Finding new leads and booking meetings used to take hours every day.

Now, AI SDRs handle most of that work, researching prospects, writing personalized messages, following up, and even scheduling meetings automatically.

When choosing an AI SDR for your sales team, make sure it does more than just automate emails.

It should find the right leads, personalize every message, and book meetings that turn into revenue.

In this guide, I’ll show you the 7 best AI SDRs in 2025 that can replace your sales representatives.

You’ll learn what each one does, its pricing, and who it’s best for, so you can choose the right AI SDR to scale your outbound sales faster.

TL;DR – 7 AI SDR Agents for 2025

1. Zara by Stamina – AI SDR that finds leads, qualifies prospects, and books meetings automatically.
   
   

2. Ava by Artisan AI – AI sales rep that personalizes outreach and improves with every interaction.
   
   

3. Jason (Reply.io) – Multichannel SDR agent for email and LinkedIn communication.
   
   

4. Agent Frank (Salesforge) – AI SDR with deliverability, warm-up, and LinkedIn automation.
   
   

5. Alice (11x.ai) – 24/7 AI SDR that researches prospects and schedules demos.
   
   

6. Piper (Qualified.ai) – Inbound AI SDR that engages leads via chat, email, and video.
   
   

7. Chase (MeetChase) – Pay-for-results AI SDR that runs outbound campaigns and books meetings.
   
   

What is an AI SDR?

An AI SDR (Sales Development Representative) is a digital version of a sales rep powered by artificial intelligence.

It helps you find potential customers, send personalized messages, follow up, and book meetings.

Instead of spending hours on manual tasks like searching for leads or writing emails, an AI SDR can handle this work 24/7.

It learns from data, improves over time, and keeps your sales pipeline active without needing breaks, salaries, or training.

In simple terms, it does the same tasks a human SDR would, but faster, more consistently, and at scale, helping sales teams generate qualified leads.

How Does an AI SDR Work?

An AI SDR works by combining data, automation, and natural language tools to handle sales tasks automatically.

Here’s how it works step by step:

1. Finds leads: It searches the web, databases, and social platforms to find people or companies that match your target audience.
   
   

2. Research prospects: It gathers key details like job titles, company size, and recent updates to understand each lead better.
   
   

3. Writes messages: Using AI, it creates personalized emails or LinkedIn messages that sound natural and relevant.
   
   

4. Follows up: It sends reminders and follow-up messages automatically based on how leads respond.
   
   

5. Books meetings: When a lead shows interest, it schedules a meeting directly on your team’s calendar.

In short, an AI SDR automates the entire outreach process, from finding leads to booking meetings, while keeping your pipeline full 24/7.

How We Evaluated the 7 Best AI SDRs That Can Replace Your Sales Reps

To identify the best AI SDRs, the evaluation focused on how well each one automates sales tasks, personalizes outreach, and drives qualified meetings.

• Ease of setup and how quickly each AI SDR connects with CRMs, mailboxes, and existing sales workflows.
  
  

• Lead data accuracy, showing how effectively the AI SDR finds, verifies, and enriches new prospects.
  
  

• Message personalization, analyzing how each AI SDR adapts tone, timing, and content based on company data and buyer intent.
  
  

• Workflow automation measures how much of the prospecting, follow-up, and scheduling process the AI SDR can run independently.
  
  

• Deliverability management, including how each AI SDR handles warm-up, domain reputation, and inbox placement.
  
  

• Pricing and scalability, evaluating whether the AI SDR remains affordable and flexible for startups, agencies, or enterprise teams.
  
  

• Integration support, checking how smoothly the AI SDR works with CRMs and sales tools like Salesforce, HubSpot, and Slack.

Each AI SDR was rated on its ability to automate outreach, personalize communication, and create real sales opportunities.

7 AI SDR Agents That Can Replace Your Sales Reps: Quick Comparison

1. Zara by Stamina

Zara is the built-in AI SDR of Stamina, a full sales and marketing platform that combines CRM, outreach, deliverability, and automation.

She acts like a digital sales rep, researching, writing, sending, and following up, using real-time signals such as funding rounds, hiring updates, and website activity.

How Zara Replaces Sales Reps?

Zara replaces the daily manual work of a full SDR team.

Here’s how she handles the entire outbound process from start to finish:

1. Finds and qualifies leads using Stamina’s database of over 200 million verified contacts, enriched with firmographic, technographic, and intent data.

