AI SDR tools compared: workflows, controls and costs

Your team has prospects to contact, research scattered across tabs, and follow-ups that depend on someone remembering to send them. An AI SDR tool can take on parts of that work. Choosing one starts with deciding where the work should happen, which actions need review, and who takes over when a prospect replies.

This comparison covers four options: Lineer, AiSDR, Artisan Ava and 11x Alice. The shortlist spans a CRM with agents and outbound platforms that connect to an existing CRM. It is intended to help you choose a pilot, rather than declare a winner for every sales team.

Disclosure: Lineer publishes this article and is one of the products compared. We reviewed official product pages and documentation on November 3, 2026. We have not run a controlled test of these products. Capabilities below describe what vendors document; fit recommendations are our assessment.

What is an AI SDR?

An AI SDR is software that performs parts of a sales development representative’s workflow, such as prospect research, message drafting, follow-ups and reply handling. The label alone does not tell you which steps are automated or how much oversight you retain.

For this comparison, the job is outbound prospecting: starting conversations with people who may fit your offer. Qualifying someone who has already requested a demo is a different workflow and deserves its own evaluation.

Before shortlisting AI SDR software, define one audience, one offer and one person responsible for replies. If you cannot explain why a prospect should care about the offer, start by speaking with prospects and refining that explanation. Automating an unclear message gives you more unclear messages to review.

Which AI SDR tools fit which workflow?

These are starting points for a shortlist. Validate the same workflow in each product before choosing.

Lineer: agents working inside your CRM

Lineer is an agent-first CRM. You choose outreach, nurture or research, set the audience and instructions, and inspect work in individual prospect threads. Research, messages and progress remain together. Tool access and approval requirements are separate settings, so you can allow research while requiring review of an email action. Lineer agents

This is worth evaluating when your problem includes keeping relationship context and outreach work together. If your team must keep another CRM as its system of record, map the records, ownership rules and activity history that need to move between systems before committing.

Pilot question: Can the person responsible for the relationship find the research, correct a draft and understand the next planned action without reconstructing the conversation elsewhere?

Example: from prospect research to an approved follow-up

Illustrative workflow with fictional people and companies. This is not a customer result or a hands-on comparison test. Email actions are configured to require approval in this example.

You sell supplier-review services and want to contact Alex, an operations manager at Northstar Supplies. Alex’s relationship context and outreach work stay together in Lineer as you move through these steps:

1. Set the direction. Choose the outreach agent, select your audience and ask it to research each company before drafting. Allow the research tools and require approval for sending email.
2. Inspect the evidence. In Alex’s prospect thread, review the finding that Northstar coordinates suppliers across several regions. Open the supporting source and check that it supports the claim. That fact does not establish that Northstar has a supplier problem.
3. Review the draft. Read the proposed introduction alongside the research. Replace an unsupported assumption about missed renewals with a question: “How does your team prepare supplier reviews ahead of renewal?”
4. Approve the message. Once the wording is accurate and relevant, approve the proposed email action. Mailbox limits and sending windows still govern when it sends.
5. Inspect the next step. Return to the same prospect thread to see the message history and planned follow-up. Review the next draft before approving it, or pause the thread if your priorities change.

The practical benefit is continuity: the evidence behind the introduction, your edits and the next planned action are available in the context of the same relationship. You can assess the next message without rebuilding the prospect’s history across separate tools. See Lineer’s research, approval and follow-up workflow

AiSDR: self-serve outbound with per-person pricing

AiSDR’s pricing page describes research-based messaging, email and LinkedIn outreach, reply handling and two-way HubSpot sync. Its self-serve offer bills per person prospected; Salesforce integration is listed under team plans.

Its approval documentation describes previewing sample sequences before launch. Live messages are personalized at send time and can differ from those samples. That distinction matters if your team needs to sign off on the exact wording each prospect receives. The documentation reviewed does not establish a per-message approval gate.

Pilot question: Do the live messages stay within your factual and tone requirements after you approve the samples?

Artisan Ava: outbound with supported rollout

Artisan describes Ava as an outbound product with automated replies and meeting booking. Its plans list Salesforce and HubSpot sync, onboarding and customer success support. Pricing is scoped to the plan rather than published as a fixed dollar amount.

Artisan’s Slack documentation says replies can require human approval and escalated drafts include lead context. That establishes a reply-review workflow. Confirm separately how approval applies to first-touch messages and scheduled follow-ups in your proposed configuration.

