AiSDR vs 11x vs Agent Frank: Detailed AI SDR Comparison

For a thorough understanding of what each option offers, a simplified comparison table isn't enough to grasp all intricacies that come with each tool, so let's dive deeper into what makes AiSDR, 11x and Salesforge's Agent Frank unique.

AiSDR vs 11x vs Agent Frank: AI Agent Overview

An AI SDR (AI sales development representative) is an AI agent or AI sales assistant built to automate repetitive tasks that traditionally fall to human SDRs:

• Lead research and discovery
• Personalized outreach across multiple channels
• Follow-ups
• Reply handling
• Live routing to sales reps
• And ultimately booking meetings or passing warm leads to account executives

AiSDR positions itself as a full sales autopilot that “builds outreach from scratch,” handles multi-channel outreach, and claims measurable metrics like open rates and meetings booked per leads processed.

11x frames its digital workers as autonomous digital workers that not only send email outreach but capture website visits and take inbound phone/chat calls - effectively combining outbound sales outreach with live voice calls.

Agent Frank takes AI SDRs to their limit by combining prospecting, tailored outreach, follow-ups and meetings booked with an explicit emphasis on working as an AI-powered team member inside your stack. Notable Agent Frank highlights include:

• Unlimited email mailboxes, LinkedIn senders, workspaces and even seats
• 24/7 automated prospecting (with adjustable working hours if necessary)
• A Dedicated Account Manager
• Auto-Pilot & Co-Pilot modes
• Automatically generated multi-source hyper-personalized messages
• Fully customizable Agent personality
• Availability in 20+ languages
• A complimentary Salesforge account to manage the Agent
• Premium deliverability capabilities (including unlimited free warm-up via Warmforge)

Pricing Plans

Agent Frank provides flexible pricing oriented around outreach scale. Pricing is charged by Active Contacts (the number of prospects the Agent is processing at any given time), and annual billing includes 2 months free.

• From $599/mo for the base monthly billing plan (1,000 Active Contacts), where you get 1,000 active contacts maintained throughout the month (the agent will reach ~2,000 - 2,500 new leads per month and send ~6,000 - 7,500 personalized emails)

The Salesforge Stack also offers multiple infrastructure options based on your budget/needs, so you don't need to stitch third-party products to make it work. The best options for Agent Frank include:

• Infraforge (dedicated IP email infrastructure) - starts at $33/month (billed annually) for 10 mailboxes.
• Megaforge (premium, multi-ESP distribution with smart distribution to maximize deliverability) - starts at $69/month for 20 mailboxes.

The Forge team will help set up the mailboxes and, additionally, the Mailforge (shared IP) and Primeforge (Gmail and Outlook) email infrastructure options are also available. Teams can also connect their own mailboxes from other providers if desired.

AiSDR provides quarterly-first pricing built around outreach volume and credits. Pricing is sold as tiered plans with an annual option that gives 20% off.

• From $900/mo for the Explore plan (you get: 1,200 lead-search credits/month, 1,200 AI messages/month, roughly ~3 meetings/month, core outreach features (AI-researched emails & LinkedIn messages, AI prospecting & enrichment, LinkedIn engagement & keyword tracking), turnkey email setup & warmup, a dedicated GTM engineer for onboarding, 24/7 Slack support)
• $2,500/mo for the Grow plan (you get: 4,500 lead-search credits/month, 4,500 AI messages/month, roughly ~11 meetings/month, everything in Explore + AI videos inside messages, AI voice notes for LinkedIn, AI account scoring in HubSpot & Salesforce)
• Enterprise plan - custom pricing based on your goals and send volume (includes everything in Grow + website visitor tracking + enrichment + outreach, priority feature requests, and a dedicated FTE for ongoing support)

11x requires contacting sales for the specific AI SDR pricing details.

AI-Powered Data & Lead Generation

Lead discovery and high-quality lead research are the backbone of any AI SDR.

