of the best places for sales, marketing and RevOps to run agentic workflows, outbound included. It's why over half the Fortune 500 already trust ZoomInfo to run GTM.

Its agentic capabilities sit on three layers.

1. Data is the foundation, with 500M contacts and 100M companies, including 135M+ verified phone numbers, 120M+ direct dials and 200M+ verified business emails, kept current by 300+ human researchers with up to 95% accuracy on first-party data.

2. That data is structured as the GTM Context Graph, ZoomInfo's context layer for AI agents, which processes 1.5B+ data points daily and fuses it with your CRM records, conversation intelligence and behavioral signals, so every outbound agent knows who to contact across the buying group and why the account matters now.

3. Agent Orchestration is the execution layer, where AI agents read that context, act on it and write the results back. Universal Access is how teams reach it, through GTM Workspace for sellers, GTM Studio for RevOps, marketers and GTM engineers, and GTM.AI as the core route for any tool or agent.

Run whole outbound plays with Agent Teams

At the heart of our execution layer is Agent Teams. Give your agents an outcome, not a task, such as opening a target account, and specialist agents carry it from signal to briefed rep while a supervisor agent checks each step against your rules. An intent spike, a funding round or a champion's job change opens or resumes a play, and Agent Teams works natively with Salesforce, HubSpot, Outreach, Salesloft, Slack and Gmail, so outbound runs in the sequences reps already trust.

Every play comes with governance guardrails built in:

• Every play is monitored, so mistakes are caught and fixed before they affect the business.

• AI credit usage is estimated before a play starts and tracked for each Agent Team.

• Organization-wide admin dashboards and role-based access decide who builds and runs Agent Teams.

• Organization-level knowledge bases keep outbound messaging aligned with your ICP, brand and SOPs.

• Real-time evaluations check each step, so a play runs the same way every time.

• Every step is written back to Salesforce or HubSpot, with every decision recorded in one audit trail.

• ZoomInfo maintains SOC 2 controls and is ISO 27001 and ISO 27701 certified.

Build your own outbound agents through GTM.AI

GTM.AI is ZoomInfo's headless option. Its API, CLI and MCP server let any tool or AI agent, including Claude, ChatGPT and custom agents, connect to verified B2B intelligence and run whole GTM motions from wherever your team already works. Developers and GTM engineers build on the data directly, and teams that don't code start from pre-built workflows, templates and prompts.

Before a first touch, your agents can call ZoomInfo's Context Agents. Account Research and Contact Research return a brief that combines ZoomInfo data with your CRM and past conversations, and the Signals agent surfaces intent, news and scoops that give outreach a reason to land now. GTM Optimized Skills such as Build List and Decision Process Mapper turn list building and buying-group mapping into one call, and Agent Teams plays can run headless through GTM.AI too.

Agentic capabilities:

• Outbound Prospecting. Researches a target account, builds a structured list of the key buying-group contacts and writes a complete account brief.

• Champion activation. Spots a past buyer's move to a target account, rebuilds their role in the original deal, drafts outreach grounded in that relationship and briefs the account owner in Slack. It's the play behind champion tracking, triggered by job changes.

• Closed-won competitor acceleration. When a deal closes, finds 10 competitors of the new customer, checks whether they're already in your CRM and emails the relevant rep.

• Signal triggers. Intent, technographic, hiring and job-change signals open or resume a play.

• Native actions. Enrolls prospects in Salesloft or Outreach sequences, sends Gmail and Slack messages and writes every step back to Salesforce or HubSpot.

• GTM.AI Context Agents. Account Research, Contact Research, Signals and Conversation Intelligence agents your own outbound agents can call.

• Build List and Decision Process Mapper skills. Target lists and buying-group maps from one call.

• GTM.AI API, CLI and MCP. Works with Claude Code, Codex, Perplexity, Vertex AI and Amazon Quick, with MCP available through partners including Anthropic's Claude and Google.

Pros:

• An Agent Team can take on a complete outbound motion, from signal to briefed rep

• Works from each account's current state and context, so outreach never runs on signals from months ago

• No babysitting needed, with real-time evaluations on every step

• Connects to your apps, your CRM and the sequences reps already use

Cons:

• AI credits need scoping against your outbound volume

• Built for teams more than solo founders, though GTM.AI is a good option for them too

Best for: Mid-market and enterprise outbound teams on Salesforce or HubSpot that want agents to run complete outbound plays on verified data. GTM engineers can build their own outbound agents on the same data through GTM.AI.

