Out of the best sales agent platforms, we considered 3 key workflows: outbound cold calls, incoming lead calls, and customer reactivation campaigns targeting old leads and at-risk customers. Each was assessed on the following criteria: conversation quality, CRM integration, depth of reactivation, total cost of sales agents at a high volume. 

If your sales pipeline is dependent on SDRs working through large cold call lists with hundreds of qualified leads stored away in your CRM, there is a misalignment in your sales automation process. The top-rated AI sales agents within this list can automate the entire calling, qualifying, reactivating, and logging process without needing any human input. 

Comparison Table: Top 10 Conversational AI for Sales and Reactivation (2026)

How We Evaluated Each Platform  

We evaluated all platforms against six criteria, where you’ll find the actual results of real-world performance. 

• How ‘human’ does the agent actually sound? Can the agent handle interruptions, questions that are not on the script, and objections without getting ‘stuck’? 

• Are there purpose-built workflows on the platform to support customer retention service customer re-engaging with leads who have been dormant, win-back campaigns, and reaching out to customers at risk of churning?  

• To what extent will call data sync back to HubSpot, Salesforce or the equivalent? 

• Will this be an automatic or manual process? 

• How long does it take for a sales operations team with no technical skill to produce an operational agent? 

• What is the cost of production for 1000 calls, 10,000 calls, and 100,000 calls per month? 

1. Olivia AI by Pete & Gabi: Best AI Sales Agent for Customer Reactivation  

Olivia AI sells based on what you are looking for, automatically detects inactive leads and little-used clients. Once detected, she can give you warm leads by making personalized phone calls and managing the process of making personalized calls with the prospect of closing your sale. She also automatically contacts all of the prospects that you already have contact with.  

Revenue teams that are trying to retain clients or prospects at a scale lodging a great deal of inactive clients (leads) or former clients (customers) typically from the automotive, insurance, financial services, telecommunications, or healthcare industries will find Olivia AI to be very effective in ways that do not require adding to their headcount of employees. 

Pros: 

• Only tool listed that is specifically designed to do both reactivation and win-back at scale. 

• All conversations are customized based on actual CRM data rather than static templates. 

• Handles objections intelligently, such as frustration, pricing pushbacks, and mentions of competitors, so those potential concerns can be addressed before making a call and thereafter. 

• Live call transfers that enable a human representative to take over the call at the exact moment the confirmation of intent to buy is made; all details of the previous conversation will not only be passed along but be fully documented in the CRM within a few minutes of the call. 

• All inbound and outbound calls can be made from this one platform. 

• Proven results with automotive, insurance, healthcare, telecommunications, and financial services. 

Cons: 

• Must have a demo and onboarding process before it can be implemented and used; not self-serve and instantly deployable. Enterprise pricing models will require direct conversations with their organization to discuss pricing. 

• The best price point will be in regard to high-full volumes of calls. If less than 500/month, you might not realize the value of this type of program. 

Pricing: This is a custom value-based enterprise pricing plan depending upon the volume of calls and the type of use case. Demos are required. To get more information contact Pete & Gabi directly. 

Best For: Revenue teams with a CRM filled with dormant leads, lapsed clients and/or potential “at risk clients” where the only possible way to contact convert them into new customers would be through manual outreach and never provide timely service. 

2. Vodex.ai  

Vodex.ai is an AI-powered, cloud-based sales agent platform designed for outbound calling campaigns. Their system automates the entire calling process from retrieving the correct numbers to creating a conversation flow to qualifying leads to documenting results back to your CRM system. 

Vodex.ai provides SMB and mid-market teams within the insurance, real estate, and financial services sectors with an AI sales assistant tool that does not require developer assistance to implement quickly. 

Pros:   

• Fast installation without needing to hire developers.   

• Templates are already available to automate many usual Outbound Sales process flows.   

• The cost is affordable enough for teams that are currently not at Enterprise level.   

• The CRM system and its basic, reliable integrations (software) are present and functioning correctly. 

Cons:    

•  Limited depth for implementing customer reactivation or retention of specific workflows. 

• When handling conversations that are not following the pre-defined script, or are multi-objection conversations, will degrade the quality of the conversation.   

• Higher trust and complex sales environments are less suited to Vodex.ai.   

Pricing: Custom quote based on volume/usage; you must contact Vodex.ai for commercial sales for a quote.   