2. Zara researches every account by scanning funding rounds, job openings, and company case studies to find the right angle for personalization.
   
   

3. She writes complete email sequences automatically, generating personalized subject lines and body copy based on live data from the lead’s company.
   
   

4. Zara adjusts daily send limits dynamically based on sender health to maintain deliverability and prevent spam issues.
   
   

5. She syncs all activity inside Stamina’s CRM, including emails, texts, calls, and meetings, so your team can manage the full sales cycle in one place.
   
   

6. Lastly, she notifies the team instantly when a prospect replies or books a meeting, ensuring no warm lead is ever missed.

Zara handles everything from prospect research to follow-up automatically, turning hours of manual SDR work into a single, continuous workflow.

Pros of Zara by Stamina

• Using AI, Zara builds full outbound sequences within minutes, writing subject lines, email copy, and follow-ups autonomously. This saves SDRs hours of manual work while maintaining personalized, conversion-focused communication.
  
  

• Assisted-plan users get a dedicated GTM engineer who helps refine messaging and targeting for better campaign results.

Cons of Zara by Stamina

• Advanced analytics for multi-channel attribution are not available yet.

Stamina (Zara) Pricing

• Base: $397/month – 10,000 credits, automated setup, chat support.
  
  

• Assisted: $797/month – GTM manager, Slack support, strategy calls, 10,000 credits.

Over 1,000 companies in more than 50 countries use Zara by Stamina to find leads, personalize emails, and schedule more sales demos.

With AI-driven personalization, built-in deliverability tools, and an integrated CRM, Zara replaces the manual effort of traditional sales reps.

2. Agent Frank by Salesforge

Agent Frank is the built-in AI SDR of Salesforge, an all-in-one cold-outreach platform that combines AI, human workflows, and premium email infrastructure.

He acts as an autonomous sales rep who handles prospecting, writing, follow-ups, and booking meetings across both email and LinkedIn, so your team can focus on closing deals.

How Agent Frank Replaces Sales Reps?

Agent Frank automates almost every SDR task from onboarding to daily outreach. Here’s his exact workflow inside Salesforge:

1. Agent Frank becomes available only after a demo with the Salesforge team. The session helps you understand how he fits into your current process, and your dedicated Account Manager walks you through setup.

2. After the demo, your Account Manager creates a complimentary Salesforge account. You decide whether he runs on Auto-Pilot (fully autonomous) or Co-Pilot (you approve replies).

3. Just like training a new rep, you upload files, pitch decks, tone-of-voice guides, case studies, or documentation, so Frank learns about your product and messaging before outreach.

4. You can connect your own domains or use Salesforge’s in-house infrastructure:

• Infraforge (private email infrastructure) or Megaforge (multi-ESP premium setup).
  
  

• Warmforge automatically warms up mailboxes for 2 weeks to protect deliverability.

5. Once infrastructure is ready, you can upload contact lists or let Frank find new prospects continuously based on your ICP, job titles, industries, and locations.

6. Your Account Manager helps fine-tune Frank’s settings, language, tone, goal, availability, personalization sources, and preferred meeting-booking method (Calendly link, click-out, or reply back).

After warm-up, Frank begins processing leads 24/7, sending messages, following up, and booking meetings. 

You can monitor his performance live in your Salesforge dashboard, with help from your Account Manager whenever needed.

Pros of Agent Frank

• From prospecting and writing to booking meetings, Frank replaces manual SDR tasks inside one unified platform.
  
  

• Warmforge is included for free, giving unlimited warm-up and smart mailbox rotation to maintain high deliverability and inbox placement.
  
  

•  A dedicated Account Manager helps you customize Frank’s tone, knowledge base, and outreach style for your business goals.

Cons of Agent Frank

• Infrastructure setup (domains and mailboxes) is not included; must be purchased separately via Infraforge (private) or Mailforge (shared).
  
  

• Customization and setup take about two weeks to warm up the infrastructure before launch.

Salesforge (Agent Frank) Pricing

• Pro Plan: $48 / month – human-led campaigns, 1 user, 1 K contacts, 5 K emails.
  
  

• Growth Plan: $96 / month – unlimited users, LinkedIn senders, warm-up, API access.
  