Pricing: Flexible packages built around your needs. Agent Teams is part of GTM Studio with no new SKU or contract, and GTM.AI is free to start, with consumption-based credits. You can connect your first agent from Claude, Codex or your own code.

"We use it to find mobile numbers, direct emails, job change signals, anything that helps us break through the noise."

Kevin Neely, VP of Brand Partnerships, Levanta

More than10xROI with ZoomInfo

Read case study

2. Salesloft

G2 rating: 4.5/5

Salesloft is a sales engagement platform that merged with Clari, so the combined Clari + Salesloft platform now spans engagement, conversation intelligence and forecasting.

Its outbound agents work around Cadence, the sequencing tool many SDR teams already run. The Account Research Agent condenses buyer signals, company data and CRM context into one view with suggested messaging, and the Buyer Identification Agent finds verified decision-makers inside and outside the CRM, with a ZoomInfo integration behind it.

AI Email Steps write a personalized email each time a cadence step runs, while Rhythm orders each rep's daily actions by buying signal. For SDR team leads, call recordings are analyzed for coaching moments and a Sales Strategist agent recommends coaching based on winning behaviors. Salesloft is also one of the sales engagement platforms Agent Teams works with natively, so teams can run plays in ZoomInfo and keep execution in Salesloft cadences.

Agentic capabilities:

• Account Research Agent. Buyer signals, company data and CRM context in one view, with suggested messaging.

• Person Research Agent. A summary of each prospect before the rep reaches out.

• Buyer Identification Agent. Suggests verified decision-makers to add, inside or outside the CRM.

• AI Email Steps. Writes a personalized email every time a cadence step runs.

• Rhythm. Orders each rep's daily actions by buying signal.

• Sales Strategist agent. Recommends coaching based on winning behaviors.

• MCP server. Gives AI assistants access to pipeline, account and call data.

Pros:

• Rhythm keeps reps working the strongest signals first

• Coaching insights and call analysis in the same platform

• Strong cadence governance for large SDR teams

Cons:

• AI is mostly assistive, so reps still execute outreach

• No own B2B contact data, so contacts come from the CRM or partners

• No public pricing

Best for: Enterprise SDR teams that want AI to prioritize, research and draft while reps run structured cadences.

Pricing: Custom.

Weighing Salesloft against another engagement platform? See how it compares in Groove vs. Salesloft.

3. Amplemarket

G2 rating: 4.6/5

Amplemarket is an outbound platform that bundles B2B data, multichannel sequences, a dialer and deliverability tools around an AI copilot called Duo. Duo Copilot captures buying signals across your accounts, builds a model of likely buyers from external and CRM data and suggests one-to-one sequences. With instant autopilot switched on, it enrolls leads the moment a qualifying signal fires.

Duo Inbox drafts replies to email and social messages from scenarios you define, such as pricing or competitor questions, and nothing sends until a rep reviews it. Amplemarket's other outbound strength is deliverability, with a Domain Health Center, Deliverability Booster, mailbox recommendations and a spam checker. An MCP connection lets reps prospect and take action from Claude or ChatGPT.

Agentic capabilities:

• Duo Copilot. Signal discovery, buyer modeling and suggested one-to-one sequences.

• Instant autopilot. Enrolls leads into sequences as soon as a qualifying signal fires.

• Duo Copywriter. Writes tailored first-touch messages.

• Duo Inbox. Drafts replies from your scenarios, with sources to check, for reps to review and send.

• Duo Voice. Voice notes in your own voice at scale.

• Intent signals and job change alerts. Flag the accounts and people worth reaching now.

• Deliverability tools. Domain Health Center, Deliverability Booster, mailbox recommendations and a spam checker.

Pros:

• Data, signals and sequencing in one tool

• Strong deliverability tooling

• Reps keep control over replies and messaging

Cons:

• Annual terms on the Startup plan

• Duo Inbox drafts replies, so reps still send each one

• Duo Voice and Duo Inbox sit on higher tiers

Best for: Growth-stage outbound teams that want AI-assisted multichannel outreach in one platform.

