Blog/Comparison
The best AI SDR tools in 2026
What an AI SDR does, what to check before buying, and how Postbly, Artisan, 11x, AiSDR, Gojiberry and lemlist compare on price and channels.
In short
An AI SDR is software that does the work of a sales development rep: it finds prospects, researches them, writes outreach and follows up. The main choices in 2026 are Postbly and Gojiberry for small teams who want a fixed monthly price, Artisan and 11x for larger teams buying through a demo, AiSDR for paying per person reached, and lemlist for teams who want to stay in control of sequences. The right pick depends on your volume and on how much you want a person to review. We make Postbly, so weigh that entry accordingly.
What does an AI SDR actually do?
The term covers a range of products, from a writing assistant inside a sequencer to an agent that runs outbound end to end. A full AI SDR handles most of these jobs:
- Finding leads from a database, or from buying signals.
- Researching each person and company before writing.
- Writing messages for email, LinkedIn or both.
- Sending and following up on a schedule.
- Handling replies, or passing them to a person.
- Booking meetings once someone is interested.
Vendors differ most on the first and the last two. Plenty of tools write competent emails. Fewer pick the right people, and fewer still handle replies well.
The tools at a glance
| Tool | What it is | Price | Channels | Buy without a sales call? |
|---|---|---|---|---|
| Postbly | Agent from ICP to outreach | $79 a month | Email, LinkedIn | Yes |
| Artisan | Autonomous AI BDR, Ava | Credit-based, tiers not shown publicly | Email, dialer | No figures published on the page we read |
| 11x | Agents for outbound, inbound and expansion | By demo | Voice, chat, email, social, SMS, WhatsApp | No |
| Gojiberry AI | AI prospecting agent on warm signals | $99 a month | Email, social | Yes |
| AiSDR | Pay-per-person AI SDR | $1.50 per person prospected | Email, LinkedIn | Yes |
| lemlist | Multichannel sequencer with AI | $87 per user a month, billed yearly, on Multichannel | Email, LinkedIn, calls, SMS | Yes |
Postbly
Postbly reads your website and writes your ICP, finds people through buying signals, scores each lead, and writes email and LinkedIn messages that send from your own accounts. It costs $79 a month, and you can run it from its own sales agent or from Claude Code and Codex. It is a new product with no free trial, no CRM sync and no team seats.
Best for: founders doing their own sales who want to approve what goes out.
Artisan
Artisan describes Ava as an autonomous AI BDR that runs outbound end to end: finding and enriching leads, writing and sending outreach, handling replies and booking meetings. It lists 250M+ verified contacts, and offers human oversight through approvals and escalation rules. Pricing is credit-based, scoped to lead volume, mailboxes and dialer seats.
Best for: teams that want one vendor to replace several tools, and that are comfortable with a sales process.
11x
11x sells agents across outbound, inbound and expansion, on voice, chat, email, social, SMS and WhatsApp. Its outbound agents research accounts and write messages across channels, and its inbound agents promise a response in under 60 seconds. Every route on the site leads to a demo, and no price is listed.
Best for: larger revenue teams who want voice and inbound along with outbound.
Gojiberry AI
Gojiberry AI works from warm leads, using 15+ buying and social signals. The Pro plan at $99 a month includes two AI agents and up to 1,800 prospects contacted a month, plus website visitor identification, a unified inbox and integrations with HubSpot, Pipedrive, Attio and Claude.
Best for: small teams who want signal-led outreach with CRM connections included. There is more detail in our Gojiberry alternatives comparison.
AiSDR
AiSDR charges $1.50 per person prospected, billed daily, and states that you pay only for people you reach. That includes lead finding, live signals, email and LinkedIn outreach, and email infrastructure. Team plans for 1,000+ contacts a month are priced on volume.
Best for: low or uneven volume, or a trial campaign without a contract.
lemlist
lemlist sits between a sequencer and an agent. Multichannel costs $87 per user a month on yearly billing, with LinkedIn automation, SMS and calling. Buying intent signals and lead data are add-ons.
Best for: teams who want AI help but prefer to design their own sequences.
What to check before you buy
Demos tend to look alike. These questions show the differences.
- Where do the leads come from? A static database and live signals produce very different timing.
- Can you see the reason for each lead? If nobody can explain why a person was chosen, the message will not be able to either.
- Who approves what goes out? Decide whether you want every message reviewed, a sample, or none.
- Whose accounts send? Your own mailbox and LinkedIn carry your reputation, so ask how sending volume is limited.
- What happens to replies? Find out which replies are answered automatically and which reach you.
- What is the real monthly cost? Add data, mailboxes, seats and overage to the headline price.
- What is the contract? Monthly and annual commitments carry very different risk for an unproven channel.
When an AI SDR is the wrong choice
An AI SDR will not fix a weak offer or an unclear market. If you cannot say who buys and why, more outreach only spreads the confusion faster, so start with your ideal customer profile. Very large deals with a handful of named accounts also tend to reward personal research over automation.
Common questions
What does AI SDR mean?
AI SDR stands for artificial intelligence sales development representative. It is software that takes on the prospecting work of an SDR: finding leads, researching them, writing outreach and following up.
How much does an AI SDR cost?
Among tools with public prices here, fixed plans run from $79 to $99 a month, and usage pricing is $1.50 per person prospected. Artisan and 11x do not publish prices on the pages we read.
Can an AI SDR replace a human SDR?
It can take over the repetitive parts, such as list building and first drafts. A person is still useful for judging fit, handling complex replies and building the relationship. Most small teams use one to cover work they had no one to do.
Do AI SDRs work on LinkedIn?
Several do, including Postbly, AiSDR and lemlist. LinkedIn limits how much any account can send, so volume there stays low compared with email.
Sources
Prices and features retrieved November 5, 2026, from each vendor's own pages. Confirm before you buy.