We Took 20 AI SDR Demos In The Last 6 Weeks: Here's Our Detailed Review
You’ve heard it:
“AI SDRs will replace your sales team.”
Cool. But which one actually works?
We took 20 AI SDR tool demos.
Here’s what we found:
- Most tools = basic sequencers with GPT slapped on
- A few booked real meetings
- One replaced 3 tools we were duct-taping together
- One stood out as the only AI SDR worth betting on in 2025
In this guide, you’ll get:
✅ Results from real-world tests
✅ Pros, cons, and use-case picks
✅ The truth behind the AI sales hype
Spending $99–$999/month on an AI SDR?
Read this first.
TL;DR – 20 AI SDR Tools We Tested
- Agent Frank – The only tool that gave us reply-aware AI, inbox placement control, and real booked meetings. Built for pros.
- AiSDR – Best if you use HubSpot. Syncs CRM lists, runs follow-ups. Great for lead nurturing, weak for cold.
- 11x.ai – Fully-managed AI SDR agents. Great if you want hands-off results. Expensive, no reply logic, limited control.
- Instantly.ai – Scales cold email fast. But the reply logic is poor, and it’s more about blasting than closing.
- Smartlead.ai – Good sending infrastructure. Inbox rotation is solid. But AI content feels generic.
- Outreach.io – Powerful sequencing and CRM sync. Great for big teams, but too rigid and pricey for lean ops.
- Regie.ai – Content creator for sequences, not a true SDR. Useful, but needs to be paired with a sending engine.
- Salesloft – Reliable, structured engagement. But bloated UX, stale AI, and locked-in contracts make it feel stuck in 2019.
- Lemlist – Visual-first cold emails that stand out. Not AI-driven. Great for replies, weak for smart scaling.
- Apollo.io – Decent enrichment. The AI layer is weak. Better as a data + CRM platform than a true SDR.
- ZoomInfo – Enterprise-grade AI over rich data. Great for big teams, not for startups or lean ops.
- Reply.io – Multichannel sequencer with basic AI add-ons. Still feels like a traditional outreach tool.
- Mailshake – Cold email tool with smart suggestions. Decent AI, but limited logic and no true reply awareness.
- Lusha – Fast LinkedIn enrichment. Great for data pulls, but no outreach, AI, or automation.
- LeadIQ – LinkedIn-first data capture. Quick and simple, but flaky data and limited functionality.
- Clay – Workflow engine for prospecting. Insanely customizable. But steep learning curve, not a sender.
- Lavender.ai – AI email coach for Gmail/Outlook. Helps you write better, but doesn’t send or manage replies.
- Mixmax – Gmail-native SDR tool. Great for solo teams, weak on multichannel and automation depth.
- Snov.io – Budget-friendly all-in-one starter. Good for lean teams, but not scalable for serious ops.
- Hunter.io – Great for fast, accurate email lookups. No AI, no sending — pure data tool.
Top 20 AI SDR Tools
AI SDR Tool Comparison Table
#1 Agent Frank – The Best AI SDR Tool That Actually Books Meetings
Agent Frank is a 24/7 AI SDR software built to replace your entire outbound stack, not just your SDR.
- No Apollo for lead data
- No Smartlead or Instantly for sending
- No Lemwarm or Warmup Inbox for deliverability
Frank does it all.
Prospecting, outreach, warm-up, email infrastructure, inbox monitoring, reply handling, follow-ups, and calendar booking.
Think of him as your AI-powered SDR assistant — only faster, cheaper, and more consistent.
Agent Frank Features (That Actually Matter)
- 🧠 Auto-Pilot & Co-Pilot Modes – Let him run solo or review drafts before sending
- 📚 Trained on Your Product – Upload docs, URLs, and knowledge base
- ✉️ Inbox Setup & Warm-Up – Uses Mailforge or Infraforge, no extra tools needed
- 🔍 500M+ Contact Search – Pulls leads via Leadsforge, filters by ICP
- 💬 Smart Reply Handling – Not just open tracking — actual conversations
- 🌐 20+ Language Support – For global outreach
- 🤝 Dedicated Account Manager + Slack Support
No dependencies. No hidden costs. No fluff.
