Best AI tools for< Build Voice Ai Agents >

Picovoice is an on-device Voice AI and local LLM platform designed for enterprises. It offers a range of voice AI and LLM solutions, including speech-to-text, noise suppression, speaker recognition, speech-to-index, wake word detection, and more. Picovoice empowers developers to build virtual assistants and AI-powered products with compliance, reliability, and scalability in mind. The platform allows enterprises to process data locally without relying on third-party remote servers, ensuring data privacy and security. With a focus on cutting-edge AI technology, Picovoice enables users to stay ahead of the curve and adapt quickly to changing customer needs.

Retell AI provides a Conversational Voice API that enables developers to integrate human-like voice interactions into their applications. With Retell AI's API, developers can easily connect their own Large Language Models (LLMs) to create AI-powered voice agents that can engage in natural and engaging conversations. Retell AI's API offers a range of features, including ultra-low latency, realistic voices with emotions, interruption handling, and end-of-turn detection, ensuring seamless and lifelike conversations. Developers can also customize various aspects of the conversation experience, such as voice stability, backchanneling, and custom voice cloning, to tailor the AI agent to their specific needs. Retell AI's API is designed to be easy to integrate with existing LLMs and frontend applications, making it accessible to developers of all levels.

Watto AI is a platform that offers Conversational AI solutions to businesses, allowing them to build AI voice agents without the need for coding. The platform enables users to collect leads, automate customer support, and facilitate natural interactions through AI voice bots. Watto AI caters to various industries and scenarios, providing human-like conversational AI for mystery shopping, top-quality customer support, and restaurant assistance.

Millis AI is an advanced AI tool that enables users to effortlessly create next-gen voice agents with ultra-low latency, providing a seamless and natural conversational experience. It offers affordable pricing, integration with various services through webhooks, and the ability to connect phone numbers to AI voice agents for inbound/outbound calls in over 100 countries. With Millis AI, users can build and deploy voice agents in minutes, from no-code to low-code developers, and transform voice interactions across industries.

Synthflow is an AI phone calling platform that offers AI receptionist and answering services. It allows users to build a no-code AI phone system with AI voice agents, automate routine calls, provide 24/7 customer support, and track performance insights. The platform integrates with various CRMs, offers real-time booking, multi-human transfer, post-call actions, and custom actions. Users can manage contacts, track conversation history, and connect with systems like HubSpot, GoHighLevel, and Zoho. Synthflow is known for its white-label solution, transparent billing, and easy integrations.

echowin is an AI Voice Agent Builder Platform that enables businesses to create AI agents for calls, chat, and Discord. It offers a comprehensive solution for automating customer support with features like Agentic AI logic and reasoning, support for over 30 languages, parallel call answering, and 24/7 availability. The platform allows users to build, train, test, and deploy AI agents quickly and efficiently, without compromising on capabilities or scalability. With a focus on simplicity and effectiveness, echowin empowers businesses to enhance customer interactions and streamline operations through cutting-edge AI technology.

Insighto is an AI Agent Builder offering Conversational AI Chatbots & AI Voice Agents. It provides a complete AI-led communication solution for transforming digital customer conversations via voice and chat. The platform offers personalized support, human-like AI phone calling, and omnichannel engagement with integrated AI agents. Insighto supports over 50 languages, trainable voice agents, and a comprehensive tools library for easy integration with third-party services. It caters to various industries like healthcare, real estate, restaurants, and SaaS, enhancing efficiency and customer experience.

Millis AI is an instant, natural, and affordable voice AI platform designed for developers to create cutting-edge voice agents with low latency. The platform offers optimized conversation flow handling, affordable accessibility, seamless integration, and scalable expertise. With rates starting at $0.06/min, Millis AI enables users to build human-like voice agents that can manage interruptions and understand human intent. The platform also provides DevOps engineers' expertise in scaling systems for enterprise-level applications.

Daily is a platform offering real-time voice, video, and AI solutions for developers. It provides ultra-low latency, open-source SDKs, and enterprise reliability since 2016. Daily collaborates with NVIDIA on Voice Agent Blueprint, offers Pipecat - a vendor-neutral open-source orchestration framework, Daily Bots for Pipecat Cloud deployment, and Daily Infrastructure for running real-time calls on WebRTC global infrastructure. The platform ensures the best video quality on every network, with a global mesh network, low latency, and enterprise-grade security features.

Simple AI is an AI application that allows users to build hyper-realistic voice agents and deploy voice AI-powered phone calls in minutes. It offers customization options to fit individual needs, knowledge base search, seamless transfer to human agents, scalability to handle thousands of calls simultaneously, integration with various APIs, and multilingual support. Simple AI is trusted for handling inbound and outbound calls, leads qualification, logistics coordination, customer support, interviewing, sales representation, and receptionist tasks. The application is backed by Y Combinator and supports 29 languages out of the box.