Pricing: Startup costs $600 a month on an annual term for two users, with Growth and Elite priced on request. Every plan includes a free trial.

Comparing it directly?

4. Unify

G2 rating: 4.7/5

Unify is a signal-based outbound platform that combines AI agents, B2B data, signals and sequencing, so reps can run outbound from a single chat. Its data draws on 40+ sources covering 1.1 billion people and 65 million companies, with an email and phone waterfall and real-time email validation.

Unify's agents decide who gets outreach. You set up a research agent with the questions that matter to your ICP, such as headcount or a current tool, and a Play uses its answers to route qualifying accounts into prospecting. Signals such as web search, hiring, funding, job changes, website visits and tech stack start those Plays automatically, and each sequence touch draws on the signal and the agent's research. It's a close fit for teams moving from list-based campaigns to intent data for sales.

Agentic capabilities:

• Research agents. Answer your questions about a company or person as true or false, a number, a selection or text, with guidance you write.

• Qualification action. Routes accounts that meet your criteria into prospecting inside a Play.

• Plays. Run playbooks automatically when a signal fires, with logs that show each agent answer.

• Signals. Web search, hiring, funding, job changes, website visits and tech stack.

• Chat agent. Builds lists and runs prospecting from one chat.

• AI copywriting and deliverability. Multichannel sequences, with mailbox warmup and rotation on higher tiers.

Pros:

• Free plan and low per-seat entry price

• Signal-triggered automation built in

• Fast list building from a single chat

Cons:

• Website intent, signal-triggered automations and the power dialer sit on the Business plan

• Salesforce and HubSpot sync is read-only on Pro and read-write only on Business

• Smaller review base than older platforms

Best for: Early-stage and growth teams that want signal-based outbound without a heavy setup.

Pricing: Free for up to three seats, then Base at $20 and Pro at $60 per seat per month on monthly billing. Business is custom and billed annually.

For a closer look at how it performs, read our full Unify review.

5. lemlist

G2 rating: 4.6/5

lemlist is a multichannel outreach platform with a 650M+ lead database, email and phone finders and AI agents coordinated by lemAgent. Describe a campaign in plain language, including the goal, ICP, angle, channels and timing, and lemAgent searches the database and builds a multichannel campaign with sequencing and branching. It also reviews live campaigns, flags the steps that hurt performance and suggests rewrites.

For outbound, lemlist suits teams that want personalized cold outreach at volume without a large stack. Its Multichannel plan runs email, LinkedIn, SMS and calls in one sequence, with WhatsApp as an add-on. AI variables write intro lines from industry, title and recent activity, Smart Messaging clones your voice for audio notes, and lemwarm and a deliverability hub come with every plan.

Agentic capabilities:

• lemAgent. Builds multichannel campaigns from a plain-language brief and flags weak steps in live ones.

• Intent signal agents. Combine job postings, tech changes, funding, hiring and web behavior to flag in-market accounts.

• Waterfall enrichment. Finds and verifies emails and phone numbers across several providers.

• AI variables and Smart Messaging. Personalized intro lines and cloned-voice audio notes.

• lemwarm. Inbox warmup and a deliverability score on every plan.

• MCP and CLI. Run lemlist from AI assistants and scripts.

Pros:

• Wide channel coverage in one sequence

• Deliverability tooling included on every plan

• Transparent self-serve pricing

Cons:

• Buying intent signals and enrichment credits are paid add-ons

• Lighter account research than platforms built on verified data

• SSO and custom roles sit on Enterprise

Best for: SMB and mid-market teams running multichannel cold outreach at volume.

Pricing: The Email plan costs $55 a month and Multichannel $87 a month on yearly billing, or $69 and $109 billed monthly, with Enterprise priced on request.

Comparing multichannel sequencers?

6. Smartlead

G2 rating: 4.5/5

Smartlead is a cold email platform built for scale, with unlimited mailboxes and warmup on every plan, mailbox rotation and a SmartProspect database of verified contacts. Its AI layer, SmartAgents, runs across the outbound workflow on top of Smartlead's sequencing engine. Prospecting agents search SmartProspect by ICP and score leads by fit and signal strength, and personalization agents write each email from the prospect's company, role and recent news.