Pros vs ❌ Cons
Agent Frank Pricing (2025)
Frank doesn’t charge you by the seat. He charges for Active Contacts, leads he’s actively working on every month.
- Starts at $416/month (annual billing)
- Covers 1,000 active contacts/month
- Scales to 2,000+ at $0.25/contact
- Includes everything: email infra, warm-up, prospecting, outreach, replies, and booking
- No hidden fees. No upsells.
Bonus: You get 100 free credits to test him via Leadsforge.ai
Limited time only.
Agent Frank Review Summary
If you’re tired of switching between 5 tools to do 1 job.
If you’ve burned SDR salaries with no pipeline to show for it.
Agent Frank is the AI SDR you hire when you want results, not excuses.
- Built for founders, sales teams, and agencies
- Designed to automate pipeline creation
- Runs on its own, so you can focus on closing deals
👉 Book a demo and start your first campaign.
#2. AiSDR – Best AI SDR Tool for HubSpot-Powered Teams
AiSDR is an AI-powered sales agent that connects directly to HubSpot, turning lists, lead scores, and custom fields into personalized outreach across email and SMS.
It also scrapes LinkedIn activity to make messages feel timely and relevant.
Think "You just posted about X…" then a CTA tied to your offer.
The result:
Less writing. More replies. Higher quality meetings.
Key Features of AiSDR
- 🔗 Native HubSpot integration — no duct tape, no zaps
- 🧠 Dynamic personalization — uses LinkedIn + CRM data
- 📩 Multi-channel — email and SMS outreach
- 🗃️ 700M+ built-in lead database
- 💬 Handles OOO replies, referrals, and filters bad leads
- 🛠️ Lead scoring, tone adjustment, auto-segmentation
- 👨💼 Dedicated onboarding + support
This isn’t for cold-blast amateurs.
It’s built for real SDR teams working warm inbound, trials, events, and content leads.
✅ Pros vs ❌ Cons
AiSDR Pricing
AiSDR runs on a flat pricing model:
- $750/month
- Includes:
- 1,000 personalized messages/month
- Unlimited seats
- Built-in global lead database (700M+ contacts)
- Warm-up infrastructure + full support
- 1,000 personalized messages/month
Need more volume?
You’ll need to talk to sales for pricing scales, but it isn’t transparent.
Should You Use AiSDR?
Yes — if:
- You use HubSpot as your primary CRM
- You care about high-context personalization
- You’re running long-cycle campaigns: trials, webinars, inbound
No — if:
- You’re using anything but HubSpot
- You’re sending fewer than 1,000 emails/month
- You want deep fallback logic or multithreaded sequences
AiSDR isn’t for spammers. It’s for sales teams that care about timing, context, and CRM alignment.
It turns cold outreach into warm, personalized touches that actually get replies.
If HubSpot is your home base, this is one of the best AI SDR tools on the market.
We Tested 3 AiSDR Alternatives For 30 Days: Here's What We Found
#3. 11x.ai – The Plug-and-Play AI SDR (If You’ve Got Budget)
11x.ai sells fully-managed AI SDR agents.
These aren't dashboards or sequencers, they’re preset AI personas trained to do cold outreach for your ICP.
You hand over the target, choose your agent, and their system handles prospecting, outreach, follow-ups, and booking.
It’s literally SaaS as a service.
No sequences. No edits. No maintenance.
Key Features of 11x.ai
- 🎯 Pre-built SDR agents (like Alice for outbound, Jordan for calls)
- 📩 Multi-channel outreach — Email + LinkedIn (+ Voice in some cases)
- 🧭 Automated lead sourcing based on ICP
- 📆 Meeting booking built-in
- 🧼 No need to manage replies, sequences, or warm-up
- 🛠️ Campaign setup done-for-you
- 📑 Ideal for lean teams who want hands-off outbound
This isn’t a tool.