• AiSDR advertises access to hundreds of millions of contacts and emphasizes buyer intent signals sourced from website visits, LinkedIn activity, job boards and news. The platform markets itself on “finding people who are in the market” and turning intent signals into prioritized lists.
• 11x positions itself as a data-first platform that unifies many premium providers and promotes signal-based targeting and live search to surface timely prospects - particularly useful if you need real-time signal-based lead discovery.
• Agent Frank’s pages highlight a very large contact datanase with hundreds of millinos of contacts too, as well as continuous automated prospecting, plus the ability to set up continuous prospecting based on your ICP so the AI is always discovering and feeding new leads monthly.

Importantly, Agent Frank explicitly ties discovery to a single execution stack, which means you get prospecting and outreach in one system rather than stitching multiple point tools together. That reduces manual due diligence and the “lost leads” that happen when CRM data is fragmented across multiple sources - all included for a more affordable price than the other options.

Multi-Channel Outbound Sales

Multi-channel sequencing matters: reaching prospects through multiple touchpoints improves response rates and reduces the risk of sounding robotic.

• AiSDR emphasizes an adaptable sequence builder that lets you layer emails, LinkedIn messages, voice notes, videos and social touches for deep personalization and nurture flows.
• 11x markets omni-channel playbooks - Alice engages via email and LinkedIn and is designed to integrate with Julian (an AI phone agent) for voice calls and inbound qualification, enabling an end-to-end conversation experience that includes phone calls and instant inbound follow-up.
• Agent Frank supports email + LinkedIn at scale and uniquely offers unlimited email mailboxes and LinkedIn senders. Moreover, Agent Frank offers conditional multi-channel sequences, and built-in premium warm-up to protect deliverability (so you’re not just blasting cold emails and hoping).

Agent Frank’s approach is practical: unlimited senders and mailboxes let you scale outreach volume without seat limits, and multi-channel orchestration targets buyer pain points across touchpoints - while giving you the option of Co-Pilot mode for human review.

For teams worried about inbox rotation, deliverability, and keeping outreach synchronized with CRM data and sales reps, the integrated full-stack approach reduces the number of moving parts you must stitch together.

Deliverability & Email Infrastructure

Deliverability, CRM data hygiene, and integrations are often overlooked during vendor selection, yet they’re mission-critical for converting warm signals into meetings booked.

• AiSDR offers mailbox automation using Gmail/Outlook and claims it can offload infrastructure to protect domain health. It also highlights HubSpot sync and supports monitoring deliverability and health scores.
• 11x markets bi-directional CRM integrations with major CRMs and emphasizes enterprise-grade security (SOC2) and end-to-end encryption.

But other than standard deliverability capabilities expected from any email outreach tool (warm-up, email verification, inbox rotation), they don't offer that much in the way of deliverability or infrastructure.

Agent Frank, on the other hand, places heavy emphasis on this field:

• Unlimited free warm-up via Warmforge
• Dynamic IPs
• Rotating mailboxes
• Spam checkers
• Placement tests
• ESP matching
• Mailbox health monitoring
• Deliverability metrics

And more. Building sender reputation gradually while spreading volume across addresses and IPs to avoid single-mailbox throttles or sudden reputation hits is crucial for a scaling business. And that's paired with proprietary infrastructure options:

• Mailforge (shared infra)
• Infraforge (private infra)
• Primeforge (Google/Outlook)
• Megaforge (multi-ESP premium infrastructure that combines the aforementioned infras to maximize deliverability)
• Or your team can connect your own infrastructure

Those infrastructure features reduce the risk of landing in spam and make multi-channel outreach more reliable, especially when you have a leads database and want to integrate email at scale.

For sales teams or lead generation agencies focused on large scale operations and high-volume cold outreach, Agent Frank’s model minimizes the operational burden of maintaining email metrics, domain health, and warm-up cycles so teams can scale sends across many mailboxes with less risk.

Personalization

Deep personalization and sharper messaging are what separate "good AI SDRs” from spammy tools.