Once campaigns run, AI categorization sorts every reply as interested, not interested, out of office, referral, question or meeting request and routes it. The Reply Agent then drafts a response toward a goal you choose, such as booking a meeting or re-engaging a lead, and a rep reviews each draft before it sends. Agencies and teams running many domains can add SmartDelivery for spam tests and blacklist monitoring, plus pre-warmed mailboxes.

Agentic capabilities:

• SmartAgents. Prospecting and personalization agents that run across campaigns, included from the Base plan.

• Reply Agent. Drafts replies toward Book Meeting, Re-engage, Qualify or Close goals for a rep to review.

• AI reply categorization. Sorts every reply into six categories and routes it.

• Qualification agent. Scores leads on engagement and flags the strongest for human follow-up in the Master Inbox.

• SmartCoach. Real-time guidance on cold calls made through SmartDialer.

• SmartDelivery. Spam tests and blacklist monitoring for your sending domains.

• API, webhooks and MCP server. Run Smartlead from AI assistants and your own scripts.

Pros:

• Low entry price with unlimited mailboxes

• Built for agencies, with client workspaces and whitelabeling

• SmartAgents included on every plan

Cons:

• Reply Agent drafts replies, so reps still send each one

• Email-first, with LinkedIn steps run through partner tools

• Deliverability testing, mailboxes and dialer credits cost extra

Best for: Agencies and outbound teams running high-volume cold email across many mailboxes.

Pricing: Base at $39 a month, Pro at $94, Unlimited Smart at $174 and Unlimited Prime at $379 on monthly billing, with 17% off annual plans. SmartDelivery starts at $49 a month, and mailboxes and dialer credits are priced separately.

7. Nooks

G2 rating: 4.8/5

Nooks is an AI sales platform built around an AI Dialer for phone-led outbound. The dialer handles multi-line and power dialing with answer detection, number rotation to protect against spam labels, voicemail drops and live call coaching, so reps spend their time on live conversations.

Around the dialer sit AI Sequencing across calls, email, SMS and social, buying signals such as recent funding, hiring and competitor renewals, ranked by a scoring model retrained on call outcomes, and an AI account assistant. For SDR team leads, Nooks stands out on coaching, with AI roleplay, call scoring, automated summaries and live battlecards that help new reps ramp faster. Mutual customers can connect ZoomInfo through a native connector, so the Nooks and ZoomInfo GTM.AI integration puts verified phone numbers, firmographics and intent next to every dial.

Agentic capabilities:

• AI Dialer. Multi-line and power dialing with answer detection, number rotation and voicemail drops.

• AI Sequencing. Calls, email, SMS and social touches in one sequence.

• Buying signals. Funding, hiring, competitor renewal and third-party intent signals, ranked by a scoring model retrained on call outcomes.

• AI account assistant. Account research ready before each dial.

• AI Coaching. Roleplay, call scoring, live battlecards and automated summaries.

• ZoomInfo connector. Verified phone numbers and intent beside every dial.

Pros:

• Built for teams where the phone drives outbound

• Coaching and ramp tools for SDR managers

• Highest G2 rating on this list

Cons:

• No public pricing

• Contact data comes through partners or your own subscriptions

• Less suited to email-only outbound

Best for: SDR teams that run phone-led outbound and want AI coaching for reps.

Pricing: Custom quote.

8. Regie.ai

G2 rating: 4.4/5

Regie.ai is an AI sales assistant for sellers built around RegieGO, an agentic sales workspace. You prompt it once, and its AI agents handle sourcing, ranking, call prep and follow-ups, while Relevant Messaging learns your voice and pitch and finds a why-now trigger for each account before writing.

Always-On Pipeline tracks those why-now signals, recommends and enriches contacts and runs plays daily, and Channel Orchestration lines up phone, email and social touches on one timeline. For outbound, Regie's strength is its parallel power dialer, which places calls with the research already done. RegieGO includes a built-in CRM, and HubSpot, Salesforce or Monday CRM can connect, one CRM per workspace.

Agentic capabilities:

• AI Agents. Source, rank, prep calls and follow up from one prompt.

• Relevant Messaging. Writes in your voice from a why-now trigger for each account.

• Always-On Pipeline. Tracks signals, enriches contacts and runs plays every day.

• Channel Orchestration. Phone, email and social steps on one timeline.

• Power Dialer. Parallel dialing with research done for each contact.

