An AI inbound SDR does the inbound half of a sales development rep's job autonomously: answer the lead, qualify it, enrich it, score buying intent, route it, book the meeting. The category got crowded in 2025 and consolidated hard in 2026, so most roundups you will read are stale. This one is current as of June 2026, and it is written by a vendor in the category, which you should weigh as you read.
How we judged
- Channels covered. Inbound arrives by web form, email, chat, and phone. A tool that covers one of the four leaves the rest leaking.
- CRM fit. Several leading tools are now effectively single-ecosystem. Your CRM decides your shortlist.
- Qualification depth. Form-field filtering versus real enrichment and buying-intent scoring.
- Pricing transparency and time to live. Published numbers and pilot terms versus custom enterprise quotes.
1. Qualified (Piper): best for Salesforce enterprises
Piper is the most established product in the category: strong website conversion, deep pipeline reporting, a polished buyer experience. Salesforce completed its acquisition of Qualified in April 2026, which makes the direction unambiguous: it is built for Salesforce-based revenue teams, and it will integrate deeper into that stack every quarter. Pricing is custom annual contracts through sales. If Salesforce is your system of record and you are buying within the Salesforce ecosystem, start here. One design note worth weighing: Piper is a human-styled AI with a name and a face, and peer-reviewed research finds that making software more human-like increases eeriness, which reduces trust and purchase intention. Buyers reward transparent, fast, and competent over lifelike. Our full comparison: LUPO vs Qualified.
2. LUPO: best for HubSpot and mixed-CRM teams, and for phone
Ours, so apply the disclosure. LUPO is the AI inbound SDR that covers all four channels with one brain: web forms called back inside sixty seconds, emails answered personally, chat handoffs carried to a booked meeting, and calls answered on the second ring. Every lead is enriched (firmographics, technographics, decision-maker title) with live company-signal data and scored for buying intent using triggers like funding, M&A, and leadership hires. It syncs natively to HubSpot and Salesforce, and to any CRM reachable by webhook. Pricing is public: 3,000 to 15,000 USD per month, 30-day founder-led pilot, live in 4 to 8 weeks. The fastest way to judge it is to talk to it on our homepage, right now, in your browser.
3. Conversica: best for persistent follow-up at scale
Conversica's Revenue Digital Assistants helped define this category. Their strength is durable, two-way conversations over email and SMS across very large lead databases: following up on every MQL, reactivating dormant pipeline, working event lists for months without fatigue. Publicly reported pricing starts around 2,999 USD per month on annual contracts, and it integrates with Salesforce, HubSpot, and Marketo. If your problem is a warehouse of unworked leads rather than a leaky front door, Conversica is the specialist. Comparison: LUPO vs Conversica.
4. Intercom Fin: best when inbound is support-heavy
Fin is the strongest AI agent in customer service, publicly listed at 0.99 USD per resolution. It belongs on this list because for many companies the inbound queue is mostly support, and routing those conversations well is half the qualification battle. Fin resolves the support side; a sales-side qualification layer takes the buying conversations. The two compose cleanly: Intercom chat can hand sales-intent visitors to a tool like ours. Comparison: LUPO vs Intercom Fin.
5. 11x: when the real gap is outbound, not inbound
11x builds AI digital workers, and its flagship, Alice, runs outbound end to end: prospecting, personalized outreach, reply handling, and booking over email and LinkedIn. Publicly reported pricing starts around 5,000 USD per month with significant first-year minimums. If your diagnosis is "we need more pipeline" rather than "we waste the pipeline we get," you are shopping outbound, and 11x is the name to evaluate. Many teams eventually run both motions. Comparison: LUPO vs 11x.
A note on Drift
Drift defined conversational marketing and a lot of teams still run it. Salesloft acquired it in 2024, and in March 2026 a gradual sunset was publicly reported. If you are a Drift customer planning a migration, the practical guidance is in LUPO vs Drift: replace the job, which was pipeline, rather than the widget.
The summary table
- Qualified (Piper): Salesforce enterprises, website-centric, custom annual pricing.
- LUPO: HubSpot and mixed stacks, phone + email + web form + chat, 3,000 to 15,000 USD per month, public.
- Conversica: large-database follow-up and reactivation, email and SMS, from about 2,999 USD per month.
- Intercom Fin: support-heavy inbound, 0.99 USD per resolution, pairs with a sales-side layer.
- 11x: the outbound gap, email and LinkedIn, from about 5,000 USD per month.
Three questions that decide it
- Where does your inbound actually arrive? Pull last month's numbers. If a meaningful share is phone or email, a website-only tool leaves it on the floor.
- What is your CRM? Salesforce shops have an obvious default. HubSpot and mixed shops should shortlist the CRM-flexible tools: see Qualified alternatives for HubSpot teams.
- Is the pain too few leads, or too much noise? Too few is an outbound problem. Too much noise reaching reps is exactly the inbound qualification job: 73% of B2B leads arrive before they are sales-ready (MarketingSherpa), and reps spend barely a quarter of the week selling (Salesforce, State of Sales).
Whichever you demo, ask to see the qualification decisions themselves, with reasons, on your own leads. Any tool in this category should be able to show its work.