Best for: Sales teams wanting an AI sales rep or assistant to conduct simplified Outbound Prospecting work and appointment setting quickly. 

3. Voiceflow 

Voiceflow is an all-in-one conversation design platform where you can visually build, test, and deploy a conversation agent (AI). The tool allows you to create custom AI sales agents from scratch, and not just an “off-the-shelf” sales agent like other AI sales applications do.   

Your product, operations and engineering teams will need a custom agent designed for sales, where each branch, data lookup, and escalation can be controlled with precision.   

Pros:   

• Increased ability to create logic and branching in conversations.   

• Obvious and easy to understand visualisation on canvas when working with complex flows.   

• One agent definition can be used for multi-channel distribution.   

• Large developer community offering wide-ranging documentation.   

Cons: 

• No “ready-to-go” AI SDR Software solutions. Requires significant setup time.   

• If you do not have any technical capability, your team will have trouble taking advantage of the full capability of this solution.    

• Any sales specific pre-built features will require custom development instead of simply configuration.   

Pricing: There is a free tier, and the paid plans are based on usage. Enterprise pricing is available.   

Best for: Teams wanting to build their own proprietary AI sales agent that is designed specifically for their processes and provides complete control over the design of the conversation 

4. YourGPT

YourGPT is an AI-powered no-code platform designed for multi-channel business automation across customer support, sales, and operations. The system automates multi-step workflows from customer inquiry routing to lead qualification to order processing, integrating seamlessly with 10+ channels—WhatsApp, Slack, Discord, Instagram, email, and web—while syncing data back to your CRM and business tools automatically.

YourGPT is popular among support teams and mid-market organizations within e-commerce, SaaS, and professional services seeking to reduce manual workload with AI agents that require no code or developers. The platform deploys in minutes with pre-built templates and learns from customer interactions to continuously improve response quality.

Pros:

• No-code builder with advanced workflow capability — Pre-built templates automate standard support and sales processes, while AI Studio enables complex multi-step automation for teams without developers.
• True omnichannel deployment with unified agent — One AI agent syncs instantly across 10+ channels; updates everywhere simultaneously, eliminating the need to rebuild or reconfigure per platform.
• Flexible AI model selection keeps costs predictable — Choose between GPT-3.5, GPT-4, Claude, or o1 based on task complexity; credit-based pricing scales with usage rather than fixed seat costs.

Cons:

• AI credit consumption varies significantly by model choice — GPT-4 and o1 models consume substantially more credits than GPT-3.5, making cost forecasting difficult at scale with advanced models.
• Manual retraining required when source content changes — The platform does not auto-sync when website or knowledge base content is updated; manual ReIndex must be triggered or scheduled separately.
• Advanced features locked behind higher-tier plans — Custom branding, API Studio access, and o1 model availability only available at Professional ($129+) and Advanced ($499+) pricing levels.

Pricing:

$39–$349/month for Essential through Advanced plans with tiered AI credits; custom Enterprise pricing available. Contact sales for volume commitments.

Best for:

Support teams, sales organizations, and businesses automating customer interactions across multiple channels without technical resources or hiring additional staff.

5. CallAgent AI  

CallAgent AI is a service that uses artificial intelligence to answer inbound calls, qualify leads, schedule appointments, and make outbound calls to help businesses like home service providers, healthcare practices, financial planners, and retailers without the complicated infrastructure of large companies. 

Pros: 

• Fastest launch time on this list for non-technical teams 

• One platform for both inbound calls and outbound calls 

• Ability to transfer inbound callers to a human representative after they are interested in purchasing, scheduling, or getting more information 

• Low-cost pricing for small and medium businesses 

Cons: 

• Not very capable for advanced types of conversations or long reactivation processes 

• Not very good for companies that make many outbound calls 

Pricing: Contact CallAgent AI directly for a price. 

Best For: Small or medium businesses that always want AN AI-driven sales assistant available to capture all their inbound leads and to consistently perform outbound follow-up 

6. NL Pearl  

NL Pearl is an advanced conversational AI platform for sales with high levels of multi-part question understanding, multi-complexity objection understanding, detailed product related conversation capabilities, and cross-language conversation capability built using advanced natural language processing (NLP). 

Sales teams with high levels of complexity (B2B) in their transactions, in a regulated industry, or in the international market will greatly benefit from having an AI platform like NL Pearl to help ensure they are providing high-quality, accurate, and effective conversations to potential customers since this will directly impact their sales conversions. 

