AiSDR vs 11x, and Who Actually Answers Your Replies
11x runs its own sending and adds AI voice calls. AiSDR uses your domains and starts faster and cheaper. Here is how they compare on channels, setup, and replies.
What is the difference between AiSDR and 11x?
Both write and send outbound for you. 11x runs its own sending infrastructure and sells itself as an autonomous digital worker, with AI voice calls in the product and enterprise deliverability as the pitch. AiSDR plugs into domains you own and is the faster, cheaper start. They differ most on who handles the prospect who replies at 8am asking what the price is.
That difference shows up in setup too. Because 11x operates its own sending while AiSDR integrates with user-supplied domains, 11x is quicker to switch on and AiSDR gives you control over the domains, the warm-up and the reputation. If you have spent a year getting three sending domains clean, handing that to a vendor's shared infrastructure is a real decision.
What does each one actually send?
Email is the main channel for both. 11x adds AI voice calls, which neither AiSDR nor Gelee does, and that is the single clearest feature gap between the two. AiSDR is email-first with LinkedIn steps around it. Gelee sends on LinkedIn only: connection requests, first messages, follow-ups, replies and comments.
| AiSDR | 11x | Gelee | |
|---|---|---|---|
| Primary channel | Email, LinkedIn steps | Email, AI voice | LinkedIn only |
| Sending infrastructure | Your domains | 11x operates its own | Your LinkedIn accounts |
| List building | Built live at send time | Standing database | Your ICP plus post commenters |
| Who answers replies | Your team | Your team | AI, in your voice |
| Setup | Self-serve start | Enterprise onboarding | 15 minutes, demo call first |
| Pricing | Built for teams with real outbound ops | Called expensive on Reddit | Custom |
Who answers when someone replies?
You do, in both cases. Both tools are excellent at getting a message in front of a stranger and neither closes the loop from "interested, tell me more" to a meeting on the calendar without a human in the thread. That human is usually a founder checking an inbox between calls.
This is where an AI SDR either saves you time or moves it. A tool that sends 3,000 emails and produces 30 replies has handed you 30 conversations. Each one runs four to six messages. At three minutes a message, that is six to nine hours a month of you typing, and the replies arrive on the prospect's schedule.
How much time does reply handling actually take?
Run our LinkedIn benchmarks through a month. 25 invites a day across 20 working days is 500 invites. At a 20 to 30% accept rate, that is 100 to 150 new connections. At a 12 to 18% first-message reply rate, 12 to 27 people write back, and follow-ups add another 5 to 8%.
Call it 25 live conversations. Five messages each at three minutes is 375 minutes, so a little over six hours. At $100 an hour that is $600 of your month on top of whatever the tool charges. The 3 to 5% overall meeting rate turns those 500 invites into 15 to 25 booked calls.
Six hours does not sound bad. It is not six blocked hours. It is 40 interruptions spread across 20 days, and every one lands while you are doing something else.
Where do the leads come from?
11x draws on a standing database. AiSDR builds each list at send time, and AiSDR's own comparison page frames that as fresher signals, which is exactly what you would expect its own comparison page to say. 11x counters with data coverage. Both claims are marketing until you run the same ICP through each.
The test that settles it costs nothing. Ask both for 200 contacts matching one narrow ICP, then check the same 20 records by hand: title still current, company still that size, email deliverable. Bounce rate and title drift are what you are buying or not buying.
Which one costs more to run?
Neither publishes a number you can compare in a spreadsheet. Buyers do the comparing for them: on r/SaaS, the first answer to someone hunting an 11x alternative is that 11x is expensive, and a separate r/Entrepreneur thread describes AiSDR's pricing as built for teams with real outbound operations.
So the sticker is a demo call in both cases. The line item you can calculate now is the reply hours above. Six to nine hours a month at $100 is $600 to $900, and that number does not move when you switch vendors, because neither vendor takes the conversation off you.
Does either one do LinkedIn properly?
Both include LinkedIn steps, and both treat it as a supporting channel next to email. If LinkedIn is where your buyers actually are, that matters. LinkedIn does not publish a daily invite limit, and it moves with account age and how people respond, so volume has to be managed per account rather than set once in a sequence.
Safe volume on a warm account is 20 to 25 invites a day. A new account should start at 5 to 10 and climb over two or three weeks. Before you send any of them, the profile is what people check after the invite arrives, and a headline that reads like a job title costs you accepts. The LinkedIn headline rewriter fixes that in a couple of minutes.
There is also the warmest list on LinkedIn, which is people who commented on a post in your space this week. Gelee's Post Commenters preset DMs them and then replies publicly once the DM is confirmed sent. Neither AiSDR nor 11x does that.
Who should buy AiSDR, who should buy 11x, and who should buy neither?
Buy AiSDR if you are a 10 to 50 person SaaS company with an SDR or two, your own sending domains, and email as the channel that already works. It starts fastest and it is the cheaper of the two.
Buy 11x if you are enterprise, you want voice calls in the same system as email, and you have people whose job is to run it. It is the most autonomous of the two on paper and the heaviest to operate in practice.
Buy neither if you are a founder with no SDR. A tool that generates 30 conversations a month and hands all 30 to you has added a queue, not removed one.
Gelee is the wrong choice if you need 3,000 emails a month or AI voice calls. We are LinkedIn-only, there is no self-serve signup, and you cannot swipe a card at 11pm and start. Setup takes 15 minutes, after a demo call.
So which is better, AiSDR or 11x?
For a mid-market team with an outbound function already running, AiSDR. For an enterprise buying voice and email in one platform with onboarding attached, 11x. Both send well. Neither answers for you, and the six to nine hours a month that leaves behind belongs on your side of the comparison.
If those hours are the reason you are shopping, the question is not which sequence builder to buy. Our rundown of the AI SDR market in 2026 covers who does what, and the enterprise case for 11x is worth reading before you sit through their demo.