Best Free AI Voice Agents of 2026 - Reviews & Comparison

Supsis Ai

Supsis AI is an all-in-one, fully AI-powered, 360° business automation and communication platform. It seamlessly integrates all major social media channels and business applications, uniting your digital ecosystem in one intelligent hub. Featuring the most advanced no-code chatbot and automation builder, it lets you design powerful workflows without coding. Its AI-driven call center and virtual PBX deliver next-generation voice, chat, and omni-channel support. With Supsis AI, you need no other software — it’s a complete ecosystem to bring any idea to life, backed by top engineers and 24/7 support. From social engagement to sales, service, and internal operations, Supsis AI is your future-proof solution to work smarter, communicate faster, and grow without limits.

5 Ratings

Starting Price: $0.03 per task/session

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Dialogflow

Google

Dialogflow from Google Cloud is a natural language understanding platform that makes it easy to design and integrate a conversational user interface into your mobile app, web application, device, bot, interactive voice response system, and so on. Using Dialogflow, you can provide new and engaging ways for users to interact with your product. Dialogflow can analyze multiple types of input from your customers, including text or audio inputs (like from a phone or voice recording). It can also respond to your customers in a couple of ways, either through text or with synthetic speech. Dialogflow CX and ES provide virtual agent services for chatbots and contact centers. If you have a contact center that employs human agents, you can use Agent Assist to help your human agents. Agent Assist provides real-time suggestions for human agents while they are in conversations with end-user customers.

4 Ratings

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ElevenLabs

The most realistic and versatile AI speech software, ever. Eleven brings the most compelling, rich and lifelike voices to creators and publishers seeking the ultimate tools for storytelling. Generate top-quality spoken audio in any voice and style with the most advanced and multipurpose AI speech tool out there. Our deep learning model renders human intonation and inflections with unprecedented fidelity and adjusts delivery based on context. Our AI model is built to grasp the logic and emotions behind words. And rather than generate sentences one-by-one, it’s always mindful of how each utterance ties to preceding and succeeding text. This zoomed-out perspective allows it to intonate longer fragments convincingly and with purpose. And finally you can do this with any voice you want.

4 Ratings

Starting Price: $1 per month

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IBM watsonx Assistant

IBM

IBM watsonx Assistant (Formerly Watson Assistant) is a market-leading enterprise conversational AI platform that allows you to build intelligent virtual and voice assistants that can provide customers with fast, consistent and accurate answers across any messaging platform, application, device or channel. Using artificial intelligence and large language models, watsonx Assistant learns from customer conversations, improving its ability to resolve issues the first time while removing the frustration of long wait times, tedious searches and unhelpful chatbots. Most chatbots try to mimic human interactions, frustrating customers when a misunderstanding arises. IBM watsonx Assistant is more than a chatbot. It knows when to search for an answer from a knowledge base, when to ask for clarity and when to direct users to a human agent for more assistance. And since it can be deployed in any cloud or on-premises environment – smarter AI is finally available wherever you need it.

1 Rating

Starting Price: $140 per month

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TENIOS

TENIOS is a German-based communications provider specializing in advanced AI phone assistant and telephony solutions for businesses. Their comprehensive telecom-platform offers services such as virtual phone numbers, intelligent call routing, interactive voice response (IVR) systems, SMS, RCS, and a robust Voice API for seamless integration of voice applications. TENIOS also provides AI-powered phone assistants to automate customer interactions, enhancing efficiency in contact centers and diverse sectors with high call volumes. With over two decades of experience and hosting in Germany, TENIOS ensures reliable and scalable communication solutions tailored to meet diverse business needs.