Pros: 

• The best NLP understanding of any conversational AI platform on this list for complex, non-scripted conversations 

• Can be utilized for high volume transactions but works better with complex transactions 

• Provides high-quality translations of conversations without losing any quality across major languages 

• Provides detailed analytics for every conversation which allows for continuous improvement of conversations 

• Can handle multi-part questions and multiple complex objections with ease 

Cons: 

• Higher price point reflects premium positioning 

• Not optimized for high-volume transactional outreach; best for complex deals 

• Reactivation and retention features require custom configuration 

Pricing: Pricing is custom enterprise pricing and should be directly contacted through NL Pearl for more information. 

Best For: Any sales team that is selling to customers, whose sales success is dependent upon the quality of their conversations with their customers; i.e. complex B2B transactions, complex transactions where there are multiple regulatory constraints, or international sales transactions. 

7. SynthflowAI 

SynthflowAI provides a platform free from the need for coding, which allows individuals to build and use their own AI voice agents for various purposes including outbound finding, inbound qualification, and following up on leads. This allows businesses that do not have a technology division to obtain a complete sales automation solution without any engineering work required.   

Companies that have sales or marketing operation teams that would like to quickly create iteratively and deploy their own sales agents (AI) without being affected by a development backlog.   

Pros:   

• No other platform has the ability to provide the same level of functionality in a no-code environment as quickly as SynthflowAI can in terms of speed.   

• Ability to create dynamic, custom conversations based on the use of conditional logic without the need for programming skills. Integration with CRM systems, including the automatic synchronization of documents created during the call, is simple.   

• Reasonably priced when compared to other companies that provide this level of functionality.  

• Support for 30+ languages for use with international customers   

Cons:   

• The depth of conversation is not as good as voice-first enterprise level agent platforms when creating highly complex sales conversations.   

• You must pay for the most expensive package to use certain advanced extra features.   

• Different voice providers may have varying latencies when processing voice data.   

Pricing: Starting at $450. Free 14-day trial for Pro account types and above.   

Best For: Non-technical sales operation personnel who would like to utilize a complete sales automation solution without having to write any programming code.   

8. Retell AI  

Retell AI is created by developers to build, deploy and monitor AI Voice Agent Applications. Teams can use Retell to build an AI sales rep using any LLM, speech model and/or telephony provider, giving them full control over their infrastructure.  

Engineering teams and tech-savvy businesses can confidently build proprietary AI SDR Software or custom sales agent deployments with our best-in-class low-latency, production-grade voice infrastructure.    

Pros:   

• Very Low Latency (~600ms) due to working with premium voice providers. This allows for near real time conversations  

• Total access to API with the ability to bring your own LLM and voice providers  

• Excellent post-call analytics with automatic CRM Sync  

• SOC 2 Type II compliant and HIPAA compliant with Self-Service BAA Portal  

• Pay as you go from $0.07/min with no platform fee  

• Supports 31+ different languages  

Cons:  

• Developers will need to be engaged; this is not a no code tool.  

• To build workflows specific to reactivation, will require custom builds instead of using pre-built templates  

• There is a steep curve with understanding the advanced multi-state conversation logic  

Pricing: Pay as you go from $0.07/min. All users receive a $10 FREE credit when opening an account, and enterprise pricing is available.  

Best for: Engineering teams building custom AI sales agent infrastructure that requires low-latency, production-grade voice with total control over configuration. 

9. SoundHound  

SoundHound provides enterprise-grade voice AI to companies with leading speech recognition accuracy on company-specific names, manufacturer-specific terms, investment vehicle names, and other complex terms that are often considered to be inaccurate by standard voice engines.  

Many of the largest companies in telecommunications, automotive, financial services, and healthcare have experienced significant growth in customer interactions using voice technology, where voice-to-text accuracy is critically important to the quality of their products and services they offer.  

Pros:  

• Outstanding accuracy in transcribing speech for unfamiliar word usage. 

• Enterprise level reliability and performance at extremely high volumes of telephone calls. 

• World-class support for 25+ languages. 

• Can connect seamlessly with existing telecommunications infrastructure.  

Cons:  

• Not a stand-alone sales automation platform with no separate software solution but must be integrated into your existing workflow tools. 

• Very few pre-built features for retention/reinstatement. 

• Longing implementation timeline when used by enterprises. 

• Non-self-service enterprise pricing.  