Pros:

• Free plan with no card required

• Self-serve plans with no contract on Pro and Team

• Dialing and research in one workspace

Cons:

• One CRM per workspace

• Credits reset each billing period and don't roll over

• Team plan has a two-seat minimum

Best for: Sellers and small teams that want self-serve AI prospecting with built-in dialing.

Pricing: Free with 250 one-time credits, then Pro at $41 a month and Team at $125 per seat per month, both billed annually, with custom Enterprise pricing.

9. Relevance AI

G2 rating: 4.3/5

Relevance AI is a platform for building an AI workforce of agents, and its sales agent, Bosh, works as an AI BDR for outbound and inbound leads. Bosh researches each prospect across LinkedIn, CRM data, product usage, company websites, Google Search, Glassdoor, G2 and business registries, then sends personalized outreach, handles replies and objections and books meetings around the clock.

Relevance AI suits teams with a GTM engineer who want to train an agent on their own sales playbook and connect it to their own data and tools. Enterprise adds calling and meeting agents, agent evaluations, A/B testing, SSO, role-based access and audit logs across 2,000+ integrations.

Agentic capabilities:

• Bosh. An AI BDR trained on your sales playbook.

• Multi-source research. LinkedIn, CRM, product usage, reviews and business registries.

• Reply and objection handling. Answers questions from what it knows about your business.

• Meeting booking. Books meetings for outbound leads, inbound leads, product-qualified leads and database lists.

• Agent evaluations and A/B testing. Available on Enterprise.

Pros:

• Maximum flexibility to build your own AI SDR

• One platform for many agent types beyond sales

• Enterprise security with SSO, role-based access and audit logs

Cons:

• Needs configuration and ongoing tuning

• Data quality depends on the sources you connect

• Enterprise pricing isn't published

Best for: Teams with GTM engineering resources that want to build a custom AI BDR.

Pricing: Free plan to start, with custom Enterprise pricing.

Want more AI reps built for outbound? Our AI BDR software roundup compares the leading options.

How Agent Teams Runs an Outbound Play From Signal to Meeting

Most platforms above automate part of the outbound motion. Agent Teams works as an orchestration layer, the same idea behind revenue action orchestration tools, coordinating specialist agents across every step of the play. Here's how one outbound motion compares.

The last two rows matter most for outbound. When a prospect from an outbound play fills in a form or books a demo, the Inbound Lead Activation template picks it up, so every qualified buyer reaches the right rep with the full picture. That's a step beyond basic lead routing, and it keeps the same verified context from first touch to meeting.

Teams can deploy any template as-is, customize it in plain language or code, or describe a new play and let Agent Teams generate the workflow. Agent Teams is built on technology from DoubleO.ai, now part of ZoomInfo, and runs inside GTM Studio with no new SKU or contract, or headless through GTM.AI. It uses consumption-based AI Credits with an estimate shown before each play activates, and admins get monitoring, dashboards and role-based access across every Agent Team.

What Data Does an AI SDR Need for Outbound?

An AI SDR is only as good as the data underneath it. Outbound raises the stakes, because the AI reaches people who have never heard from you, at a volume no rep could match. Wrong contacts and stale titles turn into bounced emails, damaged domains and outreach that lands with the wrong person.

Whether you buy an AI SDR or build one, it needs five kinds of data:

• Verified contacts. Business emails and phone numbers checked often enough to keep up with B2B data decay.

• Firmographics and technographics. Company size, industry, revenue and technographics, so targeting matches your ICP.

• Buying-group data. Org charts and roles, so outreach reaches every stakeholder who influences the deal.

• Signals. Intent data, hiring, funding and job changes, so outreach starts when an account is in market.

• Your own context. CRM history, past calls and emails, pulled together in a context layer for AI agents so the AI knows what your team already knows.

Before you switch an AI SDR on, clean the CRM fields it will read and write, and use CRM data enrichment to fill gaps so the AI starts from complete records. Teams building their own AI SDR, for example on Claude or an internal agent, can connect it to ZoomInfo's verified data through GTM.AI's API, CLI or MCP.

How to Run Account-Based Outbound With an AI SDR

Account-based outbound to a defined list, say 200 or 500 target accounts, needs a different approach from high-volume cold email. Every account matters, so the AI has to go deep on each one.

