Short answer
11x sells AI agents for outbound, inbound and expansion on many channels, including voice, with its own database of 400M contacts. Mach researches the companies you bring, shows a source for every fact and asks you to approve each message by default. Choose 11x for voice agents and inbound chat, and Mach to check every fact and message at a published price.
At a glance
The 11x column uses 11x's own words, from the pages listed under Sources. We checked them on 16 October 2026.
| Mach | 11x | |
|---|---|---|
| What it is | One AI sales teammate for B2B teams that sell software and software services. | "AI Agents for Outbound, Inbound & Expansion" |
| Where leads come from | The companies you bring, from your CRM or a file. Mach doesn't sell lists. | "Bring your own leads from your CRM or use our database of 400M contacts." |
| Who approves messages | You approve each message by default. You can let Mach send some steps on its own. | Not stated. 11x says it "picks the play and handles prospecting, research, personalization, and multi-channel execution." |
| Channels | Email, LinkedIn and WhatsApp. No AI phone calls. | Voice, chat, email, social, SMS and WhatsApp, and a dialer for your reps. |
| Inbound | Not offered. Mach works on the companies you choose. | Website chat and voice agents that qualify inbound interest. |
| Sources for facts | Every fact shows where it came from. | Not stated. |
| Price | Published: $1,000 a seat a month, with research for 50 companies a seat. | Not published. The site offers a demo. |
| Security | Audit log, roles, and a separate permission to read meeting notes and imported email. | SOC 2 Type II and CASA Tier 3. |
Where 11x is stronger
- Voice. 11x runs AI phone agents. Mach writes the call script, and a person dials.
- Inbound. 11x answers website visitors and inbound calls. Mach doesn't.
- Data. 11x has its own contact database. Mach researches only the companies you bring.
- Languages. 11x says it writes "in your prospect's language".
- Proof. 11x publishes case studies with numbers. Mach has no public customer outcomes yet.
Where Mach is stronger
- You approve each message by default. 11x's pages don't say a person approves messages before they go.
- Every fact has a source, so you can check a claim before it reaches a buyer.
- Mach publishes its price. 11x doesn't.
- It learns your business first. The Brain holds what you sell, the pain points it solves, your ICPs and your case studies.
- Scores you can check. A fixed formula sets fit and intent. The AI doesn't pick the number.
Which one to choose
Choose 11x if you want AI to answer inbound interest and make calls, across many channels and languages.
Choose Mach if you sell software or software services and already know your accounts. It suits teams that want a person to approve each message, with a source behind every fact.
How we checked
We read 11x's own pages on 16 October 2026 and quote them. We didn't check 11x's customer numbers. Products change, so if anything here is out of date, email vaibhav@nuvio.dev and we'll fix it.
Sources
Checked on 16 October 2026.