11x vs Amplemarket: AI SDR Comparison

I compared Agent Frank vs 11x.ai vs Amplemarket for one decision: who should run your outbound when you can't add SDR headcount. I checked each vendor's live pricing page, help docs, and reviews on October 9, 2026.

11x.ai is backed by a16z and Benchmark, and its AI SDR, Alice, comes with 11x onboarding and a customer success manager. Amplemarket is an all-in-one sales platform, and its Duo copilot finds buyers and drafts sequences for your reps.

Agent Frank is Salesforge's AI SDR for email and LinkedIn. Dualboot Partners chose him partly for quarterly terms, and he tripled its monthly reply volume.

AI SDR Comparison at a Glance: 11x.ai vs Amplemarket

The facts below come from each vendor's live pricing page, help docs, or Salesforge's own pages. The last row is my read of each tool's fit.

11x.ai Overview: Alice, Pricing, and Limitations

11x.ai sells AI "digital workers" to revenue teams, from offices in San Francisco and London. Alice runs outbound prospecting, and Julian, priced separately, qualifies inbound leads by phone, chat, and SMS. The company says it has raised $70M+ from a16z and Benchmark.

Alice's core features, per 11x's pricing page and help docs:

• Channels: email, consented calls, LinkedIn, SMS, and WhatsApp, combined in one sequence.
• Deep research: web sources, news, job postings, and CRM history, returned as a cited report.
• Control modes: review every message, send approvals to a named person, or run on autopilot.
• Smart Replies: each reply is classified, then answered with a draft or escalated to a person.
• Deliverability: 11x-managed Gmail mailboxes with domain setup, warm-up, rotation, and bounce suppression.
• Platform: two-way CRM sync, meeting scheduling, analytics, a Slack channel, and a CSM on every plan.

11x.ai pricing

11x Growth starts at $3,750/mo, billed annually, for up to 5 users and 2,000 new prospects a month. 11x Pro (10 users, 5,000 prospects) and 11x Enterprise (unlimited users, 10,000+ prospects) are custom quotes.

11x charges per lead, not per send. Annual is the default term, and 11x Pro and 11x Enterprise can sign two- or three-year deals.

The same page also gives two prices. The plan card works out to $45,000 a year, but the page's FAQ says 11x Growth starts at $36,000 a year. Get the figure in writing before you sign.

Who 11x.ai is best for

11x fits mid-market and enterprise teams that want an AI SDR program backed by the vendor, with mailboxes, onboarding, and a CSM in one annual contract. It also fits teams that need SMS or WhatsApp in the same sequence. If a full year is too long, compare these 11x.ai alternatives.

Limitations I noticed

• No monthly or quarterly term. Every plan bills annually, and every plan card says Talk to sales.
• Managed mailboxes are Gmail only. The pricing page lists no Outlook or dedicated-IP option.
• 11x Growth has no API, team management, or multi-language outreach. Those start at 11x Pro.

What reviewers say about 11x.ai

11x has 38 Trustpilot reviews, and its critical ones carry no company reply.

In this 1-star review, a buyer says 11x positioned a pilot throughout the deal, then required a full annual commitment before any validation. A 2-star review from March 2026 reports $9,000 spent on Alice, 9,000 messages sent, and zero meeting requests.

The 11x.ai review on this blog covers more, and 11x.ai vs Agent Frank compares the two AI SDRs directly.

Amplemarket Overview: Duo Copilot, Pricing, and Limitations

Amplemarket is an all-in-one sales platform with a B2B database, multichannel sequences, a dialer, and deliverability tools. Its AI layer, Duo, scans your market for buying signals and prepares outreach for each buyer.

Amplemarket describes Duo as "Human in the loop by design." Reps review each suggested sequence, then edit, regenerate, or send it with one click.

• Duo Copilot: surfaces buyers from signals such as job changes and past closed-lost deals, each with a suggested sequence.
• Duo Signals and Duo Copywriter: track buying intent and draft personalized emails on every plan.
• Duo Voice and Duo Inbox: AI voice messages from Amplemarket Growth, and reply drafts as an Amplemarket Growth add-on or on Elite.
• Data: yearly email and phone credits per user, with phone numbers from 200M verified mobiles.
• Engagement: multichannel sequences, workflows, analytics, and an outbound dialer on every plan.
• Deliverability: a Domain Health Center and a warm-up booster on every plan.
• Access and security: MCP for Claude or ChatGPT, SOC 2 Type II, and GDPR compliance.

