The best AI SDR tools are Otto, where the send step pauses for your decision and the method is published code you can open, 11x's Alice, for a vendor-run agent across six channels, and Artisan's Ava, for one vendor consolidating the whole outbound stack. This is a large, contested category: Fortune Business Insights, MarketsandMarkets and The Business Research Company each size the AI SDR market between $4.27B and $5.81B for 2025/2026, with CAGRs of 21.2% to 32.3% across the three reports.
How we judged these AI SDR tools
We compared what each tool actually does with a message before it sends, whether the targeting and messaging logic is something you can open and change, and what's published about price. No tool here wins on every count, Otto included.
The 3 best AI SDR tools
Otto
At a glance:
Price: Not published.
Best for: A buyer who wants the sequence and send steps to wait for a decision, with the research and targeting method published as 91 MIT-licensed commits in Otto's open-source predecessor, autogtm.
Cons: Needs a Claude subscription already running, and has no published price.
11x (Alice)
At a glance:
Price: Not published on 11x's own site, as read October 5, 2026.
Best for: A buyer who wants a vendor-run agent dispatching across email, phone, chat, social networks, SMS and WhatsApp at once, per 11x's own site.
Cons: 11x's stated outcomes, a 1.5x increase in qualified meetings, $1M+ pipeline in the first three months, are the company's own figures, not independently measured, and no price is published.
Artisan (Ava)
At a glance:
Price: Not published on Artisan's own site, as read October 5, 2026.
Best for: A buyer who wants one vendor running data, enrichment, deliverability, sequencing, dialer and intent signals as a single platform, per Artisan's own description.
Cons: The targeting and messaging logic runs inside Artisan's platform rather than in files the buyer can edit, and no price is published.
Do AI SDRs actually book meetings, or is it email automation with extra steps?
11x's own site states Alice drives "qualified meetings" and builds "pipeline," with a stated 1.5x increase in qualified meetings and $1M+ in pipeline in the first three months. Artisan's own site states Ava handles "booking meetings" as part of running outbound end to end. Both are the vendor's own stated outcomes, not a third-party measurement, our research found no independent source confirming either figure. Otto's own site states plainly that reply tracking isn't wired yet, so meeting outcomes aren't something it claims at all.
See 11x alternatives, Artisan alternatives, Clay alternatives, Apollo alternatives, or build it yourself with n8n.
Ready to see the research before anything sends? start with your website.
Frequently asked questions
How big is the AI SDR market?
Fortune Business Insights, MarketsandMarkets and The Business Research Company each size it between $4.27B and $5.81B for 2025/2026, with CAGRs from 21.2% to 32.3%.
Do 11x's and Artisan's meeting-booking claims come from an independent source?
No, both are figures the companies state about themselves; we found no third-party measurement of either.
Does Otto claim to book meetings?
No. Otto's own site states that reply tracking isn't wired yet, so meeting outcomes aren't something it currently measures or claims.
Which of these tools lets me change the targeting logic myself?
Otto's method is published as 91 MIT-licensed commits in autogtm; 11x's and Artisan's targeting run inside their own platforms.
Do any of these publish a price?
Not in our research, Otto, 11x and Artisan all have no published price as of this writing.
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