  

• Agent Frank Add-On: $499 / month (billed quarterly) – includes 1 K active contacts, 24/7 prospecting, 20+ languages, dedicated manager, Slack support.
  
  

• Infrastructure via Infraforge or Mailforge is sold separately.

Agent Frank brings AI and human workflows together so every part of your outreach, from finding leads to booking calls.

3. Ava by Artisan AI

Ava is the AI sales agent inside the Artisan Sales Platform, built to automate over 80% of outbound sales work.

She helps teams handle prospecting, research, outreach, and deliverability from a single dashboard.

Ava acts as your digital teammate who finds new leads, personalizes outreach across email and LinkedIn, and keeps improving with every campaign.

How Ava Replaces Sales Reps?

Ava automates outbound tasks that normally take hours for human SDRs. Here’s how she builds a pipeline from start to finish:

1. Ava sources prospects from Artisan’s 300M+ verified B2B contact database. You can apply filters for role, industry, region, or company size to match your ICP.
   
   

2. With her Data Miner, she scans multiple sources, LinkedIn, Twitter (X), funding rounds, press releases, hiring data, and company news, to identify signals that show buying intent.
   
   

3. Using the Personalization Waterfall, Ava writes human-like emails and LinkedIn messages that reference each lead’s activity, job role, or company updates.
   
   

4. She automates outreach across email and LinkedIn using the built-in Workflow Builder, complete with A/B testing, follow-up timing, and analytics dashboards.
   
   

5. Ava warms up connected mailboxes, monitors domain health, rotates signatures, and dynamically adjusts send limits to keep messages landing in the inbox.
   
   

6. Through Copilot and Autopilot modes, you can either review Ava’s drafts or let her handle everything herself. She continuously learns from replies to improve tone, targeting, and conversion rates.
   
   

7. Ava sends real-time updates in Slack or email whenever she receives replies, detects positive sentiment, or qualifies a lead, so your team can take over to close deals.

Pros of Ava

• Ava runs end-to-end outbound sales, from data discovery to follow-ups, without any external integrations.
  
  

• The built-in deliverability suite includes warm-up, placement testing, send-limit adjustment, and mailbox health tracking.
  
  

• Slack and CRM integrations make it easy to track activity and sync responses in real time.

Cons of Ava

• Pricing is custom, based on outreach volume and seats; no public pricing page is available.
  
  

• Inbound automation (like replies or meeting scheduling) is still in progress.

Artisan AI (Ava) Pricing

Artisan’s pricing is customized to each company’s needs.

You’ll need to contact the Artisan sales team for a quote.

Ava is best for teams that want one unified system to manage data, personalization, deliverability, and outreach, all under one AI SDR.

4. Jason AI by Reply.io

Jason AI is the built-in AI SDR agent of Reply.io, a sales engagement platform that automates prospecting, outreach, and meeting booking across multiple channels.

It works like a digital sales rep that learns your product, builds ICPs, writes personalized messages, and books meetings, all inside Reply’s unified dashboard.

How Jason Replaces Sales Reps?

Jason automates nearly every task a sales rep or SDR handles daily, from prospecting to booking meetings, all inside Reply.io.

Here’s how the workflow actually runs step by step:

1. Jason analyzes your offer, product, and playbooks to define your ideal customer profile (ICP) before outreach begins.
   
   

2. He searches across 1B+ verified B2B contacts in 150 countries, using intent data like hiring, technology usage, and company behavior to find best-fit prospects.
   
   

3. Jason continuously monitors real-time intent signals (funding rounds, tech installs, hiring patterns, company news) and prioritizes leads most likely to convert.
   
   

4. He creates campaigns that combine email, LinkedIn, calls, WhatsApp, and SMS, all connected through dynamic workflows and Zapier automations.
   
   

5. Using data from social media, company websites, and your internal playbooks, Jason crafts unique, context-rich messages for every prospect.
   
   

6. In Autopilot mode, Jason replies automatically; in Copilot mode, he drafts responses for your review before sending.

7. With calendar integration, Jason reads replies, detects scheduling intent, and books meetings in your calendar, avoiding double bookings.

Pros of Jason AI

• Jason AI acts as a fully autonomous SDR, managing lead research, outreach, and follow-ups.
  
  

• The built-in 1B+ data engine gives access to real-time, high-accuracy contacts with intent signals.
  
  

• AI personalization tailors every message using social and web insights, raising reply rates by up to 2×.
  