1 Rating

Starting Price: €50/ month (Pay as YouGo)

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Intervo.ai

Intervo is an open source, enterprise-grade voice and chat AI agent platform designed to automate real-time customer interactions across voice and text channels. It allows businesses to build, train, and deploy custom agents in minutes without code; you define the agent’s purpose, upload domain knowledge (documents, files), choose a voice engine (e.g., ElevenLabs, Azure), and publish it to embedded channels. Its agents support use cases like lead qualification, customer support, AI receptionist/scheduling, interactive product assistance, and internal help agents (for HR, IT, etc.). They can integrate with telephony via Twilio, connect to multiple LLM backends (OpenAI, Claude, Gemini), orchestrate AI workflows, and embed on websites as widgets. It emphasizes scalability, compliance, and flexibility, letting organizations embed context-aware conversational agents that understand complex queries, route calls, and interact via speech or chat.

1 Rating

Starting Price: $10 per month

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Upfirst

Upfirst is an AI-powered virtual receptionist. Founded on the belief that small businesses should be able to afford great answering services, we help people change how they run their businesses by making it easy and affordable to get a virtual receptionist that’s dedicated to them. Upfirst helps small businesses answer calls around the clock so that callers never reach a voicemail. Businesses use our AI answering service to give callers an immediate human-like voice to answer questions, take messages, set appointments, and more. Knowing that every call is covered by a knowledgeable receptionist, business owners are able to focus on the day-to-day tasks that continue to drive their business forward, saving themselves time and money.

Starting Price: $24.95/month for 30 calls

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CogniAgent

CogniAgent is a cognitive AI platform that automates complex and repetitive business workflows across multiple departments using cognitive and autonomous AI agents. It enables fluid, natural conversational interactions that adapt in real time to user emotions, improving the quality of customer and employee engagements. CogniAgent supports integration with a wide range of data sources including PDFs, videos, websites, and databases, with no technical setup required. The platform uses a multi-layer cognitive architecture to manage multi-source data, complex workflows, and real-time decision-making efficiently. It helps businesses improve operational efficiency, automate standard interactions, and significantly reduce communication processing time. CogniAgent is designed to supercharge productivity and deliver consistent performance from day one.

Starting Price: 38

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Aimylogic

Just AI

Build chatbots, AI-powered calls, and actions for voice assistants that understand your customers' intents. Collect and qualify more leads from existing channels: your messengers, website and social media. Chatbots can independently process up to 80% of routine requests. If necessary, the chatbot will transfer the conversation to a specialist. The chatbot can accept payments and expand the sales funnel. The chatbot collects user feedback so you can improve the user experience. The chatbot reminds about the abandoned cart, notifies about special offers and the arrival of new products. Intents allow chatbots to make sense of an issue. They identify the customer's problem and respond according to the logic of the scenario. The Aimylogic-developed chatbot is trained to recognize greetings, goodbyes, consent and rejection, gratitude and even curses. Just insert the block you want into the scenario.

Starting Price: $89 per month

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Lindy

Lindy AI

Lindy is an AI-powered assistant designed to streamline various professional tasks by integrating seamlessly with numerous applications, including Gmail, Zoom, and Twilio. It enables users to automate workflows such as email management, customer support, scheduling, CRM data entry, lead generation, and outreach, thereby enhancing productivity and efficiency. Lindy's user-friendly interface allows for the creation of AI agents in minutes, facilitating the automation of complex processes without the need for coding expertise. Additionally, Lindy offers customizable templates tailored to specific needs, such as medical scribing, where it transforms clinician-patient interactions into accurate, comprehensive notes in real-time. By leveraging Lindy's capabilities, professionals can focus more on critical aspects of their work, confident that routine tasks are handled efficiently.

Starting Price: $49.99/month

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Voiceflow

Teams use Voiceflow to design, test, and ship conversational assistants, together, faster, at scale. Create chat and voice interfaces for any digital product or conversational assistant. Bring together conversation design, development, product, copywriting, legal, and more. Design, prototype, test, iterate, launch, and measure, all with one platform. Eliminate functional silos and content chaos. With Voiceflow, teams work together in an interactive workspace that consolidates all assistant data, conversation flows, intents, utterances, response content, API calls, and more. Avoid delays and big dev efforts with 1-click prototyping. In minutes, designers can create shareable, high-fidelity prototypes to test and refine the user experience. Voiceflow is the go-to tool for increasing the speed and scale of app delivery. Accelerate your workflow with timesavers like drag-and-drop design, rapid prototyping, real-time feedback, and pre-built code.

