Best Web-Based AI Voice Agents of 2025

Retell AI is a cutting-edge platform designed to help businesses create, deploy, and manage AI-driven voice agents for seamless customer communication. It offers features such as call transfers, appointment scheduling, and real-time knowledge base synchronization to enable natural and responsive conversations. With multilingual support and integration with various telephony systems, it caters to businesses operating on a global scale. The platform’s scalable infrastructure ensures efficient handling of high call volumes while maintaining low latency. Additionally, Retell AI provides in-depth analytics and sentiment analysis, allowing businesses to optimize their voice agents for improved performance and customer satisfaction.

Cognigy.AI is an enterprise-grade conversational AI platform designed to automate customer interactions across various channels, including voice and chat. Leveraging advanced natural language understanding (NLU) and large language models (LLMs), it enables businesses to create intelligent AI agents capable of delivering personalized, human-like conversations. The platform offers robust integration capabilities, allowing seamless connectivity with existing contact center and CRM systems to enhance customer experience orchestration. With features like Agentic AI, Cognigy.AI introduces autonomous, goal-oriented agents that can think, adapt, and collaborate with both AI and human agents, navigating complex queries with flexibility and precision. This comprehensive solution empowers organizations to streamline customer service operations, improve engagement, and achieve higher efficiency in handling customer inquiries.

Dialogflow by Google Cloud is a natural-language understanding platform that allows you to create and integrate a conversational interface into your mobile, web, or device. It also makes it easy for you to integrate a bot, interactive voice response system, or other type of user interface into your app, web, or mobile application. Dialogflow allows you to create new ways for customers to interact with your product. Dialogflow can analyze input from customers in multiple formats, including text and audio (such as voice or phone calls). Dialogflow can also respond to customers via text or synthetic speech. Dialogflow CX, ES offer virtual agent services for chatbots or contact centers. Agent Assist can be used to assist human agents in contact centers that have them. Agent Assist offers real-time suggestions to human agents, even while they are talking with customers.

Smith.ai provides 24/7 virtual receptionist services that combine AI-powered automation with live, North America-based agents to enhance customer interactions. Their services include call answering, lead qualification, appointment scheduling, and payment processing, catering to businesses of all sizes and industries. By integrating with popular CRMs and calendar platforms, Smith.ai ensures seamless workflow management and efficient client communication. The platform leverages AI to improve accuracy and response times while maintaining a human touch for personalized customer experiences. With flexible pricing and scalable solutions, Smith.ai helps businesses streamline operations, boost lead conversions, and improve overall client satisfaction.

Allow humans to communicate with AI in any language, for any purpose. Businesses can automate their calling processes at a lower cost. Employees can be freed from boring and repetitive tasks so they can focus on creative work. Our solution has been the best choice for our clients in the ever-changing competitive marketplace. We have a dedicated data-protection module to mask sensitive data during integration in order to ensure that our clients' data security is our top priority. We also offer SIP-level phone number rotation, and other security measures. Offering clients the most valuable, game-changing product is the best way to be successful in SaaS. We spend most of our budget on improving the technology behind our voice-assisted communication.

The most versatile and realistic AI speech software ever. Eleven delivers the most convincing, rich and authentic voices to creators and publishers looking for the ultimate tools for storytelling. The most versatile and versatile AI speech tool available allows you to produce high-quality spoken audio in any style and voice. Our deep learning model can detect human intonation and inflections and adjust delivery based upon context. Our AI model is designed to understand the logic and emotions behind words. Instead of generating sentences one-by-1, the AI model is always aware of how each utterance links to preceding or succeeding text. This zoomed-out perspective allows it a more convincing and purposeful way to intone longer fragments. Finally, you can do it with any voice you like.

Genesys Cloud CX, a cloud-based solution for contact centers, is designed to deliver exceptional experiences to customers across multiple communication channels. It integrates voice, email, chat, social media and messaging platforms in a unified interface. The platform uses advanced AI and analytics in order to provide real-time insight, automate routine task and personalize interactions. This ensures efficient and effective customer engagement. Businesses can optimize staffing, performance and service standards with its robust workforce management tool. Genesys Cloud CX was designed for easy deployment and adaptability. It is an ideal solution for all organizations looking to improve their customer service capabilities.

Herbie.ai is a multi-national Conversational AI company. (Part of SunSmart Global, 15+ years in enterprise solutions). Digital Transformation of Enterprises Virtual Assistants with Voice Enabled to Automate Business Cases Franchise expanded to 6 countries. Instant connects you with 12+ social media platforms.

IBM watsonx Assistant is a next-gen conversational AI solution—it that empowers a broader audience that includes non-technical business users, anyone in your organization to effortlessly build generative AI Assistants that deliver frictionless self-service experiences to customers across any device or channel, help boost employee productivity, and scale across your business. -User-friendly interface with drag-and-drop conversation builder and pre-built templates. -Out-of-the-box Large Language Models, Large Speech Models, Natural Language Processing and Understanding (NLP, NLU), and Intelligent Context Gathering, to better understand the context of each conversation in natural language. -Retrieval-augmented generation (RAG) for accurate, contextual, and up-to-date conversational answers around the clock, grounded in your company's knowledge base.

