Honest comparison
SignalEngine vs 11x
11x is a ai sdr. SignalEngine is an agentic AI workflow for B2B outbound. Different jobs, so we lay out where each one earns its keep.
TL;DR
11x: Autonomous AI digital workers for outbound - Alice, the AI SDR, runs prospecting, research, personalized email and LinkedIn outreach and books meetings 24/7. SignalEngine: an agentic workflow that runs the whole discover, enrich, write, quality-gate and send loop itself, builds a proposal page and a per-prospect video for every email, and hands you LinkedIn, Reddit and Quora drafts to approve.
What 11x does well
We are not here to talk you out of a tool that fits. 11x is a genuinely strong product at what it is built for.
- A fully autonomous AI SDR (Alice) that handles the end-to-end cycle: prospecting, research, writing, sequencing, reply handling and meeting booking.
- Operates 24/7 across email and LinkedIn in 100+ languages, aimed at replacing several human SDRs with one digital worker.
- A companion AI phone agent (Julian) for voice outreach and customer interactions.
- Enterprise-grade positioning with dedicated onboarding for mid-market and enterprise sales orgs.
Side by side: seven dimensions
Every cell spells out what you actually get, not just a tick. Pricing figures are as of June 2026 and may change.
swipe the table sideways
| Dimension | 11x AI SDR | SignalEngine Agentic AI workflow |
|---|---|---|
| Channels | Email + LinkedIn run autonomously, plus an optional AI phone agent (Julian). | Email sent autonomously, plus LinkedIn / Reddit / Quora drafts (paid Social add-on) you approve in the Engine App and post from your own browser via a desktop companion. |
| Buying-signal detection | Research feeds the autonomous SDR, but no published per-prospect live-signal gate on the message. | Continuously scans for live buying signals (hiring posts, news, ad spend, review sentiment) and grounds every message in a current one. |
| Dossier enrichment | Autonomous per-lead research from its data layer. | Builds a full per-prospect dossier (tech stack, ad spend, review sentiment, decision-maker email and phone) before writing. |
| Quality gate | No published per-message quality-gate score before send. | Every drafted message is AI-reviewed and rejected if it scores below 70, so nothing weak reaches a prospect. |
| Cross-instance learning | No published cross-instance niche-learning equivalent. | Engines in the same niche share winning patterns through a hive-mind learning layer, so newer instances start smarter. |
| Per-prospect format | Personalized email / LinkedIn; no per-prospect video proposal page. | Builds a personal proposal page and a per-prospect video for every send, choosing video or text per lead. |
| Entry price | Enterprise; reported from ~$5,000/mo with high annual minimums. | Geo-detected pricing with a 72-hour card-required trial, 250 free seed leads and 50 credits - see the pricing section for your currency. |
Where each one fits
Reach for 11x when
- Mid-market and enterprise teams with budget to replace multiple SDRs
- Organisations wanting a 24/7 autonomous AI SDR plus an AI phone agent
- Buyers comfortable with annual enterprise contracts and onboarding fees
Reach for SignalEngine when
- You want the discover, enrich, write and send loop run for you, not another tool to operate.
- Every email should carry a personal proposal page and a per-prospect video, built before the send.
- You want social presence as LinkedIn, Reddit and Quora drafts you approve, never auto-posted.
- You are a marketing agency or a lean B2B team without a dedicated SDR seat.
SignalEngine vs 11x: FAQ
Is SignalEngine an 11x (Alice) alternative?
Only loosely. 11x sells Alice as an enterprise AI SDR digital worker priced from around $5,000/mo with annual minimums. SignalEngine is a self-serve agentic workflow for agencies and lean teams, transparently priced, where you approve every social draft and a quality gate scores each message. They automate similar outbound steps but serve very different buyers and price points.
How much does 11x cost in 2026?
As of June 2026, 11x is enterprise-priced - reported from roughly $5,000 per month on annual billing for a single digital worker, with first-year contract minimums commonly cited at $36,000-60,000+ plus implementation fees. Adding the Julian phone agent increases the base. SignalEngine instead offers transparent geo-detected self-serve pricing with a 72-hour trial.
Does SignalEngine call itself an AI SDR like 11x?
No - SignalEngine deliberately positions against the AI-SDR label. 11x markets Alice as a digital worker meant to replace SDR headcount. SignalEngine is an agentic workflow you own: it autonomously discovers, enriches, writes and sends email, but social posts stay as drafts you approve, and the operator keeps control rather than delegating to a worker.
See what an agentic workflow ships while you sleep
SignalEngine discovers prospects, enriches them, writes outreach on a real buying signal, quality-gates it, and sends. Pricing is on the pricing section.
72h trial · 250 free leads · we email you before we charge.