Starting Price: $40 per editor per month

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LiveKit

LiveKit is a real-time platform that enables developers to build video, voice, and data capabilities into their applications. Building on WebRTC, it supports a broad range of frontend and backend platforms. LiveKit's network is optimized for ultra-low latency, extreme resiliency, and massive scale. Our team is distributed across the world, and our infrastructure delivers billions of minutes of audio and video every month. LiveKit provides SDK support across all major platforms, allowing you to code your application with a LiveKit client natively designed for your platform of choice. You can self-host LiveKit for free without changing a line of code, as the entire ecosystem of tools and services is Apache 2.0 open source. LiveKit offers a feature-rich platform, including SSO and RBAC for teams, enterprise-grade security with end-to-end encryption, noise and echo cancellation, session recording, stream ingestion, and moderation tools.

Starting Price: $50 per month

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Vocode

Vocode is an open source library that simplifies the creation of voice-based applications leveraging large language models. Developers can build real-time streaming conversations with LLMs and deploy them to phone calls, Zoom meetings, and more. Vocode provides easy abstractions and integrations so that everything you need is in a single library. It offers out-of-the-box integrations with leading speech-to-text and text-to-speech providers, including AssemblyAI, Deepgram, Google Cloud, Microsoft Azure, and Whisper. The platform supports cross-platform deployment across telephony, web, and Zoom, enabling applications like LLM-powered phone calls, personal assistants, and voice-based games. Vocode's modular design allows for seamless integration of various AI models and services, providing developers with the flexibility to choose the best components for their applications. The platform also supports multilingual capabilities.

Starting Price: Free

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Krybe

Krybe is an AI-powered platform offering cutting-edge voice and transcription solutions, including voice agents and speech AI, designed to transform noise into actionable insights for businesses and individuals. Users can experience 60 minutes of free transcription and process up to 5,000 characters of text without requiring a credit card, with the flexibility to cancel anytime. Krybe's services are tailored to maintain a unique brand voice across platforms, facilitating narration, automation, and personalization. The platform aims to streamline workflows, enhance productivity, and enable effortless scaling for its users. Krybe's voice agents are designed to integrate seamlessly with existing systems, functioning like real human assistants to automate business processes. Listen to a real customer service interaction handled seamlessly by our AI voice agent. Effortlessly convert speech to text in real-time, ensuring you never miss a detail while staying fully engaged in discussions.

Starting Price: $13 per month

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Assindo

Assindo is an AI assistant designed to manage your phone calls, allowing you to focus on what matters. It handles incoming calls, makes important calls on your behalf, and automates outgoing calls such as scheduling appointments and customer service interactions. Assindo navigates phone menus, waits on hold, screens calls, and takes messages when you're unavailable. It captures important details from incoming calls, converts them into actionable tasks, and keeps track of completed tasks to ensure efficiency. With seven unique AI assistant personalities to choose from, including Elena's determination and Liam's efficiency, Assindo tailors its services to your preferences. You can communicate directly with your AI assistant to provide updates, give new instructions, or receive detailed task updates in real time.

Starting Price: $0.99 per month

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Genspark

Genspark is an AI-driven platform that empowers users to automate tasks and generate content with ease, including video production, image creation, and deep research. A standout feature is the Genspark Super Agent, which allows users to delegate tasks like selecting the perfect gifts, planning travel, making restaurant reservations, and even conducting detailed market research. Whether you need to create custom visuals, generate insightful reports, or plan complex trips, Genspark's Super Agent and specialized tools streamline the process, making high-quality outputs accessible without technical expertise.

