AI SDR agents
Supported Supported Supported Supported Partial support
Instantly
4.8(4,131 G2 reviews)Sheridan, USAFounded 2021
Instantly turns leads into clients with Automated Outreach, Deliverability Network, Sales Engagement, B2B Lead Database & AI-Powered CRM. Find your leads, create your campaigns, connect your sending accounts, and watch those leads turn into customers - with one, flat-fee subscription. Founded in 2021, Instantly is the leading sales engagement platform used by more than 35,000 customers, from solopreneurs to global agencies. Our goal is to be the simplest tool on the market to make money with cold email.
Overall scoreFive points for every passed standard task. Missing or failed tasks earn zero.
Not evaluated
G2 task evaluationScores based on G2's standardized task evaluation, separate from buyer reviews.
AccuracyNot available
Policy complianceNot available
G2 buyer reviewsAggregate scores reported by verified G2 reviewers. These do not affect the task-based Overall Score.
Ease of use94
Quality of support95
Estimated autonomyA sourced estimate of how independently the agent can plan and complete work on the L1–L5 scale.
Where this agent sits on the L1–L5 autonomy scale.
L4
L1L2L3L4L5
Skills
The five shared skills reviewed for products in this category.
Qualification & Routing Judgment
Handoff & Execution Fidelity
Reply & Objection Handling
Sequencing & Policy Compliance
Performance claims
Vendor-reported4X Increase in reply rates
Frontier skillsEmerging agent capabilities explicitly documented in reviewed product sources.
Autonomous reply and objection handling + books directly in Calendlyyes
What G2 reviewers say
AI-generated Pros and Cons based on aggregate themes from verified G2 buyer reviews, not individual review quotes.AI-generated from verified G2 buyer reviews.
Pros
Users frequently mention the high email deliverability, the ease of initial setup, the powerful functionality, and the helpful and responsive customer support as standout features of Instantly.
Cons
Reviewers experienced issues with the AI agent's accuracy, high cost for beginners, the need for additional tools for lead generation, and non-native integration with other CRMs.