Amplemarket pricing

Only the entry plan has a public price. Amplemarket Startup costs $600/mo on an annual term, or $7,200 a year, for 2 users, 27,000 contacts, and 13,500 email credits per user a year.

Amplemarket Growth (4 users, 140,000 contacts) and Elite (10 users, 400,000 contacts) are custom quotes. Extra users cost more on every plan, and all plans include a free trial. Pricing breakdowns from Hackceleration and LeadHaste confirm the $600 price and the annual term.

Who Amplemarket is best for

Amplemarket fits sales teams with several reps who want data, signals, sequences, and a dialer in one contract. It suits teams that want AI to assist reps rather than send for them, and call-heavy teams, since the dialer is on every plan. If an annual contract doesn't fit, this list of Amplemarket alternatives covers 10 other options.

Limitations and what reviewers say

• Annual term only. The $7,200 first year is the floor, and bigger plans need a sales call.
• Reps stay in the loop. Duo prepares the outreach, so rep time is still part of the cost.
• No reply drafting on Amplemarket Startup. Duo Inbox is an add-on on Amplemarket Growth.

Amplemarket has no Trustpilot reviews, so I couldn't capture a critical one. MarketBetter's 2026 pricing breakdown lists high cost for small teams and the annual requirement among common complaints.

This Amplemarket review sums up 100+ user reviews. Salesforge vs Amplemarket compares the two platforms directly.

Agent Frank Overview: The AI SDR Built on the Forge Stack

Agent Frank is Salesforge's autonomous AI SDR, built on the Forge Stack. He finds prospects, enriches and verifies their data, writes personalized emails and LinkedIn messages, follows up, and books meetings, 24/7.

He works inside a free Salesforge workspace, where you can track his progress and read every message. Salesforge says he won't replace your sales team, and this AI SDR vs SDR comparison weighs the two.

• Auto-Pilot or Co-Pilot: let him run alone, or approve and edit his drafts first.
• One agent, two channels: he runs email and LinkedIn outreach from one setup.
• 500M+ contacts: he prospects continuously through Leadsforge, or you upload your own lists.
• Your facts: he treats the brochures, decks, and docs you upload to his Knowledge Base as his source of truth.
• Personal touches: he pulls from each prospect's website, blog, and LinkedIn posts, in 9 tonalities and 21+ languages.
• Meeting goals: he sends your calendar link, asks for theirs, or points them to a specific link.
• Primebox™: replies from both channels land in one inbox.
• People behind him: a dedicated Account Manager and a shared Slack channel.

The Forge Stack puts leads, mailboxes, warm-up, and outreach under one roof. Leadsforge sends leads into Salesforge with no CSV export, and Warmforge warms every mailbox for free.

Mailforge, Infraforge, and Primeforge supply shared, dedicated, and Google or Microsoft mailboxes under one login. You can run the whole stack with your own team, with Agent Frank, or through a Forge Expert agency.

This full Agent Frank tutorial from the Salesforge YouTube channel walks through setup and live campaigns.

Agent Frank pricing

Frank is priced per Active Contact, the number of prospects he works at once. 1,000 Active Contacts cost $599/mo billed quarterly or $499/mo billed annually, which covers about 2,000-2,500 new leads and 6,000-7,500 emails a month.

Mailboxes cost extra. Connect your own, use Infraforge from $33/mo billed annually for 10 mailboxes, or pick Megaforge from $69/mo for 20 mailboxes across several providers.

Agent Frank is a separate subscription from Salesforge's human-led plans: Salesforge Pro at $48/mo monthly ($40/mo annual) and Salesforge Growth at $96/mo monthly ($80/mo annual).

Who Agent Frank is best for

Salesforge says Frank fits B2B companies with $5K-$100K ACVs that sell to startups, SMBs, or mid-market buyers and target 3,000+ businesses. It calls him a "not-so-good fit" if you primarily target Fortune 500 companies, run long RFP cycles, or close six- to seven-figure deals.