Starting Price: Free

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ServiceAgent

ServiceAgent is an AI call answering agent that helps home service businesses never miss a lead by handling inbound calls 24/7 and booking appointments. Your always-on AI answering agent will keep your business growing 24/7 by answering calls, booking appointments, and converting leads into opportunities, while your competitor is missing service calls every day. Human-voice AI agent from ServiceAgent will ensure that all your incoming calls get answered in seconds, even during nights and holidays. Never miss a lead again. Our AI agent can handle inbound queries at all hours, capturing crucial details so you remain fully accessible. Receive concise overviews and full transcripts of each call. Track every follow-up task with crystal clarity, ensuring no detail is overlooked. Callers will soon set appointments on the spot, with automated SMS confirmations that keep your calendar in sync and reduce no-shows.

Starting Price: $199 per month

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CallSnag

Call Snag

Call Snag frees you from the pressure of answering every call. Our AI voice receptionist handles incoming calls when you can't, engaging with callers naturally while screening out unwanted interruptions. Set your preferences once, and let the system take care of the rest. Built for both individuals and businesses, Call Snag stores all calls, voicemails, and transcripts securely in the cloud. With customizable voices, personalized greetings, and 24/7 availability, we're making phone communication work around your schedule—not the other way around.

Starting Price: $20/month

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smallest.ai

Smallest.ai is a real-time AI platform designed to deliver hyper-personalized voice experiences with minimal latency and high scalability. Its flagship products, Waves and Atoms, enable users to generate human-like AI voices and deploy real-time AI agents for customer interactions. Waves offers ultra-realistic text-to-speech capabilities, supporting over 30 languages and 100 accents, with sub-100ms API latency for instant voice generation. It also features instant voice cloning, allowing users to replicate any voice with just a 5-second audio sample, making it ideal for personalized branding and content creation. Atoms provides AI agents capable of handling customer calls, offering seamless, natural-sounding conversations without human intervention. Both products are designed for easy integration, offering scalable APIs and Python SDKs to facilitate deployment across various platforms.

Starting Price: $5 per month

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Chikka.ai

Chikka.ai is an AI-powered voice interviewing platform featuring “Ava,” an empathetic, multilingual AI voice agent that conducts dynamic and natural voice interviews at scale. Users simply define objectives, invite participants via a shareable link, and Ava leads the conversation, capturing authentic feedback securely. Chikka.ai instantly converts recordings into transcripts, emotional insights, summaries, shareable quote posters, and marketing-ready testimonials authenticated by its VoiceVerify engine to ensure credibility. It supports hundreds of interviews concurrently, offers synthetic persona test-runs, global respondent panels, and robust privacy protections with encryption and identity masking. Real-time analytics and theme detection help teams uncover hidden opportunities, reduce churn, inform product-market fit, refine employee engagement, and generate content-driven marketing materials.

Starting Price: $19.90 per month

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VoiceBun

VoiceBun is an open source, no-code voice-agent builder that lets you create, configure, and deploy AI-powered conversational assistants entirely via natural-language prompts. It combines speech-to-text, large-language models, and text-to-speech into a unified platform where you define your agent’s goals, initial greeting, tool integrations and data sources; VoiceBun automatically generates the underlying conversational logic, state management and API connectors needed to handle inbound and outbound calls for support, scheduling, lead qualification and more. The web-based interface gives you mobile-friendly access and isolated deployments through user-specific subdomains, while built-in analytics surface call transcripts, usage metrics, success rates, and sentiment trends. Integration includes options for telephony, webhook actions for external workflows, and role-based access controls with encrypted credentials for enterprise security.