Nurix AI is a custom AI agent partner that offers solutions to automate workflows, build AI products, and transform enterprise workflows. Their AI agents enable proactive actions, seamless integration, and advanced voice capabilities. Nurix provides end-to-end AI solutions tailored for startups, with a team of experts from leading tech companies. Clients benefit from improved sales conversions, increased sales reach, and cost efficiency. Nurix is trusted by leading brands to deliver cutting-edge AI solutions.

Voiceflow is a powerful, flexible, and collaborative platform for building AI automation. It allows teams of any size to build agents of any scale and complexity, easily. Voiceflow's visual workflow builder is used by developers and designers to collaboratively create, iterate, and ship complex agents. Voiceflow also offers a central CMS for managing all of your agent content, including variables, intents, entities, and knowledge base sources. With Voiceflow, you can integrate with any API or service, share and test prototypes, and launch agents to any interface.

Vocode is an open-source voice AI platform that enables users to build, deploy, and scale hyperrealistic voice agents. It offers fully programmable voice bots that can be integrated into workflows without the need for human intervention. With multilingual capability, custom language models, and the ability to connect to knowledge bases, Vocode provides a comprehensive solution for automating actions like scheduling, payments, and more. The platform also offers analytics and monitoring features to track bot performance and customer interactions, making it a valuable tool for businesses looking to enhance customer support and engagement.

MyShell is an AI application that enables users to build, share, and own AI agents. It serves as a platform connecting users, creators, and open-source AI researchers. With MyShell, users can interact with AI friends and work companions, such as Shizuku and Emma 01 03, through voice and video conversations. The application empowers creators to leverage generative AI models to transform ideas into AI-native apps quickly. MyShell fosters a creator economy in the AI-native era, allowing anyone to become a creator, take ownership of their work, and be rewarded for their ideas.

Sierra is a conversational AI platform that enables companies to build AI agents that are personalized to their business and customers. With Sierra, companies can deploy AI agents that are always available, empathetic, and aligned to their brand tone and voice. Sierra's AI agents can help customers with a variety of tasks, such as getting answers to questions, solving problems, and taking action. Sierra is trusted by leading consumer brands with millions of customers across a wide range of industries.

Agent4 is an AI-driven virtual agent platform that allows users to create custom voice experiences for callers to their business or mobile phone. The platform enables users to build intelligent agents that can answer calls, place calls, book meetings, listen to voicemails, and provide summaries. Agent4 offers real-time call monitoring, sentiment analysis for voicemails, and filtering out robocallers. Users can customize their agents with their own content and access their systems, making it a versatile tool for various call handling tasks.

Bibit AI is a real estate marketing AI designed to enhance the efficiency and effectiveness of real estate marketing and sales. It can help create listings, descriptions, and property content, and offers a host of other features. Bibit AI is the world's first AI for Real Estate. We are transforming the real estate industry by boosting efficiency and simplifying tasks like listing creation and content generation.

PolyAI is an AI-powered conversational platform that offers lifelike, adaptable, engaging, and dynamic AI agents to transform customer experience. It helps businesses handle customer inquiries, resolve issues, and improve customer loyalty through voice AI technology. PolyAI enables effortless customer interactions, boosts revenue generation, and enhances operational excellence by providing actionable insights from real conversations. The platform is purpose-built for enterprise use, ensuring security, compliance, and seamless integration with existing tech stacks across various industries.

Hamming is an AI tool designed to help automate voice agent testing and optimization. It offers features such as prompt optimization, automated voice testing, monitoring, and more. The platform allows users to test AI voice agents against simulated users, create optimized prompts, actively monitor AI app usage, and simulate customer calls to identify system gaps. Hamming is trusted by AI-forward enterprises and is built for inbound and outbound agents, including AI appointment scheduling, AI drive-through, AI customer support, AI phone follow-ups, AI personal assistant, and AI coaching and tutoring.

Caelus AI is an AI-powered tool that helps businesses acquire new users by monitoring keyword mentions of problems and competitors across Twitter and Reddit, and replying to them automatically. It uses natural language processing to understand the intent of each mention and respond in a personalized way, sounding like the business itself. Caelus AI also learns from the business's existing Twitter and Reddit posts to ensure that its responses are consistent with the brand's voice and tone.

Simulflow is a Clojure framework for building real-time voice-enabled AI applications using a data-driven, functional approach. It provides a composable pipeline architecture for processing audio, text, and AI interactions with built-in support for major AI providers. The framework uses processors that communicate through specialized frames to create voice-enabled AI agents, allowing for mental multitasking and rational thought. Simulflow offers a flow-based architecture, data-first design, streaming architecture, extensibility, flexible frame system, and built-in services for seamless integration with major AI providers. Users can easily swap components, add new functionality, or debug individual stages without affecting the entire system.

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