Best AI Voice Agents for Workers by Delos

Telnyx is a real-time communications and AI infrastructure platform built to help businesses develop and deploy voice, messaging, and AI-powered conversational systems on top of a globally owned telecom network. Unlike traditional communication providers that rely heavily on rented infrastructure, Telnyx operates its own carrier-grade network stack, including physical interconnects, edge processing systems, mobile core infrastructure, and AI inference layers. This full-stack ownership allows the platform to deliver low-latency voice AI, programmable identity verification, autonomous orchestration, and real-time communication services without depending on external telecom providers. Telnyx provides developers and enterprises with tools such as voice agent builders, speech-to-text, text-to-speech, AI orchestration engines, global phone numbers, programmable compliance systems, and real-time communication APIs for building intelligent automation systems. The platform supports real-time multilingual AI transcription, AI-native routing, and conversational AI deployments powered by colocated GPUs and telecom edge points of presence. Telnyx also includes built-in programmatic compliance capabilities such as 10DLC and KYC automation to help organizations manage regulatory requirements directly within communication workflows. Businesses can use the platform to automate appointment reminders, customer support, financial interactions, retail workflows, automotive operations, and hospitality services through AI-driven voice and messaging agents. The company emphasizes enterprise-grade security with network-level identity verification, fraud prevention, deepfake protection, and compliance certifications including HIPAA, GDPR, PCI, SOC2 Type II, and ISO standards.

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.

Aircall transforms business communications with an intelligent, cloud-based phone system built for modern sales and customer support. More than just a calling tool, it provides an all-in-one hub that connects phone, SMS, and WhatsApp conversations in a single platform. Its AI Assist Pro feature delivers real-time coaching during calls and simplifies follow-up, enabling reps to sell smarter and resolve support issues faster. Teams can leverage advanced capabilities like call routing, IVR, analytics dashboards, and power dialers to maximize efficiency. With integrations across Salesforce, HubSpot, Zendesk, Intercom, Shopify, and 100+ other apps, Aircall seamlessly fits into existing workflows. Businesses benefit from reliable call quality, international number coverage, and scalable features that grow with their needs. Customer stories highlight improvements such as a 4% increase in CSAT scores and the ability to process 25,000+ calls per month with stability and ease. Aircall makes customer conversations more personal, productive, and impactful—without the complexity of traditional systems.

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.

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.

Retell AI is a cutting-edge platform designed to empower organizations in the development, testing, deployment, and oversight of AI-driven voice agents, enhancing customer engagement effortlessly. It boasts functionalities such as call transfers, appointment management, and seamless knowledge base integration, enabling the generation of realistic conversations with little delay. The platform is compatible with multiple telephony systems and features multilingual support, positioning it as an ideal solution for international businesses. Retell AI's scalable architecture guarantees dependable performance, adeptly managing significant call volumes. Furthermore, it offers extensive monitoring tools to assess call effectiveness and user sentiment, encouraging ongoing enhancements of voice agents while fostering a better understanding of customer needs. This comprehensive approach ensures that businesses can adapt and thrive in a rapidly changing digital landscape.

Voiceflow is an operating system for AI customer experience that helps businesses create conversational agents for customer support, sales, lead generation, call centers, and self-service automation. It enables teams to design AI workflows visually while also giving developers access to APIs, code functions, integrations, and customization tools. The platform is built for teams that want to ship AI agents faster, test changes with confidence, and roll out improvements that remain compatible as usage grows. Voiceflow supports web, phone, and mobile experiences, helping companies serve customers across multiple channels from one platform. Its agent builder combines agentic playbooks with deterministic workflows, allowing teams to balance AI flexibility with structured business logic. The observability suite uses LLM-powered evaluations, logs, and metrics to help teams understand agent behavior and make faster iteration decisions. Production environments support a real development pipeline from design to staging and final launch, all hosted on Voiceflow. Businesses can connect agents to tools such as Zendesk, Salesforce, Shopify, HubSpot, Airtable, Google Sheets, Make, Gmail, and other applications. With model flexibility, enterprise compliance, and collaboration features, Voiceflow helps organizations automate customer conversations while maintaining control, visibility, and security.

LiveKit is a real-time communication platform that empowers developers to integrate video, voice, and data functionalities into their applications seamlessly. Utilizing WebRTC technology, it caters to a wide array of frontend and backend frameworks. The network architecture of LiveKit is meticulously designed to ensure ultra-low latency, exceptional resilience, and the capacity to scale massively. Our globally distributed team oversees an infrastructure that processes billions of audio and video minutes monthly, demonstrating our extensive reach. The platform offers SDK support for all leading platforms, enabling developers to create their applications with a LiveKit client that is natively tailored to their chosen environment. Moreover, LiveKit allows for self-hosting at no cost, requiring no modifications to your code since the entire suite of tools and services adheres to the Apache 2.0 open-source license. With a plethora of features, LiveKit includes single sign-on (SSO) and role-based access control (RBAC) for teams, robust security measures such as end-to-end encryption, as well as tools for noise and echo cancellation, session recording, stream ingestion, and moderation, making it an ideal choice for developers. In essence, LiveKit stands out as an all-encompassing solution for real-time communications, providing everything needed to build highly interactive applications.

You can use accurate speech recognition at scale and continuously improve model performance by labeling data, training and labeling from one console. We provide state-of the-art speech recognition and understanding at large scale. We do this by offering cutting-edge model training, data-labeling, and flexible deployment options. Our platform recognizes multiple languages and accents. It dynamically adapts to your business' needs with each training session. Enterprise-specific speech transcription software that is fast, accurate, reliable, and scalable. ASR has been reinvented with 100% deep learning, which allows companies to improve their accuracy. Stop waiting for big tech companies to improve their software. Instead, force your developers to manually increase accuracy by using keywords in every API call. You can train your speech model now and reap the benefits in weeks, instead of months or even years.

Bland is an innovative platform that leverages artificial intelligence to streamline phone communications for businesses, offering convincingly human-like conversational agents capable of managing various tasks such as sales, scheduling, and customer service. Its robust, self-hosted infrastructure guarantees swift response times, impressive uptime of 99.99%, and stringent security measures. The platform empowers companies to develop tailored phone agents that can communicate in multiple languages, navigate intricate workflows, and seamlessly connect with current systems. By providing affordable and scalable AI solutions, Bland assures enterprises that their calls are conducted effectively while maintaining a personalized and natural tone. Additionally, this technology not only enhances operational efficiency but also significantly improves customer engagement through its advanced capabilities.