Starting Price: $20 per month

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Zo by Zocdoc

Zocdoc

Zo by Zocdoc is an AI-powered phone assistant that instantly answers inbound scheduling calls, bypassing hold times and outdated IVR menus, and books patient appointments directly into existing EHR systems using natural, conversational language. It handles unlimited, concurrent calls 24/7, autonomously resolving up to 70% of scheduling inquiries and escalating only the most complex cases to human staff. Zo is configurable to practices’ specific booking rules, integrates seamlessly with their phone systems and EHR platforms, and intelligently routes patients, such as directing routine requests to nurse practitioners while prioritizing complex needs for physicians. Practices are invoiced per successfully scheduled appointment (no upfront fees, time-based charges, or long-term contracts), making it a low-risk deployment. Early adopters report average call resolution times under 3 minutes and 30 seconds with zero hold time, and patient satisfaction ratings exceed 80%.

Starting Price: Free

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TEN

TEN (Transformative Extensions Network) is an open source framework designed to empower developers to build real-time multimodal AI agents capable of voice, video, text, image, and data-stream interaction with ultra-low latency. It includes a full ecosystem, TEN Turn Detection, TEN Agent, and TMAN Designer, allowing developers to rapidly assemble human-like, responsive agents that can see, speak, hear, and interact. With support for languages like Python, C++, and Go, it offers flexible deployment on both edge and cloud environments. Using components like graph-based workflow design, drag-and-drop UI (via TMAN Designer), and reusable extensions such as real-time avatars, RAG (Retrieval-Augmented Generation), and image generation, TEN enables highly customizable, scalable agent development with minimal code.

Starting Price: Free

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gpt-realtime

OpenAI

GPT-Realtime is OpenAI’s most advanced, production-ready speech-to-speech model, now accessible through the fully available Realtime API. It delivers remarkably natural, expressive audio with fine-grained control over tone, pace, and accent. The model can comprehend nuanced human audio, including laughter, switch languages mid-sentence, and accurately process alphanumeric details like phone numbers across multiple languages. It significantly improves reasoning and instruction-following (achieving 82.8% on the BigBench Audio benchmark and 30.5% on MultiChallenge) and boasts enhanced function calling, now more reliable, timely, and accurate (scoring 66.5% on ComplexFuncBench). The model supports asynchronous tool invocation so conversations remain fluid even during long-running calls. The Realtime API also offers innovative capabilities such as image input support, SIP phone network integration, remote MCP server connection, and reusable conversation prompts.

Starting Price: $20 per month

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Pod

Pod provides AI-voice agents that answer your business phone calls 24/7, speaking naturally (no rigid phone-tree menus) to book appointments, support customers, qualify leads, check order or payment status, schedule services, verify information, and escalate to humans when needed. You can deploy these voice agents in minutes without code, integrating them with your existing phone system, CRM, knowledge base/documentation, calendars, databases, and business APIs so they can access real-time data and behave like a part of your team. It supports smart routing, multi-language conversations, analytics on call performance, and security with bank-level encryption, transparent privacy/data-retention control, and compliance practices. It’s meant to save hours each month by automating inbound support, outbound engagement, lead follow-ups, surveys/feedback, and other common phone tasks.

Starting Price: $20 per month

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Matador AI

Matador is a conversational AI platform built specifically for auto dealerships to automate and optimize sales, service, and support interactions at scale. Their offerings include an AI sales agent for generating and nurturing leads, an AI service agent to drive service revenue and retention, and an AI call agent to never miss inbound calls, all powered by “AutomotiveGPT.” Matador surfaces key “opportunity searches” so teams know where to act next and automates workflows like SMS outreach, appointment booking, and follow-ups. It supports broadcast messaging, compliance, automations, video, and integrates deeply with dealer CRMs and lead tools. A browser extension lets users send texts directly from any CRM or web app using their business number, with templates, dynamic fields, scheduling, attachments, and synchronized messaging. The platform is trusted by over 1,000 dealerships.

Starting Price: Free

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Layercode

Layercode is a cloud-based developer platform that makes it easy to build production-ready, low-latency voice AI agents by handling the real-time infrastructure so you can focus on your agent’s logic; it manages WebSockets, voice activity detection, global edge deployment, and voice model integrations while giving you full control over how your agent thinks, speaks, and responds. It enables natural, fluid voice conversations with sub-second response times and human-like turn-taking, offers observability tools so you can inspect calls, latency, and failures in production, and fits naturally into modern TypeScript and Next.js stacks with simple CLI and SDK support so you can receive text and send text back. With Layercode, you can avoid vendor lock-in by hot-swapping leading voice and transcription model providers, maintain complete flexibility by plugging in your own AI agent backend, and deploy voice agents across web, mobile, and phone interfaces.