Mindsay automates customer interactions using conversational automation to make them more simple and efficient. We assist customer service teams in overcoming common challenges. This allows them to automate customer inquiries, eliminate time-consuming processes, optimize their human resources, and reduce costs. We help companies develop their customer service automation strategy. This allows for maximum automation of customer interactions while maintaining a low total cost of ownership.

Qualified is the #1 pipeline generation platform for revenue teams that use Salesforce. With the Pipeline Cloud, Qualified helps leading B2B companies like Autodesk, GE Healthcare, and VMWare tap into their greatest asset — their website — to identify their most valuable visitors, uncover signals of buying intent, shape sales and marketing campaigns, and instantly start sales conversations. Powered by the Xforce platform, Qualified is uniquely designed for Sales Cloud customers to generate pipeline, faster. Conversations: Qualified Conversations is the B2B conversational sales and marketing solution that allows sales teams to turn valuable website visitors into instant pipeline by avoiding form fills and qualifying them through real-time voice, video, and chat conversations. Signals: Qualified Signals is the account-based buyer intent solution that delivers more pipeline by identifying buyer interest and intent that enables sales and marketing teams to build targeted account lists based on high intent, reach out to the right prospect at the right time, and personalize their outreach through sales engagement, marketing campaigns, and conversations. Piper is an AI SDR designed to automate your inbound pipeline generation.

Remote teams can use the cloud phone system. JustCall provides a phone system that works from any device, anytime, anywhere for sales and support teams. It takes only seconds to obtain phone numbers in 70 different countries and make or receive calls. In minutes, you can set up your own cloud phone system. JustCall is the fastest and easiest way to manage your phone service. Learn how JustCall is used by companies to handle phone calls. Increase sales and conversions by enhancing agents' capabilities. Get rid of the hassles associated with manual dialing and data logging. You can increase sales call volume and productivity by up to 300% You can deliver a seamless customer experience with IVR and Smart Call Routing, as well as Live Call Monitoring. With SMS Bots and a variety of features, you can offer your clients responsive, 24-hour support. Automated integrations can be used across many business tools and applications. CRM, Helpdesk, and other software automation tools can be used to create smooth workflows for support and sales teams.

SiteSpeakAI can create a chatbot that will answer your questions in real-time and 24/7. Your chatbot can be retrained as the data on your website changes. Your chatbot is always up-to-date with the latest information. Customize your chatbot's style and colors to match your brand. You can customize the chatbot to match your brand voice. You can add your ChatGPT powered chatbot to your site with just one line of code. No need to install plugins or extensions. SiteSpeakAI gives you detailed analytics on your visitors' interactions with the chatbot. This data can be used to improve your lead conversion rates.

Ambit is a Conversational Artificial Platform that allows you to create intelligent chatbots or Digital Employees that can automate conversations with customers 24 hours a day, across any channel. Ambit's Digital Employees automate customer queries, speeding up resolution times and reducing customer service expenses by eliminating repetitive, low-value tasks. Our clients see savings of up to 30% on customer service. The platform gathers extensive data on your customers' perceptions and concerns. This allows you to better respond to their requirements - both now and in the future. We have worked with some of the most recognizable brands in the world, and we are trusted to build and onboard digital employees that reduce time to value, provide actionable insights, and maximize customer interactions.

Hyro is the first global adaptive communications platform. Hyro enables enterprises to use their most valuable channels, services, and platforms with plug-and-play conversational AI and natural-language automation. This allows them to communicate and flex their processes across all channels, platforms, and channels, including contact centers, chat solutions and SMS. You can say goodbye to rigid chatbots or voice assistants that are dependent on intent-based flows and constantly fail. Hyro's adaptive advantage for enterprises is bringing a new era of conversational technology. It is quick to deploy, easy-to-maintenance, and easy to scale. This allows Hyro to conserve valuable resources while generating more conversions and revenue-driving insight.

AI-driven speech recognition technology and voice authentication technology can transform customer engagement. Our 20-year history has been dedicated to ensuring that our partners are successful through collaboration. Our curiosity keeps us innovating for 20 more years. Our flexible speech-enabling technology allows you to create a solution that meets all your customers' needs, reliably and affordably. We do one thing well. Speech-enabling your applications is our specialty. Deliver great voice automation and interactions. LumenVox ASR/TTS can be used for simple commands or more complex questions. This will help you increase efficiency on both ends of the phone line. You won't ever repeat yourself. You will have the most flexibility in terms of capabilities, deployment, and monetization. LumenVox can help you create it if you can think of it. Our intuitive technology and toolsets make it easier to reduce time from development to deployment.

