Best AI Voice Agents in 2026

Automate customer interactions with human-sounding AI voice agents

4.5 /5 across G2 and SourceForge · 2,640 ratings, Oct 2026

Retell AI is an advanced conversational AI platform designed to automate customer interactions across phone calls, chat, and SMS. It enables businesses to create and deploy AI voice agents that sound human, execute tasks, and scale effortlessly. The platform leverages large language models (LLMs) to deliver natural, low-latency conversations, handling complex, multi-turn interactions and edge cases that traditional IVR or IVA systems cannot. This platform is ideal for businesses looking to streamline operations, enhance customer service, and reduce support costs by automating routine requests and qualifying leads. It offers a highly configurable agentic framework with drag-and-drop capabilities, built-in guardrails, and real-time function calling for tasks like appointment booking, payment processing, and record updates. Retell AI also includes comprehensive testing and analytics tools to ensure continuous improvement and performance monitoring of AI agents, making it suitable for various industries and use cases, from customer service and lead qualification to debt collection and appointment setting.

Unify global calling, AI call handling, and omnichannel support in one inbox

4.4 /5 across G2 and Capterra · 1,098 ratings, Aug 2026

CallHippo is an AI-driven business communication platform that unifies cloud phone systems, call center operations, and omnichannel messaging for sales and support teams. It includes a Cloud PBX with HD voice, call forwarding, voicemail, and multi-device support, plus an AI Voice Agent that autonomously answers calls, qualifies leads, books meetings, and resolves queries in 35+ languages. The platform also offers Conversation Intelligence with AI transcription, sentiment analysis, call scoring, and actionable insights, along with a shared inbox for voice, SMS, email, and chat. CallHippo is designed for businesses of all sizes, from small startups to enterprise organizations, offering global virtual numbers in 150+ countries, 100+ integrations with tools like Salesforce, HubSpot, Slack, and Zendesk, and a 3-minute setup. It includes features like intelligent call routing, call recording, IVR, power dialer, predictive dialer, live call monitoring, and post-call automation with CRM sync. Pricing starts with a free Basic plan and offers paid tiers, with a 10-day free trial available for paid plans.

The AI phone platform for Shopify merchants to drive revenue and enhance customer experience.

5.0 /5 on G2 · 31 ratings, Sep 2026

Consio is an AI-powered phone platform specifically designed for Shopify merchants to automate and optimize their customer outreach and support. It leverages AI voice agents to handle inbound and outbound calls, turning phone interactions into a significant revenue channel. The platform integrates directly with Shopify and Klaviyo, allowing for personalized campaigns based on customer data, such as abandoned carts or specific segments. Consio is ideal for direct-to-consumer (DTC) brands and e-commerce businesses on Shopify looking to increase conversions, improve customer loyalty, and scale their customer service operations without increasing headcount. It helps businesses recover abandoned carts, engage customers with proactive outreach, and provide 24/7 support, ultimately boosting sales and customer satisfaction through authentic voice interactions.

The world's most lifelike voice AI agents for enterprise customer service.

5.0 /5 on G2 · 11 ratings, Mar 2026

PolyAI provides an omnichannel conversational AI platform that enables enterprises to deploy highly realistic voice AI agents for customer service. These agents are designed to handle complex conversations with human-like accuracy and empathy, scaling to meet demand without compromising quality. The platform allows businesses to create a custom agent once and deploy it across various channels including voice, chat, and SMS, ensuring consistent customer experience. PolyAI is built for large enterprises seeking to enhance their customer experience (CX) operations, reduce operational costs, and improve efficiency. It offers robust monitoring tools, seamless integration with existing tech stacks like Salesforce and Genesys, and enterprise-grade controls for policy enforcement and compliance. The platform is engineered to handle millions of calls, support multiple languages with native-speaker quality, and achieve high containment rates, making it suitable for industries such as healthcare, hospitality, retail, and logistics. The core benefit is the ability to deliver both unlimited scale and complete control over customer interactions, leading to improved customer satisfaction, significant cost savings through reduced seasonal hiring, and increased revenue opportunities. The platform's rapid deployment capability, often within weeks, allows businesses to quickly realize these benefits.

Automate complex calls with AI agents you own

5.0 /5 on G2 · 10 ratings, Jun 2026

Bland is an enterprise voice AI platform designed to automate complex phone calls using AI agents. It enables organizations to build, run, and monitor AI phone agents that can engage in real conversations at scale, handling both inbound and outbound calls. These agents are built on infrastructure that customers can own, either on-premise or within their own Virtual Private Cloud (VPC), ensuring data privacy and control. The platform is ideal for teams in regulated industries such as healthcare, finance, and insurance, who need to manage high call volumes, reduce operational costs, and ensure compliance. Bland's AI agents can perform tasks like lead qualification, claims intake, scheduling, IVR replacement, and compliance disclosures across multiple channels including voice, iMessage, and web chat, all while maintaining a consistent memory and context. It integrates seamlessly with existing telephony, CRM, and scheduling systems, offering a full REST API for custom connections.

Build and deploy advanced, human-like voice AI agents with a highly configurable API.

Vapi provides a robust API-first platform for developers to create and scale sophisticated voice AI agents. It is designed for businesses ranging from startups to Fortune 500 companies that need to automate inbound and outbound call operations, enhance customer interactions, or streamline internal processes using conversational AI. The platform emphasizes flexibility, allowing users to integrate their own AI models and tools, while offering enterprise-grade reliability and scalability for handling millions of calls with ultra-low latency. Vapi aims to make advanced voice AI accessible and impactful, enabling organizations to deploy agents that feel human and drive significant operational efficiencies.

Speech APIs and business call agents, with 177 voices in 14 languages

Speakvora is a text-to-speech and speech-to-text API (offers paid tiers, 100,000 characters free) with 177 voices in 14 languages. It also sells industry voice agents that answer calls and texts, book appointments and send order updates, running on your own computer and paid once per business location.

Handle business calls, bookings, and hold times from your existing number

Mitra is an AI-powered phone assistant that handles both incoming and outgoing calls. It can answer calls when you are unavailable, make calls to businesses for tasks like booking appointments, making reservations, or checking repair status, and integrate with AI apps such as ChatGPT, Claude, and Grok via the Model Context Protocol (MCP). Mitra learns your preferences over time, handles hold times and phone trees, and can transfer urgent calls to you or allow you to listen in and join live calls. It works from your existing phone number, so contacts reach you the same way. Mitra offers a free trial and then paid plans with varying call hours and chat usage.

Research trends, create content, and automate lead qualification and booking

The Engine is an AI platform that connects marketing and sales to automate customer acquisition for service businesses. Content Engine researches trends and competitors, then makes scripts, images, videos, Reels and Shorts. Jessica, the Sales Engine AI voice agent, calls, texts and emails leads, qualifies them, follows up and books appointments. Works with any CRM and any payment processor. The 7-day free trial is generally available; sign up at theengine.dev.

Recover abandoned carts and handle shopper calls with revenue-tracked voice agents

Loop Voice is an AI voice platform for ecommerce. Its agents call shoppers minutes after they abandon checkout, answer the store's phone line around the clock for order status, returns and product questions, and run win-back and failed-payment calls. Each call is tied to the orders it brings in, so stores see attributed revenue per call. Agents name the store at the start of every call and never claim to be human.