Starting Price: $0.04 per minute

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Convocore

Convocore is a multi-channel AI automation platform that lets businesses build and deploy production-ready AI voice agents and chatbots in minutes, with no coding required. It supports AI phone agents, WhatsApp bots, Instagram DMs, and web chat to automate customer conversations across every channel. Built for agencies, businesses, enterprises, and resellers, Convocore offers full white-label capabilities, including custom domains, branding, and client management. Its visual builder makes creating intelligent AI agents simple, even without technical expertise. Convocore integrates with 40+ tools like HubSpot, Salesforce, Google Calendar, and Shopify, enabling automated lead qualification, booking, support, and sales. Trusted by 15,000+ users and powering over 10 million conversations, Convocore helps teams scale AI solutions, reduce costs, and deliver instant 24/7 responses with measurable results.

Starting Price: $0/user/month

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Jelou

Jelou is a conversational AI platform that lets companies build, launch, and manage intelligent AI agents that go beyond simple chat responses to execute real business workflows and transactions inside the conversation. Its agents can verify customer identities using in-chat KYC with biometric and document validation, process secure payments without redirecting users, collect legally binding signatures, and enable conversational search and e-commerce experiences, all from popular messaging channels. It includes Brain Studio, a no-code/low-code environment for creating, testing, and deploying agents with integration to databases, existing business systems, and APIs, supports real-time logs for debugging, and allows human-in-the-loop handoff when needed. Jelou emphasizes privacy and compliance with certified data protection standards, prohibits third-party AI training on customer data, and encrypts transactional information.

Starting Price: Free

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Maple

Maple is a voice AI customer support platform built specifically for restaurants and similar service businesses that uses advanced natural language and menu-aware intelligence to answer inbound calls 24/7, take and process orders with high accuracy, manage reservations (including booking, modification, and cancellation), upsell intelligently, and work with multiple languages so teams never miss opportunities or lose business due to unanswered calls or manual handling; it integrates directly with restaurants’ point-of-sale systems to understand menus, including dietary needs and allergies, capture orders precisely, personalize guest interactions, and drive higher average ticket sizes and operational efficiency, while enterprise-grade infrastructure supports scalability and reliability across single or multi-location operations so restaurants can automate routine call tasks, increase order capture, and enhance guest experience without added staffing burden.

Starting Price: $50 per month

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Best Free AI Voice Agents

Compare the Top Free AI Voice Agents as of March 2026

What are Free AI Voice Agents?

Supsis Ai

Dialogflow

ElevenLabs

IBM watsonx Assistant

TENIOS

Intervo.ai

Upfirst

CogniAgent

Aimylogic

Lindy

Voiceflow

LiveKit

Vocode

Krybe

Assindo

Genspark

ServiceAgent

CallSnag

smallest.ai

Chikka.ai

VoiceBun

Zo by Zocdoc

TEN

gpt-realtime

Pod

Matador AI

Layercode

Convocore

Jelou

Maple

Best Free AI Voice Agents

Compare the Top Free AI Voice Agents as of March 2026

What are Free AI Voice Agents?

Supsis Ai

Dialogflow

ElevenLabs

IBM watsonx Assistant

TENIOS

Intervo.ai

Upfirst

CogniAgent

Aimylogic

Lindy

Voiceflow

LiveKit

Vocode

Krybe

Assindo

Genspark

ServiceAgent

CallSnag

smallest.ai

Chikka.ai

VoiceBun

Zo by Zocdoc

TEN

gpt-realtime

Pod

Matador AI

Layercode

Convocore

Jelou

Maple

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