  

• Jason AI adapts to 50+ languages so global outreach sounds natural and local to each market.
  
  

• The deliverability suite includes unlimited warm-ups, email health checks, Google Postmaster integration, and plain-text sending.

Cons of Jason AI

• No free plan for Jason AI SDR, only paid packages; standard outreach plans are separate.
  
  

• LinkedIn automation costs extra ($69 per account/month) and the Calls & SMS add-on ($29 per account/month).
  
  

• API access and some integrations may need setup help from Reply’s team.

Reply.io (Jason AI) Pricing

• AI SDR Starter – $800/month
  
  

• AI SDR Growth – $2,500/month
  
  

• AI SDR Enterprise – Custom pricing

Jason AI is ideal for sales teams that want AI to run prospecting, personalization, and follow-ups.

It combines data, channels, and automation in one platform, helping teams scale outreach while keeping it personal.

5. Piper by Qualified.ai

Piper is an AI SDR that works as a digital sales rep inside Qualified.ai.

She chats with website visitors in real time, qualifies them using Salesforce data, and books meetings automatically for your sales team.

How Piper Replaces Sales Reps?

Piper automates inbound engagement and qualification so your sales team only speaks with ready-to-buy prospects.

Here’s how she replaces manual SDR work:

1. Piper identifies buyers on your website using behavioral, firmographic, and CRM data from Salesforce and other connected GTM systems.
   
   

2. She proactively greets visitors via live chat, voice, or video, answers product or pricing questions, and gives guided website tours using AI-trained responses.
   
   

3. By analyzing company size, industry, and intent signals, Piper determines whether the visitor fits your ICP before routing them to the right rep.
   
   

4. Piper accesses connected team calendars to find open slots and schedule meetings the moment interest is shown.
   
   

5. Sales reps get instant notifications in Slack or Salesforce whenever a qualified buyer starts a conversation, books a call, or engages with an offer.
   
   

6. Every chat and conversion is logged into Qualified’s analytics, giving sales and marketing teams full visibility into what messaging and timing convert best.

Pros of Piper

• Piper automates lead qualification and meeting booking directly from your website, reducing manual SDR work.
  
  

• Its AI-driven chat engine feels human, adapting tone and responses to the visitor’s behavior and questions.
  
  

• Piper supports multi-language chat and can transfer complex queries to live reps instantly when needed.

Cons of Piper

• Piper focuses on inbound conversations; it doesn’t handle outbound email or LinkedIn outreach.
  
  

• Custom AI training for responses and tone requires setup time and CRM data mapping.
  
  

• Pricing is not public, and plans are tailored for Salesforce-based teams, which may limit accessibility for smaller users.

Qualified.ai (Piper) Pricing

• Qualified Premier– Custom pricing
   

• Qualified Enterprise– Custom pricing
  
  

• Qualified Ultimate - Custom pricing

Piper is ideal for Salesforce-first teams that want to turn website traffic into qualified meetings automatically. 

She helps capture, qualify, and convert inbound leads in real time, replacing the manual follow-up work of traditional SDRs.

6. Alice by 11x.ai

Alice is the AI SDR (sales development representative) by 11x.ai, designed to automate the entire outbound sales process, from prospect research to personalized outreach and meeting booking.

She acts as a 24/7 digital sales rep who finds, qualifies, and engages prospects across channels like email, calls, and social touchpoints.

How Alice Replaces Sales Reps?

Alice runs outbound sales fully automatically, identifying, engaging, and converting prospects 24/7 across multiple channels.

Here’s how she builds a pipeline step by step:

1. Alice continuously monitors your market to find new ICPs and high-intent buyers, using live behavioral and intent signals from social, public, and CRM data.
   
   

2. She conducts deep market research with data from social media, job changes, company updates, and funding rounds to score and qualify prospects automatically.
   
   

3. Using her adaptive messaging engine, Alice crafts dynamic, context-aware messages that adjust tone and content for every buyer, based on their role, company, and behavior.

4. Alice connects with prospects through email, phone, and social channels, running strategic multi-touch campaigns designed to convert.
   
   

5. She autonomously re-engages CRM contacts who went cold, reigniting conversations and uncovering missed opportunities.
   
   

6. When prospects respond, Alice schedules qualified meetings instantly and syncs everything to your CRM, ensuring full visibility.