It’s a cold outreach subscription that mimics having a small SDR team on autopilot.
✅ Pros vs ❌ Cons
✅ Pros
❌ Cons
Fully managed — zero setup required
$5K/month baseline pricing
Dedicated AI SDR agents
No reply automation — still manual
Multi-channel outreach
Long-term contracts, limited flexibility
Meeting scheduling built-in
Shallow personalization (basic fields)
ICP-based auto prospecting
Doesn’t perform well in niche targeting
11x.ai Pricing
Pricing is not available on their website.
Should You Choose 11x.ai?
✅ Use 11x.ai if:
- You want cold outreach 100% done-for-you
- You don’t want to write copy or build logic
- You’re replacing SDRs and need speed over control
❌ Avoid 11x.ai if:
- You’re an early-stage founder with a tight budget
- You need high-touch personalization or reply handling
- You care about monthly flexibility and owning the process
11x.ai gives you results. But you pay for convenience.
It’s like hiring an SDR team with a startup-friendly UI.
Zero learning curve. Zero control. High cost.
If that tradeoff works for you, this is the fastest path to the pipeline.
👉 [Read: 5 Best Alternatives to 11x.ai →]
#4. Instantly.ai – Best Cold Email Tool If You Care About Scale (Not Control)
Alt Text: Instantly.ai Homepage
Instantly is a lightweight cold email platform built to help you send thousands of emails per day without destroying your sender reputation.
It’s not trying to be your SDR. It’s not trying to reply for you.
It’s a bulk sender with built-in warm-up, automated sequences, and a simple UI.
You feed it leads.
It handles warm-up, sending, tracking, and follow-ups across multiple mailboxes.
Key Features of Instantly.ai
- 📩 Send up to 500K emails/month with high deliverability
- 🔥 Unlimited inbox warm-up on every plan
- 📦 Built-in B2B lead database (limited filters)
- 🔁 Automated follow-up sequences
- 🧠 AI CRM to track replies and manage basic pipeline
- ⚙️ Multiple sending accounts supported
- 📈 Campaign-level analytics to optimize performance
Let’s be clear: this is volume-focused software.
It’s made for scale. Not finesse.
✅ Pros vs ❌ Cons
Alt Text: Instantly.ai G2 reviews
✅ Pros
❌ Cons
Easy to set up, no technical skills needed
Weak on lead filtering and enrichment
Unlimited warm-up = better inboxing
Personalization is very basic
Great value at lower tiers
Higher tiers get expensive fast
Helps manage large-scale outreach
Not ideal for small, high-touch campaigns
AI CRM keeps reply tracking clean
Beginners may feel overwhelmed
Instantly.ai Pricing
Alt Text: Instantly pricing
Here’s what it’ll cost you depending on how aggressive you want to go:
Plan
Price/mo
Emails
Key Features
Growth
$37
5,000 emails
Basic warm-up + sequences
Hypergrowth
$97
100,000 emails
Large campaigns, premium support
Light Speed
$358
500,000 emails
Enterprise-level outreach
Enterprise
Custom
500K+
Private infra, account manager
If you’re sending under 10K emails/month, start with Growth.
If you’re managing multiple inboxes and scaling outbound, Hypergrowth or Light Speed are better bets.
Should You Use Instantly?
✅ Use Instantly if:
- You already have lead lists and need to hit volume
- You’re running 5–50 inboxes and want reliable deliverability
- You want a simple, no-BS tool to send cold emails at scale
❌ Avoid Instantly if:
- You need advanced personalization or reply-aware outreach
- You want multi-channel support (LinkedIn, SMS, etc.)
- You’re focused on ABM, niche targeting, or complex sequences
[Compare Instantly to Salesforge →]
Or keep reading to see how Smartlead.ai stacks up.