VAI Consulting booked 3 calls in the first week after narrowing Frank's ICP and messaging.

Limitations

• No free trial: you book a demo first, and a 2-week warm-up comes before his first send.
• Mailboxes cost extra on top of his price.
• He works email and LinkedIn only. Salesforge lists no phone, SMS, or WhatsApp channel for him.

Salesforge has 33 Trustpilot reviews, including this 5-star one about running several LinkedIn profiles at once.

See Salesforge
in Action

Start Live Demo Now

Head-to-Head Feature Comparison: 11x.ai vs Amplemarket

I compared the three on six areas, using each vendor's live pricing page and help docs. Agent Frank is the pick on balance, but 11x and Amplemarket each lead on one point.

Autonomy and outreach channels

11x.ai: Alice can mix email, consented calls, LinkedIn, SMS, and WhatsApp in one sequence. You can review every message, route approvals to a named person, or put her on autopilot.

Amplemarket: Duo prepares a multichannel sequence for each buyer, with steps like a social connection and an email. Reps review it, then edit, regenerate, or send it with one click.

Agent Frank: Frank runs email and LinkedIn from one setup, on Auto-Pilot or Co-Pilot, 24/7. He prospects, writes, follows up, and books meetings without a rep pressing send. In Co-Pilot mode, you accept or edit his work before it goes out.

On channel count alone, 11x leads, with SMS and WhatsApp next to email, calls, and LinkedIn. For rep-led calling, Amplemarket leads, since its outbound dialer comes on every plan, starting with Amplemarket Startup.

Deliverability, warm-up, and infrastructure

11x.ai: Every plan includes 11x-managed Gmail mailboxes with domain setup, warm-up, rotation, bounce suppression, and domain health monitoring. The pricing page lists no Outlook or dedicated-IP option, so there is no way shown to match Outlook recipients with Outlook senders.

Amplemarket: Every plan has a Domain Health Center and a warm-up booster, with 2 mailboxes per user on Amplemarket Startup. Its spam checker and mailbox recommendation start at Amplemarket Growth.

Agent Frank: His mailboxes warm for 2 weeks in Warmforge at no extra cost, tracked by Heat Score™ (97+ is healthy). Megaforge splits 20 mailboxes across Gmail, Outlook, Mailforge, and Infraforge, so if one provider runs into trouble, the others keep sending. You can also pick Infraforge's dedicated IPs, or connect your own mailboxes, such as Primeforge Google and Microsoft inboxes with ESP matching.

UniteSync reached an 85.26% positive reply rate and a $2.86 CAC on Salesforge, Mailforge, and Warmforge. Read more about cold email deliverability.

AI personalization and lead data

11x.ai: Alice runs deep research on web sources, news, job postings, and CRM history, and cites her sources. Outreach in 105+ languages starts at 11x Pro.

Amplemarket: Duo tracks signals such as job changes and community activity, and you can bring custom signals from your CRM or API. When reps keep editing Duo's sequences, Duo updates its messaging preferences.

Agent Frank: Frank prospects from Leadsforge's 500M+ contacts, then enriches and verifies the data before he writes. He writes from your Knowledge Base and each prospect's website, blog, and LinkedIn posts, in 21+ languages. He writes about your company from the first-party data you provide, which Salesforge says keeps him accurate.

With 11x, outreach in more than one language needs 11x Pro. Frank includes 21+ languages at his entry price.

Reply handling and meeting booking

11x.ai: Smart Replies classifies each reply, drafts a response, and escalates anything that needs a person. Meeting scheduling is on every plan.

Amplemarket: Duo Inbox drafts replies to prospect emails, but only as an add-on on Amplemarket Growth or included on Elite. On Amplemarket Startup, reps handle replies without Duo Inbox drafts.

Agent Frank: Every email and LinkedIn reply lands in Primebox™, which tags sentiment and catches replies sent from a different address. Frank answers and books the meeting with your calendar link, the prospect's link, or a link you choose.

Inside Primebox™, a person can also take over any thread and reply as a human.

Pricing model and scalability

11x.ai: Alice is priced per new prospect on annual terms. More than 2,000 prospects a month means a custom 11x Pro or Enterprise quote, and multi-year deals lock the rate.