Pilot question: Can your team distinguish a reply that needs attention from routine campaign activity, and act on it promptly?

11x Alice: outbound with managed sending infrastructure

Alice’s Growth plan lists managed Gmail mailboxes, domain setup, warming, inbox rotation and bidirectional CRM sync. That makes it a candidate when you want sending infrastructure included in the outbound purchase.

The personalization documentation describes message review, approval workflows and autopilot. It says messages can be edited or overridden before sending. Those are documented controls to verify in the configuration you would buy.

Pilot question: Can you review the exact first touch and follow-up, then demonstrate what happens when a prospect replies or an account becomes an active opportunity?

Compare approval controls at the message level

A preview of a representative email answers a different question from approval of the exact email queued for a real prospect. Reply approval is another separate control.

The Sources section below lists the underlying documentation. An unanswered question here means the reviewed source did not settle it; it does not prove a feature is unavailable.

Use a test prospect and ask to see the sequence from research through approval to sending. Then introduce a correction, a negative reply and a pause. Check what remains queued, who can resume work and where the action history appears.

AI SDR pricing: compare the commitment and the unit

A seat, a person prospected and a unit of agent usage are different purchases. Compare the total cost of your intended workflow before calculating a headline cost per lead.

Lineer’s figure is a general cost estimate, not a fixed per-person tariff. Actual usage varies with research, messages and follow-ups. The US and Australian dollar amounts are Lineer’s approximate guidance, not a live exchange-rate conversion. Confirm the applicable CRM plan and total campaign budget.

Other vendors’ figures reflect public pricing checked November 3, 2026 and retain their displayed dollar symbol; confirm billing currency and taxes in your quote. These are not equivalent packages.

The 11x pricing page also lists a $36,000 annual starting price in its FAQ, which conflicts with the Growth card’s $3,750 monthly equivalent ($45,000 over 12 months). Request a written quote rather than choosing between those figures. AiSDR’s pricing page lists monthly billing with quarterly contracts for team plans; do not assume its self-serve terms apply to a team contract.

For each shortlisted tool, request a budget for the same audience size, channels, research depth and follow-up period. Include software, data, mailbox infrastructure and any services. Record your team’s setup, review and reply-handling time separately. A useful pilot should reveal the cost of running the workflow, including the work still done by people.

Run a pilot that answers a buying question

Start with a narrow segment you understand. Use an initial review set of about 20 prospects to inspect factual accuracy and workflow behavior. That is an operational check, not a statistically reliable performance benchmark.

1. Give each tool the same brief. Specify your offer, audience, approved evidence, excluded accounts, tone and stop rules. Avoid contacting the same people from multiple tools.
2. Check the research. Verify names, roles and the factual reason for reaching out. Record unsupported claims and how long corrections take.
3. Inspect the message. Check whether the research supports the proposed offer. A correct fact about a company can still be irrelevant to the reason for contacting it.
4. Test the handoff. Simulate interest, an objection, a request to stop and an account that already has an owner. Check what pauses and who receives the reply.
5. Measure work and outcomes separately. Track editing time, factual errors and review time alongside delivered messages, human replies, positive replies and attended qualified meetings. Define each outcome before launch.
6. Set the decision rule. Agree which failures stop the pilot, which need configuration changes and what evidence would justify expanding it.

For a larger outcome comparison, use comparable prospect groups, the same observation period and enough volume to assess uncertainty. Do not attribute a difference to the software when the audience, offer or sending conditions also changed.

Our outreach reply-rate analysis is useful context for separating human replies from positive replies. It is observational research, not evidence that one product beats another.

How to choose your next step

If you want CRM context and agent work in the same place, include Lineer in your pilot. If you want to retain an established CRM, start by checking how AiSDR, Artisan or 11x handles your required records, ownership and activity sync. If every outgoing message needs approval, make a demonstration of that exact control a condition of the evaluation.

The best AI SDR tools for your team are the ones that fit how you sell and leave you able to inspect the work. Choose two candidates, give them one clear workflow, and decide from the evidence your pilot produces.

To evaluate Lineer, start with the outreach workflow and bring your audience, approval requirements and existing CRM setup to the discussion.

Sources

Official vendor pages and documentation reviewed November 3, 2026.

• AiSDR pricing and plan scope
• AiSDR message previews
• Artisan plans
• Artisan reply approval
• Alice plan scope
• Alice personalization and approvals