Pros of Alice by 11x.ai

• Alice combines deep personalization, autonomous prospecting, and self-learning to outperform human SDRs at scale.
  
  

• The platform includes proprietary deliverability tools to protect sender reputation and boost inbox placement.
  
  

• Alice works seamlessly with your existing GTM stack, syncing data across CRMs and marketing tools.

Cons of Alice by 11x.ai

• Pricing is not publicly listed, users must contact 11x.ai for a custom quote.
  
  

• Voice and inbound automation are handled by a separate digital worker (Julian), not Alice.
  
  

• Advanced reporting features and analytics dashboards are still being expanded.

Alice by 11x.ai Pricing

It has custom pricing based on use case, outreach volume, and company size.

Alice by 11x.ai is built for teams that want a true “hands-off” outbound motion, running prospecting, personalization, and follow-ups on autopilot while syncing with your existing systems.

7. Chase by MeetChase

Chase is the AI SDR created by MeetChase, built to handle the full sales development process, from lead sourcing and personalized outreach to nurturing and booking meetings.

He acts like a digital teammate who talks to prospects naturally, answers questions, shares resources, and turns cold leads into confirmed calls.

How Chase Replaces Sales Reps?

Chase automates both the creative and technical sides of outbound sales, combining AI automation with human-crafted messaging to deliver meetings, not just leads.

Here’s how Chase runs your entire outbound process:

1. Chase sources contacts from a 600M+ global database powered by People Data Labs, ensuring GDPR and CCPA-compliant B2B data. It enriches company and contact records with firmographic and technographic details for precise targeting.
   
   

2. Instead of filters and CSV uploads, you can simply describe who you want, for example, “find CMOs at SaaS companies in the UK”, and Chase automatically builds your ICP and contact list using those natural-language prompts.
   
   

3. All cold-email sequences are written by copy experts from Ogilvy and Edelman, then scaled through AI. This mix of human insight and AI precision keeps every email sounding authentic, not robotic.
   
   

4. Chase manages full conversations over email, answering product or pricing questions, sharing decks, and handling referrals, until a lead is ready to talk.
   
   

5. It syncs directly with your team’s Google or Microsoft calendars to schedule qualified meetings automatically, handling time zones and invites seamlessly.
   
   

6. Chase warms up your domains, monitors sender reputation, and uses native Gmail and Outlook integrations to maintain high inbox placement and prevent spam issues.
   
   

7. All outreach, replies, and meetings are visible inside a unified dashboard, showing what’s working and where to optimize next.

Pros of Chase by MeetChase

• Chase combines AI automation and human creative input, allowing campaigns to sound natural while running at full scale without manual effort.
  
  

• Its machine learning engine analyzes replies and engagement to adjust timing, tone, and follow-up cadence automatically, improving conversions without manual tweaks.

Cons of Chase by MeetChase

• The setup process requires manual onboarding (about 10 days) for creative alignment and AI calibration before campaigns go live
  
  

• Pricing depends on meeting volume or revenue outcomes, which may not suit teams that prefer fixed monthly budgets.

MeetChase (Chase) Pricing

• Commission-Based Plan: 10% commission on first-year revenue plus infrastructure costs (aligned incentive model).
  
  

• Pay-Per-Meeting Plan: $250 per qualified meeting plus infrastructure costs.

Chase by MeetChase is ideal for teams that want results-based outbound, not monthly software fees.

You only pay when you get meetings or revenue, making it one of the most performance-driven AI SDR options in the market.

Which AI SDR Agent Should You Choose?

Every AI SDR agent has a different strength.

The right choice depends on where your sales team needs the most help.

• Ava is best if you want a complete outbound system that handles everything automatically.
  
  

• Jason works well for teams running multi-channel outreach through email, LinkedIn, and calls.
  
  

• Piper focuses on inbound leads, turning website visitors and form fills into meetings.
  
  

• Chase fits companies that care about creative messaging and verified data accuracy.
  
  

• Alice is built for scale, tracking, and engaging buyers worldwide, 24/7.

If you’re looking for an AI SDR that brings all these abilities together, lead research, personalization, outreach, and optimization, choose Zara by Stamina.

Zara acts like a full-time SDR. It studies your market, finds intent signals, writes messages that sound human, and books qualified meetings automatically.

Book a quick demo with Zara to see how it can help your team build more pipeline and close more deals.