Amplemarket: Pricing follows seats and credits on an annual term. Amplemarket Startup includes 2 users, and MarketBetter's 2026 breakdown puts each extra seat at roughly $300-$400 a month. Amplemarket Growth and Elite prices come only through a sales call.

Agent Frank: Frank is priced per Active Contact on quarterly or annual billing, and the slider is public. 2,000 Active Contacts cost $1,138/mo quarterly, and Dualboot Partners chose him partly for quarterly commitments over multi-year contracts.

A full year of Frank's entry tier on quarterly billing costs $7,188 before mailboxes, just under the $7,200 Amplemarket Startup floor.

Integrations, API, and compliance

11x.ai: Two-way CRM sync is on every plan. API and webhooks start at 11x Pro, custom integrations and SSO at 11x Enterprise, and SOC 2 Type II covers every tier.

Amplemarket: Integrations, workflows, and MCP access for Claude or ChatGPT come on every plan. SSO is Elite-only, and Amplemarket holds SOC 2 Type II and GDPR compliance.

Agent Frank: Salesforge connects natively to HubSpot, Salesforce, Pipedrive, Attio, HighLevel, folk, and Breakcold, plus Clay, Zapier, Make, and webhooks. Its MCP server and Forge CLI let Claude or Cursor run the stack, and the API sits on Salesforge Growth. Salesforge is also SOC 2 compliant.

On AI-assistant access, Amplemarket and Salesforge both offer MCP, while 11x's plan grid lists none.

Pricing Comparison: Agent Frank vs 11x.ai vs Amplemarket

Agent Frank is the only one of the three you can buy without committing to a full year. That matters if you want to test an AI SDR for a quarter first. Here is what each vendor publishes.

11x and Amplemarket both quote their bigger plans privately. Frank's slider is public: 3,000 Active Contacts cost $1,647/mo quarterly, and the top setting, 50,000, costs $15,950/mo. Annual billing gives 2 months free, which turns $599/mo billed quarterly into $499/mo billed annually.

Say you want about 2,000 new prospects a month for a year. 11x Growth costs $45,000 at its card rate, or $36,000 if the FAQ figure holds.

Agent Frank costs $5,988 billed annually, plus $828 for a year of Megaforge's 20 mailboxes, so $6,816 in total. On quarterly billing, the same setup costs $8,016 a year.

Amplemarket Startup costs $7,200, and its 27,000 email credits a year cover about 2,250 contacts a month. Your reps still review and send that outreach, so their time adds to the bill.

If your team would rather run outbound itself, Salesforge Pro costs $48/mo monthly ($40/mo annual) and Salesforge Growth costs $96/mo monthly ($80/mo annual). Both include free Warmforge warm-up, and Salesforge Growth adds unlimited users, unlimited LinkedIn senders, A/B testing, ESP matching, and API access. You can compare more vendors in the sales tools directory.

Which AI SDR Should You Choose?

Pick based on who you want doing the outreach and how long you can commit.

You might consider 11x.ai if:

• You're a mid-market or enterprise team that wants an AI SDR program with mailboxes, onboarding, and a CSM in one annual contract.
• You need SMS, WhatsApp, or consented calls in the same sequence as email. On channel count, 11x is the stronger fit.
• You also want Julian, 11x's inbound agent, from the same vendor.

You might consider Amplemarket if:

• Your reps want AI to find buyers and draft sequences while they review and send.
• Calling is a core channel, since the dialer comes on every plan.
• You want one annual contract that bundles a B2B database with your sequences.

Choose Agent Frank if:

• You sell B2B at $5K-$100K ACVs to startups, SMBs, or mid-market companies, with 3,000+ target businesses.
• You want email and LinkedIn run for you on Auto-Pilot or Co-Pilot, with every reply in Primebox™.
• You want terms from $599/mo billed quarterly instead of a $7,200-$45,000 annual commitment.
• You want deliverability handled, with free Warmforge warm-up and Megaforge's multi-provider mailboxes.
• You may later run the same Forge Stack with your own team or a Forge Expert agency.

For other matchups, browse more AI SDR comparisons.

