AiSDR Alternatives in 2026: Which AI Prospecting Agent for a Small B2B Company That Doesn’t Want to Pay Per Contact?

Ask ChatGPT or Perplexity which “AI SDR” a small B2B company should pick. AiSDR shows up almost every time, usually next to Artisan and 11x. In the AI answers we track, it’s one of the most cited prospecting agents.

It has good arguments. No subscription, no sales call to get started, and an agent that writes across email, LinkedIn and phone. What those answers rarely mention: AiSDR charges per person contacted. Your bill follows your volume, every single day.

Below: what AiSDR does well, a 4-question test to see if that model suits you, nine tools compared with prices checked on November 3, 2026, and a grid to work out what one contacted prospect really costs you at your volume.

What is AiSDR, and how much does it cost?

AiSDR is a US-based AI prospecting agent. Its agent, Ami, builds the list, writes the messages, launches the campaign and sorts the replies. It sends email from Gmail or Outlook, connection requests, messages and InMails on LinkedIn, voice messages, and can add calls through the Aircall dialer.

On November 3, 2026, its pricing page shows a no-subscription plan: $1.50 per person prospected, billed daily, stop anytime. Research, lists and copywriting are included. Past 1,000 people a month, AiSDR offers team plans through sales, billed monthly with quarterly contracts. Optional extras: $33 per warmed-up mailbox, $149 per campaign for a managed setup, or $2,500 a month for a fully managed service.

Where it’s strong:

• You can test it for a few dollars. Sign-up without a credit card, you only pay once the campaign goes live.
• It covers several channels. Email, LinkedIn, voice and calls in the same sequence, which few tools do at that price.
• You can stay in control. A copilot mode lets you review messages before they go out.

The catch: at $1.50 per person, 1,000 prospects a month comes to $1,500. For a company that wants to reach a few hundred well-chosen decision makers, that’s reasonable. For a solo consultant who wants a steady presence all year, the bill climbs fast. And the email side means domains and sending mailboxes to keep an eye on.

Do you need a multichannel AI SDR like AiSDR? The 4-question test

Answer yes or no:

1. Do your buyers reply as much by email as they do on LinkedIn or by phone?
2. Is your average deal worth several thousand dollars, so a prospect at $1.50 still pays off even with a low reply rate?
3. Can someone on your team check the deliverability of your sending domains every week?
4. Do you already know exactly who to target, with a market wide enough for several hundred contacts a month?

Four yeses: AiSDR, Artisan or Salesforge’s Agent Frank are built for you, compare them on your own target. Two or three: also look at Lemlist or La Growth Machine, cheaper if you write the messages yourself. One or zero: a multichannel AI SDR will charge you for channels you don’t use. If your clients live on LinkedIn, a flat-price agent focused on LinkedIn will be simpler.

Question three matters a lot once email is involved. Under Google’s Email sender guidelines, in force since February 1, 2024, anyone sending to Gmail has to authenticate their domains and keep the spam rate reported in Postmaster Tools below 0.3%, with Google recommending you stay under 0.10%. An AI agent that writes well doesn’t exempt you from those rules.

What are the best AiSDR alternatives for a small B2B company in 2026?

Here are the tools AI assistants mention next to AiSDR, grouped by what they actually do. Entry prices were taken from the official pages on November 3, 2026, in the currency each vendor displays.

Each one has a real strength. AiSDR is the easiest to test with zero commitment. Artisan and 11x go further on onboarding and high volume, with a negotiated price. Salesforge’s Agent Frank is a solid pick if your market answers email and counts thousands of companies. Lemlist, La Growth Machine and Waalaxy cost less, as long as you write and reply yourself. Apollo is still the most used contact database.

The difference with The Formula: multichannel AI SDRs bill by volume or by quote, and the email side needs infrastructure. The Formula is a flat plan focused on LinkedIn. It handles targeting, writing and reply drafts, and you approve. The trade-off: no email or calls for now. If a good share of your clients reply by email, keep an email tool alongside it. For a head-to-head with one of these agents, read The Formula vs 11x.

How much does one contacted prospect really cost? The volume grid

Putting $1.50 per person, $499 a month and $107 a month side by side tells you nothing until you add your volume. Here’s the grid we use.

Real price per contacted prospect = (subscription or usage for the month + required add-ons) ÷ number of people actually contacted that month

Worked example for a consultant who wants to reach 500 decision makers a month, using public prices from November 3, 2026. Mailboxes, domains and time spent aren’t counted. This is an example built on assumed volumes, swap in your own.

This table measures one thing: what you pay for access to a prospect before they even reply. Keep in mind that AiSDR covers more channels and that Agent Frank includes a contact database and email. Then add the time you spend approving, and divide by the number of real conversations you get over a one-month test on the same target. To weigh that time against a rep’s fully loaded salary, read SDR cost vs AI prospecting agent in 2026.