Look for an AI SDR that can:

• Research each account in depth, pulling news, priorities, tech stack and recent activity into a brief

• Map the whole buying group and tailor messaging to each role

• Watch the full list for signals, such as an intent spike, a new executive or a champion's move, and start outreach when they fire

• Coordinate with marketing, so ads and outbound target the same accounts through your ABM software

• Hand off to account owners with context, because target accounts usually have an assigned rep

Agent Teams' Outbound Prospecting template is built for this. It researches each target account, builds the buying-group list and writes a complete account brief, and teams can run it on a recurring schedule against a ZoomInfo audience of their target accounts.

Which AI SDR Platform Fits Your Outbound Motion

The right platform depends on where your outbound motion stands today. These five situations cover most teams.

You're building your first outbound motion. Series A and B teams usually start with a free or low-cost platform such as Unify, Regie.ai or lemlist, then add verified data as volume grows. Keep the first motion narrow, with one ICP, one channel mix and a clear handoff to a founder or first AE, and get the outbound lead generation basics right before adding volume.

You're scaling outbound without adding reps. Look for a platform that automates prospecting, research and first touches across the whole list, with deliverability built in, so each rep spends more time on qualified conversations. Plenty of outbound sales software adds AI to one of those steps, so check how much each platform runs on its own.

You run a phone-led SDR team. An AI dialer with coaching, such as Nooks, or a parallel dialer inside your sequencer raises connect rates, provided the numbers are verified.

You're an enterprise team with established cadences. Keep Salesloft, Outreach or your current sales engagement platform for execution and add an orchestration layer such as Agent Teams for research, buying-group mapping and enrollment, so you don't rebuild sequences reps already trust.

You're building your own outbound agents. Connect them to ZoomInfo through GTM.AI, so agents in Claude, ChatGPT or your own stack work from verified contacts and governed plays, or use Relevance AI to configure an agent on your own sales process.

Whichever path you take, check that the platform writes back natively to Salesforce or HubSpot, so records stay current as the AI works.

How to Protect Deliverability When AI Runs Outbound

AI SDRs send more email, faster, so deliverability problems compound quickly. A bad list or a burned domain can stall outbound for weeks.

Protect your sending reputation with five habits:

• Separate sending domains. Send outbound from secondary domains so your main domain stays clean.

• Warm up new mailboxes. Ramp volume gradually before a campaign goes live, using built-in warmup or a dedicated warmup tool.

• Rotate mailboxes. Spread volume across several inboxes so no single mailbox hits its sending limit.

• Verify before you send. Bounces hurt reputation fastest, so validate addresses with email finder and verification tools or start from verified data.

• Watch the signals. Track bounce, spam complaint and reply rates per domain, and pause sequences that slip.

Amplemarket, Unify, lemlist and Smartlead build most of these into their platforms. Platforms that run on verified data reduce the risk at the source, because fewer bad addresses reach a sequence in the first place.

AI SDR vs. Outbound Agency

Teams that need more outbound pipeline without hiring usually weigh an AI SDR platform against an outbound agency or outsourced SDR companies.

Many teams use both, with an agency testing new markets while AI SDRs and in-house reps run core outbound.

How Much Does AI SDR Software Cost?

AI SDR software for outbound follows three pricing models:

• Per seat. Unify starts free, then $20 or $60 per seat a month, and Regie.ai's Team plan costs $125 per seat a month billed annually. Salesloft prices per seat on request.

• Platform fee. Smartlead starts at $39 a month, lemlist at $55 a month on yearly billing and Amplemarket at $600 a month on an annual term for two users.

• Custom or consumption. Nooks and Relevance AI scope pricing to your team. ZoomInfo offers flexible packages built around your needs, GTM.AI is free to start, with consumption-based credits, and Agent Teams shows a credit estimate before each play runs.

For teams under $1,000 a month, Unify, Regie.ai, lemlist, Smartlead and Amplemarket's Startup plan all fit the budget. Factor in data credits, add-on signals and mailboxes, which often cost extra.

Choose a Platform That Runs Outbound End to End

The right AI SDR platform depends on how your team runs outbound.

Salesloft's agents work inside cadences reps already run, Amplemarket's Duo and lemlist's lemAgent bundle data and deliverability with multichannel sequences, Smartlead's SmartAgents suit cold email at volume, Unify and Regie.ai make signal-based outbound accessible to smaller teams, Nooks leads on the phone and Relevance AI's Bosh suits teams that want to build their own agent. For agents that work beyond sales development, see our roundup of AI sales agent platforms.