• AiSDR makes personalization a headline: the product promises that AI mimics your tone, uses prospect LinkedIn signals, generates creative assets and provides an “AI Strategist” to recommend campaign angles - all intended to make messaging feel handcrafted.
• 11x emphasizes smart research agents that pull insights from PDFs, funding events, news and web signals so personalization is context-rich and scalable.
• Agent Frank’s personalization model is more operationally focused: when you set up your Agent, you can upload a knowledge base (product collateral, website, docs, etc.) so the AI uses first-party data and chosen personalization sources (prospect website, blog, LinkedIn posts, etc.) to craft outreach.

Agent Frank even offers tonality controls (nine tonalities) and lets you fine-tune goals to more its multi-source AI hyper-personalization even more compatible with your needs.

Because Agent Frank learns from your direct materials and offers a Dedicated Account Manager during setup, the platform’s messaging tends to be closely aligned to your job descriptions, positioning, and the way your sales reps actually speak.

That reduces the risk of sounding robotic while enabling repeatable personalized outreach across leads monthly.

Customer Support & Resources

Customer support matters as much as raw capabilities when you’re evaluating an AI SDR - especially if you want fast fixes for deliverability, help with manual setup, or ongoing tuning of outreach campaigns and automated follow-ups.

All three vendors provide self-serve resources and human touchpoints, but they emphasize different mixes of channels and hands-on support.

• 11x takes a more enterprise-oriented posture. The emphasis on help articles is smaller, and they don't seem to offer any live chat - only AI chat. Once you're a paying customer, you'll get a Customer Success Manager, but otherwise everything is fairly hands-on.
• AiSDR takes a GTM-engineer approach: they advertise a dedicated GTM engineer and 24/7 support alongside a public knowledge base, guides, videos, and blog resources. AiSDR’s help resources and the promise of continuous support are an expected benefit for paying sales teams.

Salesforge takes customer support & resources very seriously, while coupling product tooling with a people-first enablement stack that’s designed to reduce onboarding friction.

• Salesforge focuses on customer support and convenience and reduces the manual tasks sales teams often struggle with - no separate deliverability vendor, fewer manual data entry steps, and a partner focused on ironing out initial list hygiene and infrastructure.

Besides that, Agent Frank customers get:

• 24/7 email and live chat support
• Extensive documentation
• Youtube tutorials
• An active Slack community
• And even weekly AMA sessions

For growing sales teams and lead generation agencies that prefer to shift heavy operational overhead away from internal staff, Agent Frank’s model is a strong fit.

They offload the manual tasks that consume SDR time and let reps focus on higher-value activities like closing deals and handling qualified leads.

Final Verdict - All Three Offer Good AI SDRs, But Which AI Sales Agent is the Best For Your Business?

• AiSDR is great for deep personalization + flexible month-to-month experimentation or HubSpot-centric workflows.
• 11x is a possible option for enterprise-grade digital workers that combine outbound, inbound voice, and broad data coverage for extremely large teams.
• But Agent Frank is perfect if you're looking for an integrated AI agent built to replace multiple point solutions with a single sales execution stack, unlimited senders, and per-contact pricing engineered to scale outreach without the overhead of seat licensing.

If your business needs are about getting more pipeline with transparent pricing, minimizing the number of sales tools, and ensuring deliverability while still maintaining personalized outreach and the option to operate the agent in co-pilot or auto-pilot, Agent Frank specifically emphasizes those strengths.

Dedicated Account Manager onboarding, Warmforge for email health, Mailforge/Infraforge/Primeforge for email infrastructure, unlimited LinkedIn and mailbox senders, flexible active-contact pricing, and 24/7 automated prospecting.

Those elements map to real pain points sales teams list most often:

• Sounding robotic
• Dealing with a bunch of integrations
• Juggling long contracts
• High churn from fragmented kitchen-sink stacks
• And the repetitive tasks that drain reps (lead research, outbound sequences, follow-ups).

Agent Frank’s pitch is pragmatic: replace multiple sales tools, run outbound sales full automation or with human oversight, and scale meetings booked without inflating monthly tool costs - and the Forge Stack is explicitly designed to make that simple and trackable in CRM data.

If your business needs more pipeline, better inbox placement, fewer vendors to manage, and a cost model linked to leads monthly (not seats), Agent Frank is a strong choice to consider.

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