Pricing: Enterprise Pricing model – All pricing must be discussed through SoundHound directly. 

Best for: medium to large enterprises requiring high-quality speech recognition across a wide variety of complex vocabulary as part of their existing sales automation infrastructure.

10. AirAI  

AirAI supports far longer sales conversations than a simple qualification phone call — long conversations where an interested party must feel important and listened to before deciding. The average sales call using AirAI is ten, fifteen, or twenty minutes long while also providing the same level of quality of conversation throughout each of these three types of sales conversations.   

Pros: 

• Provides an equally high level of quality for all conversations taking place over the course of more than 10 minutes 

• Effective at providing proper handling of delicate reactivation calls with a patient and contextual understanding of the situation through the customer’s perspective   

• Effective with complex objection handling within high trust industries   

• Automatically generates a summary of each call and identifies the outcomes from each of the calls in the customer’s CRM 

Cons: 

• Has a higher per-call cost than most other products; therefore, is less suitable for organizations that frequently conduct high-volume transactional sales outreach   

• Requires a substantial financial commitment (minimum of $25K) for the initial licensing of the product   

• No free self-service trial period; each customer must be onboarded with some level of enterprise assistance   

• Not suitable for organizations that conduct large volumes of short (qualification) sales calls.   

Price: $25,000+ license fee + variable per minute charge. Contact AirAI directly for details on enterprise pricing. 

Best For: High-value sales organizations where the ability to maintain consistent sales through the building of trust, being patient and continuing to engage with a customer throughout the entire sales process, is critical to achieving successful sales.

How to Choose the Right AI Sales Automation Tool  

The appropriate AI sales platform is determined by your needs and not its overall set of capabilities. You should look for a solution that addresses your greatest revenue loss, such as reactivation, outbound sales, or system infrastructure. It is much more important how well you execute an activity than how capable a platform is. Some solutions require additional engineering to achieve maximum value, but others are built for go-live deployment without any additional engineering support. 

Proof always takes precedence over promises. Instead of only seeing curated demos of a product, you need to test numerous genuine conversations with that platform. Test out how well the platform will perform when an agent must deal with high-pressure circumstances, objections, and edge cases. Integration with your existing systems is critical to ensuring that you receive true value from using the platform. Validate its functionality within your environment before committing to a platform. 

FAQs 

What is the difference between an AI sales agent and an AI sales assistant?  

An AI sales agent works independently by making calls, having conversations, scheduling meetings, and updating your CRM. An AI Sales Assistant works in conjunction with a salesperson to assist them with their selling tasks, such as creating recommendations and creating outreach. The platforms on this list combine elements from both categories by being autonomous enough to conduct the entire qualification and reactivation workflow on their own while having sufficient intelligence to call for a human rep to take over at the correct time. 

Can AI sales agent software actually reduce customer churn?  

Yes, it is one of the best uses of AI that can generate high returns. Using CRM signals such as declining usage, increased customer service, or near renewal information, an AI platform can proactively reach out to customers that are at risk of churning before they do. Platforms like Olivia AI and AirAI are built specifically to perform this function by having a retention-focused conversation that feels face-to-face and relevant to the customer rather than robotic and transactional. 

What should I look for in the AI SDR software?  

When evaluating AI platforms, you should be looking for Conversational Naturalness, CRM Integration Reliability, Objection Handling Complexity, and Total Cost to Book a Qualified Meeting. Just because a platform has inexpensive per-minute rates doesn’t mean that it is providing you with quality agents. You should evaluate your output metric of qualified pipeline generated rather than the input metric of cost per call.  

How does agentic AI for customer service differ from traditional sales automation software?  

Older sales automation typically uses fixed sequences to engage prospects across all stages of prospect behavior. However, agentic AI is able to read conversations as they happen, allowing it to adapt to the way in which it interacts with a prospect as new information becomes available. Furthermore, agentic AI will use inputs from integrated systems to pull contextually relevant information and make autonomously determined next steps after assessing the probability of entity-based closure. 

Which platform is best for reactivation campaigns specifically? 

Of the top 10 platforms, Olivia AI by Pete & Gabi is a specialist platform in this regard. The primary reason being is that Olivia AI is specifically designed for reactivating customers and win-backs from the ground-up; the conversation flows were specifically created to re-engage with dormant contacts, address the unique objections of customers and route warm prospects back into the active pipeline of your business.