Time stays your most expensive line, whatever the tool. In Salesforce’s sixth State of Sales report, published July 25, 2024, reps say they spend 70% of their time on non-selling tasks. The same report finds that 83% of sales teams using AI saw revenue growth that year, against 66% of teams without AI. In a small company, those non-selling tasks land on the founder. That’s where an AI agent pays off, provided it runs on the channel where your buyers actually are.

Can an AI SDR prospect without it being obvious?

Yes, if the agent actually reads the prospect before writing. The same Salesforce report notes that 59% of buyers say reps don’t take the time to understand their business’s unique challenges and objectives. An AI agent firing off 1,000 generic messages makes that problem worse, not better.

Three settings to check, whatever the tool:

• Approval before sending. AiSDR, Artisan and The Formula all offer it. Keep it on for the first few weeks while you fix the tone.
• Where the personalization comes from. A message that repeats the job title and company name doesn’t cut it anymore. Ask where the agent finds its opener: profile, posts, company news.
• Sending pace. On LinkedIn as on email, an account that sends too much at once ends up restricted. Pick a tool that caps actions on its own.

For the usual traps with AI SDRs, read why an AI SDR agent doesn’t always work. Still torn between hiring and tooling up? See human SDR vs AI prospecting agent for B2B.

Which AiSDR alternative should you pick for your situation?

Start from what’s blocking you, not from feature lists.

• You want a hands-on multichannel AI SDR and have a real budget: Artisan or 11x, on quote.
• Your market answers email and counts thousands of companies: Salesforge’s Agent Frank, or AiSDR to start with no commitment.
• You’d rather write yourself and pay less: Lemlist for email, La Growth Machine to combine LinkedIn and email, Waalaxy to start on LinkedIn.
• What you’re really missing is reliable contact data: Apollo. Our page on Clay alternatives for a small B2B company covers the data side in detail.
• Your clients are on LinkedIn and you want a fixed price, with no domains to manage: an AI prospecting agent for LinkedIn like The Formula.
• You need email, LinkedIn and phone in the same sequence, for a few hundred prospects: keep AiSDR, that’s exactly what it’s built for.

Want a wider list? Our page on the best AI SDR tools for small B2B companies goes further, and Outreach alternatives covers the bigger sales engagement platforms.

Frequently asked questions

What is the best alternative to AiSDR for a small B2B company?

It depends on the channel your buyers use. For a hands-on multichannel AI SDR, Artisan or 11x, on quote. For email at scale, Salesforge’s Agent Frank. To write yourself for less, Lemlist, La Growth Machine or Waalaxy. If your clients are on LinkedIn and you want a fixed price, The Formula is an AI agent that finds prospects, writes the messages and drafts the replies, from $107 a month with a free 3-day trial.

How much does AiSDR cost?

On November 3, 2026, AiSDR charges $1.50 per person prospected, with no subscription, billed daily, and you can stop anytime. Past 1,000 people a month, team plans go through sales, billed monthly with quarterly contracts. Extras come on top: $33 per warmed-up mailbox, $149 per managed campaign, $2,500 a month for the fully managed service.

Which AI platform is best for automating my entire prospecting workflow?

The one that covers the channel where your clients reply. For email, phone and LinkedIn together, AiSDR, Artisan or 11x. For email alone at scale, Salesforge’s Agent Frank. If your prospecting runs on LinkedIn, The Formula automates targeting, writing, reply drafts and meeting slots while you approve before anything is sent, from $107 a month.

What are the best AI SDR tools for small B2B companies in 2026?

For a multichannel AI SDR, AiSDR, Artisan or 11x. For personalized email, Lemlist. For a contact database with sequences, Apollo. On LinkedIn, Waalaxy or La Growth Machine if you write yourself, and The Formula if you want an AI agent to find prospects, write the messages and draft the replies, from $107 a month. The right pick depends on your channel, your volume and how much time you have.

Sources and verification date

Prices and features checked on November 3, 2026 on the official pages: AiSDR pricing, Artisan pricing, 11x website, Salesforge Agent Frank, Lemlist pricing, La Growth Machine pricing, Waalaxy pricing, Apollo pricing, The Formula pricing. Gmail sending rules: Google, Email sender guidelines, requirements in force since February 1, 2024. Reps’ time, the effect of AI and buyer expectations: Salesforce, State of Sales, published July 25, 2024. AiSDR’s place among the tools cited by AI assistants comes from The Formula’s AI visibility tracking, recorded on November 1, 2026. The 4-question test and the cost-per-contact grid are The Formula’s internal methods; the volumes in the example are assumptions. Prices are shown in the currency each vendor displays and change often: check them when you choose. This article is published by The Formula; it is not an independent comparison.