Final Verdict: The Right AI SDR for SMB and Mid-Market Outbound

11x.ai sells the widest channel mix, on an annual contract that starts at $45,000 at its card rate. Amplemarket gives reps an AI copilot, data, and a dialer, but a rep approves each sequence, and Amplemarket Startup costs $7,200 a year.

For SMB and mid-market B2B outbound, Agent Frank is the stronger choice. He runs email and LinkedIn on his own from $599/mo billed quarterly, warms mailboxes free in Warmforge, and works every reply in Primebox™. He is also the only one of the three billed quarterly, so you can test him for a quarter before committing to a year.

One result you can check: Dualboot Partners tripled its monthly reply volume after launching Frank, and chose him partly for quarterly terms over multi-year contracts. The case study is public.

If you primarily target Fortune 500 companies through long RFP cycles, Salesforge itself calls Frank a "not-so-good fit."

Frequently Asked Questions About Agent Frank, 11x.ai, and Amplemarket

Is Agent Frank better than 11x.ai and Amplemarket?

For SMB and mid-market B2B teams, yes. Agent Frank runs email and LinkedIn for you from $599/mo billed quarterly, while 11x Growth costs $3,750/mo billed annually and Amplemarket Startup costs $600/mo on an annual term.

11x is the stronger fit if you need SMS or WhatsApp in the same sequence. Amplemarket suits teams that want reps to review and send every sequence.

What's the main difference between Agent Frank, 11x.ai, and Amplemarket?

The difference is who does the outreach and how long you commit. Agent Frank and 11x's Alice both run outreach as AI SDRs, while Amplemarket's Duo drafts sequences that reps review and send.

Frank bills quarterly or annually, while 11x and Amplemarket both require an annual term. Frank also runs on the Forge Stack, with free Warmforge warm-up and Primebox™ for replies.

Which is cheaper: Agent Frank, 11x.ai, or Amplemarket?

Billed annually, Agent Frank is the cheapest of the three. His 1,000 Active Contact tier costs $5,988 a year, or $6,816 with Megaforge's 20 mailboxes, and $7,188 a year on quarterly billing before mailboxes.

Amplemarket Startup costs $7,200 a year for 2 users. 11x Growth costs $45,000 a year at $3,750/mo, though its own FAQ says $36,000.

Do 11x.ai and Amplemarket support LinkedIn outreach?

Yes, both do. 11x says Alice can combine LinkedIn with email, consented calls, SMS, and WhatsApp in one sequence. Amplemarket's sequences include social steps, and its Duo product screens show a LinkedIn connection step.

Agent Frank runs email and LinkedIn from one setup. Replies from both channels land in Primebox™, Salesforge's unified inbox.

Can I switch from 11x.ai or Amplemarket to Agent Frank?

Yes. After a demo, a dedicated Account Manager helps you create a free Salesforge workspace, and setting up Frank takes a few hours.

Your mailboxes then warm up for 2 weeks in Warmforge before he sends. Since 11x and Amplemarket both bill annually, time the switch for your renewal date so you don't pay for both.

Which AI SDR has better email deliverability?

Agent Frank has the most deliverability options. His mailboxes warm for 2 weeks in Warmforge at no extra cost, with Heat Score™ tracking, and Megaforge spreads 20 mailboxes across Gmail, Outlook, Mailforge, and Infraforge.

11x includes managed Gmail mailboxes with warm-up on every plan. Amplemarket includes a warm-up booster and a Domain Health Center, and its spam checker starts at Amplemarket Growth.

Does Agent Frank offer a free trial?

No. Agent Frank has no free trial, so you book a demo to see him before you buy. His price starts at $599/mo billed quarterly or $499/mo billed annually.

Salesforge's own plans have a 14-day free trial, and the signup form asks for no card. Amplemarket says all its plans include a free trial, while 11x's pricing page lists none.

Who are 11x.ai and Amplemarket best for?

11x.ai fits mid-market and enterprise teams that want an AI SDR with mailboxes, onboarding, and a CSM in one annual contract, especially if they need SMS or WhatsApp. Amplemarket fits rep teams that want data, buying signals, sequences, and a dialer in one platform.

Teams selling at $5K-$100K ACVs who want outreach done for them on quarterly terms get more from Agent Frank.