A seamless customer journey that spans channels is easy and fast. Discover our automation-first solutions that use AI every day. We release hundreds of new features, integrations, and solutions every year to keep our platform at the forefront of customer experience technology trends and technology. Our automation-first customer service solutions leverage Talkdesk AI in order to optimize your most important customer service processes. You don't need to believe us. Listen, read, and see how our customers make customers happy.

NICE CXone Mpower is an AI-powered customer service automation platform that integrates workflows, agents, and knowledge into a cohesive, scalable system. It allows businesses to create and manage seamless end-to-end workflows, enhancing collaboration between customer support teams and back-office operations. The platform leverages AI-driven virtual agents and copilots to boost efficiency by utilizing historical interaction data for smarter automation and improved agent performance. By consolidating data, AI models, and knowledge into a unified framework, CXone Mpower delivers secure, intelligent, and personalized customer interactions that drive operational excellence.

Five9 has been focused 100% on cloud contact centre software for over a decade. Five9 is the leader in execution in the Gartner Contact Center as the Service Magic Quadrant Leaders Quadrant. This has made it the preferred solution for enterprise contact centers who need a reliable, secure, and scalable solution.

"Play.ht: The AI-Powered Text-to-Voice Generation Tool for Hollywood Studios and Enterprises" Play.ht is revolutionizing the voiceover industry with its high-fidelity AI voices that sound just like human voice talent. From Hollywood studios to large enterprises, Play.ht is the go-to tool for creating realistic and engaging voiceovers quickly and effortlessly. With Play.ht, you can generate entire performances with multiple speakers, edit their pacing, and create unique versions of each paragraph - all within seconds. Say goodbye to the hassle of scheduling and hiring voice talent, and hello to a streamlined, efficient process that delivers top-quality results. Whether you're an auto manufacturer or a Hollywood studio, Play.ht's API access and online rich-text editor make it easy to scale up and simplify your voice work. Join the ranks of satisfied customers and schedule a live demo today.

Vozy is a voice assistant and conversational AI that transforms how companies interact with customers. It provides a platform for customer-centric businesses to increase their productivity with an automation that actually works. Vozy offers personalized solutions to meet the increasing demand for omnichannel customer service. Vozy is delivering significant cost savings as well as unparalleled customer experiences for Latin American companies. Vozy is trusted by powerhouses such as SURA, Bancolombia and Proteccion.

Aisera is at the forefront of innovation. It has introduced a revolutionary solution which redefines how businesses and customers thrive. Aisera's cutting-edge AI offers a proactive experience that is personalized and predictive. It automates support and operations across many sectors, including HR and IT, sales and customer service. Aisera empowers its users by providing self-service solutions that are similar to those offered by consumers. Aisera accelerates your journey to a more streamlined future by unleashing the power of digitalization. Aisera automates tasks, actions and critical business processes by leveraging user and service behavioral insights. Aisera seamlessly integrates with leading platforms like Salesforce, Zendesk and ServiceNow. It also works with Microsoft, Adobe, Oracle SAP, Marketo Hubspot and Okta.

Our AI Chatbot and Voicebot platform will help you improve customer experience. Floatbot, a hybrid platform that allows for the development of both Chatbots and Voicebots within hours, is one of very few worldwide. Automate 80% of your call center operations using hybrid Voicebot/Chatbot. Enhance your customer experience and improve your CSAT score. Our AI Chatbot platform and Voicebot platform can help you improve customer experience. Floatbot, a hybrid platform that allows for the development of both Chatbots and Voicebots within hours, is one of very few worldwide. Your response to their voice. Speech recognition in vernacular languages is available on the Floatbot platform. 10 languages, 100+ dialects powered by 100,000 hours of voice. You can create your own chatbot workflows with Voicebot Floatbot's No Code platform. It allows for rapid development and deployment using an advanced bot builder.

Voice AI for any application. Vapi allows developers to build, test and deploy Voicebots in just minutes instead of months. Solutions for everything You can build a customer support system, telehealth system, front desk, lead generation, food ordering system, transportation logistics, employee education, roleplay or anything else you like. We make voice AI as simple, reliable and accessible as any API in your stack. All the power and all the customizability. Plug in any model and speak to it anywhere.

No coding is required to create AI voice assistants that can make outbound calls and answer inbound calls. They can also schedule appointments 24 hours a day. Forget expensive machine learning teams and lengthy development cycles. Synthflow allows you to create sophisticated, tailored AI agents with no technical knowledge or coding. All you need is your data and your ideas. Over a dozen AI agents are available for use in a variety of applications, including document search, process automaton, and answering questions. You can use an agent as is or customize it according to your needs. Upload data instantly using PDFs, CSVs PPTs URLs and more. Every new piece of information makes your agent smarter. No limits on storage or computing resources. Pinecone allows you to store unlimited vector data. You can control and monitor how your agent learns. Connect your AI agent to any data source or services and give it superpowers.