Answer every lead.
Remember every contact.
AiSDR is built to spin up net-new cold outbound fast — a huge contact database, website de-anonymisation, LinkedIn and email sequences — but it has no memory of anyone it contacts. Relai answers your new leads in seconds and works every contact in your CRM, remembering each one and selling like a closer rather than blasting templates.
AiSDR sends messages. Relai knows the contact.
AiSDR fills the top of the funnel with cold prospects it has no record of. Relai answers new leads in seconds and works every contact in your CRM — reactivating, qualifying and nurturing, with memory and real sales technique.
Knows the contact, doesn't just spray
AiSDR's core is net-new cold outbound with no memory. Relai answers your new leads in seconds and works every contact you own — knowing each one, the cheapest pipeline you'll ever work and the least likely to burn your domain.
It remembers every contact
AiSDR personalises from per-message research, then moves on. Relai keeps a persistent profile of each lead that compounds over time.
A human closes, prepped by AI
AiSDR leans on AI voice notes and sequences. Relai puts your rep on the call with a full brief and every objection pre-handled — people buy from people.
Relai vs AiSDR, side by side.
Every row below is where an engine that answers new leads in seconds and works every contact you already own — with memory and real sales technique — pulls ahead.
| Capability | Relai | AiSDR |
|---|---|---|
| Speed-to-lead on new leads + works your whole database | ✓Answers new leads in seconds AND reactivates, nurtures & qualifies every existing contact — with full context on each | –Built for net-new cold outbound from a 700M-contact database |
| Cross-contact memory | ✓A persistent, per-contact learned profile that compounds across every channel | –No persistent cross-contact memory |
| Trained in real sales technique | ✓Trained in real closing technique — anchor on what they want, reframe on value, defuse objections | –Research + templated sequences, not trained sales technique |
| Decides who to contact, and when | ✓Reads the signals and decides who to reach and when — nothing to hand-build | –You build the sequences; it runs them |
| Autonomous WhatsApp + email conversations | ✓Converses autonomously on WhatsApp + email, in your rep's own voice | ~Email, LinkedIn and SMS — no WhatsApp |
| A real, prepped human on the call | ✓Human-led: a full brief + objection handling, then click-to-call — people buy from people | –AI voice notes / Aircall add-on — no prepped human on the call |
| Sits on top of your CRM — no migration | ✓Sits on top of your CRM — read-only start, nothing to migrate, connects in a day | ~HubSpot and Salesforce only |
| Setup & commitment | ✓Live in a day, month-to-month, no annual lock-in | ~Built around a large cold-contact database subscription |
✓ built for it · ~ partial / add-on · – not really. Competitor facts are our best read of public 2026 information — check the latest with AiSDR directly.
When AiSDR might be the right call.
If your goal is genuinely cold prospecting — opening brand-new accounts that aren't in your CRM yet — AiSDR's built-in contact database, website de-anonymisation and LinkedIn sequencing are a real strength, and that's its lane. Relai plays a different game: it works the warm database you already paid to acquire, remembers every contact, sells with real technique, and keeps a human on the close. If most of your untapped pipeline is already sitting in your CRM (it usually is), that's where the engine pays for itself — without the deliverability risk of high-volume cold sending.
Questions, answered.
No — and that's deliberate. Relai works the contacts already in your CRM: answering inbound in seconds, reactivating dormant leads, and qualifying. It's the warmest, cheapest pipeline you have, worked continuously.
Yes — Sequences and Campaigns reach out across WhatsApp and email, but to the people in your database, personalised and in your rep's voice, rather than spraying purchased cold lists.
High-volume cold sending is what damages domain reputation and lands you in spam. Working warm, opted-in contacts in your CRM keeps your sending healthy while still growing pipeline.
See why teams move to Relai.
Get a Live Demo and watch the engine work your own CRM — memory, real sales technique and every channel, with a human closing. You keep your CRM. We make it work.