Teams that want outbound to run as complete plays on verified data, inside the tools reps already use, should start with ZoomInfo Agent Teams. Teams building their own outbound agents in Claude, ChatGPT or their own stack can reach the same data and plays through GTM.AI.

Meet with a GTM expert to see Agent Teams run an outbound play on your own target accounts.

AI SDR for Outbound Sales FAQ

What is the best AI SDR platform for outbound sales?

ZoomInfo is one of the best places to run outbound AI SDR agents, with Agent Teams running complete outbound plays inside Salesforce or HubSpot on verified data. GTM.AI brings the same data and plays to outbound agents built in Claude, ChatGPT or your own code. Salesloft suits enterprise SDR teams, Amplemarket and lemlist suit multichannel outreach in one tool, Smartlead suits high-volume cold email, Unify and Regie.ai suit smaller teams, Nooks suits phone-led teams and Relevance AI suits teams building their own agent.

What parts of outbound can an AI SDR run end to end?

An AI SDR can build target lists, research accounts, map buying groups, send outreach across email, LinkedIn and phone, follow up and hand off interested prospects. Most tools automate one or two of those steps, while ZoomInfo Agent Teams runs the full play from signal to briefed rep and writes every step back to the CRM.

What features should I look for in an AI SDR for outbound?

Look for verified contacts and direct dials, buying-group coverage, signal-based targeting, deep account research, multichannel outreach with deliverability tools, native CRM write-back and governance over what the AI does and costs. SDR team leads should also check for coaching features such as call scoring and roleplay.

Can AI SDRs scale outbound without hiring more reps?

Yes. AI SDRs take on research, list building, first touches and follow-up, so each rep spends more time on qualified conversations. Results depend on the data underneath, and Agent Teams goes further by running whole outbound plays for every rep at once.

Which data is best for building an AI SDR?

Verified business emails and direct dials, buying-group and org chart data, intent and job-change signals and your CRM history. ZoomInfo covers 500M contacts and 100M companies, and teams building their own AI SDR can reach that data through GTM.AI's API, CLI and MCP.

Is an AI SDR good for account-based outbound to a target list?

Yes, if it researches each account in depth, maps the buying group and watches target accounts for signals. ZoomInfo's Outbound Prospecting template researches each target account, builds the buying-group list and writes a complete brief.

Which AI SDR tools work for LinkedIn and email together?

lemlist, Amplemarket, Regie.ai and Unify run LinkedIn and email steps in the same sequence, and Salesloft and Nooks add social touches alongside calls and email. Check each platform's LinkedIn limits, because LinkedIn restricts how much automation an account can run.

Should I use an AI SDR or an outbound agency?

An AI SDR suits teams that want outbound as an always-on, in-house capability with their own data, domains and plays. An agency suits teams that want a done-for-you program quickly, and many teams combine the two while they build internal outbound.

How much does AI SDR software for outbound cost?

Unify and Regie.ai offer free plans, Smartlead starts at $39 a month, Regie.ai's Pro plan costs $41 a month billed annually and lemlist starts at $55 a month on yearly billing. Amplemarket starts at $600 a month on an annual term, while Salesloft, Nooks and Relevance AI's Enterprise plan are priced on request. ZoomInfo offers flexible packages built around your needs, and GTM.AI is free to start, with consumption-based credits.

What is GTM.AI?

GTM.AI is the headless layer for ZoomInfo's agentic capabilities. Outbound agents built in Claude, ChatGPT or your own code connect to ZoomInfo's verified contacts, direct dials and buying signals through an API, CLI and MCP, and can run Agent Teams plays such as Outbound Prospecting headless. GTM.AI is free to start, with consumption-based credits.

What is ZoomInfo Agent Teams?

Agent Teams is ZoomInfo's multi-agent product for running complete GTM plays. For outbound, its Outbound Prospecting and champion activation plays research target accounts, map the buying group, draft outreach and enroll prospects in Salesloft or Outreach sequences, with every step written back to the CRM. It runs in GTM Studio with no new SKU, or headless through GTM.AI, on consumption-based AI Credits.