Alternatives to SoundHound
Compare SoundHound alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to SoundHound in 2026. Compare features, ratings, user reviews, pricing, and more from SoundHound competitors and alternatives in order to make an informed decision for your business.
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Google Cloud Speech-to-Text
Google
Google Cloud’s Speech API processes more than 1 billion voice minutes per month with close to human levels of understanding for many commonly spoken languages. Powered by the best of Google's AI research and technology, Google Cloud's Speech-to-Text API helps you accurately transcribe speech into text in 73 languages and 137 different local variants. Leverage Google’s most advanced deep learning neural network algorithms for automatic speech recognition (ASR) and deploy ASR wherever you need it, whether in the cloud with the API, on-premises with Speech-to-Text On-Prem, or locally on any device with Speech On-Device. -
2
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.Starting Price: $140 per month
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3
Play.ht
Play.ht
AI Powered Text to Voice Generation. Play.ht offers uncanny, high-fidelity AI Voices for any project where you need human-sounding voice overs and performances. Hollywood studios, auto manufacturers, and other large enterprises use Play.ht to create realistic and engaging voiceovers quickly, without the hassle of scheduling and hiring voice talent. Our voices sound natural, expressive, and engaging, just like human voice talent. Play.ht offers API access as well as an online rich-text editor that allows you to generate entire performances with multiple speakers, edit their pacing, and generate unique versions of each paragraph - all within seconds. Join other companies looking to scale up and simplify their voice work by scheduling a live demo today.Starting Price: $199 per month -
4
LumenVox
LumenVox
Transforming customer engagement with AI-driven speech recognition and voice authentication technology. We’ve spent the last 20 years empowering our partners’ success through collaboration. Our curiosity keeps us innovating for the next 20. Our flexible speech-enabling technology enables you to build a solution that fulfills all your customers’ demands, affordably and reliably. We do one thing, and we do it well. And that's speech-enabling your applications. Finally, deliver great voice automation and interactions. Whether short and simple commands, or conversational questions, LumenVox ASR and TTS is accurate and affordable, helping you improve efficiencies on both sides of the phone line. You’ll never repeat yourself again. We provide you with the utmost flexibility from a capabilities, deployment and monetization perspective. If you can think it, you can build it with LumenVox. Shorten your development to deployment time with our easy, intuitive technology and toolsets. -
5
Enterprise Bot
Enterprise Bot
Enterprise Bot, based in Switzerland, is a pioneer in Conversational AI, Process Automation, and Generative AI. With the trust of esteemed enterprise giants across industries like Generali, SIX, SBB, DHL, and SWICA, Enterprise Bot is revolutionizing both customer and employee experiences. Through its advanced integration with Large Language Models (LLM) such as ChatGPT and Llama 2, and its unique patent-pending DocBrain technology, the company delivers unparalleled personalization, active engagement, and omnichannel solutions across platforms like email, voice, and chat. Furthermore, Enterprise Bot integrates with existing core systems, such as SAP, CRMs, Confluence and more, and with its proprietary middleware, Blitzico, enables the AI to not only respond to queries but also take action to resolve them. This dedication to innovation in four main use case areas, Customer Support, Sales and Marketing, Knowledge Management and Digital Coworker, elevates both CX and employee productivity. -
6
AI Rudder
AI Rudder
AI Rudder is a software company that harnesses the power of AI voice automation to supercharge customer experiences. With AI voice assistants, your call center can make quality human-like calls at lightning speeds, collecting and analysing data automatically to reach and activate more customers. AI Rudder helps call centers reduce costs by automating repetitive tasks and lowering agent workload. This free up agents to focus on things only humans can do. Over the long term, AI Rudder aims to rethink the future of business communication. -
7
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. -
8
Cognigy.AI
NiCE Cognigy
NiCE Cognigy delivers AI that works – fast, human, and built for real-world scale. As part of NiCE, a global leader in customer experience technology, we combine Generative and Conversational AI with orchestration, tools, and enterprise integrations to power Agentic AI. The result? Smarter automation, better service, and instant resolution across every channel. NiCE Cognigy’s AI Agents Supercharge Your Customer Service -Industry-specific pre-trained AI Agents -Multilingual call and chat support (100+ languages) -Seamless integration with existing enterprise systems -Leverages memory and context for hyper-personalized interactions -Absorbs enterprise knowledge to accurately answer any customer query -Real-time assistance and actionable service insights for human agents Business Impact for our Customers: -30% CSAT improvement -70% AHT reduction -99.5% Faster response time -99% Routing accuracy -
9
Amazon Lex
Amazon
Amazon Lex is a service for building conversational interfaces into any application using voice and text. Amazon Lex provides the advanced deep learning functionalities of automatic speech recognition (ASR) for converting speech to text, and natural language understanding (NLU) to recognize the intent of the text, to enable you to build applications with highly engaging user experiences and lifelike conversational interactions. With Amazon Lex, the same deep learning technologies that power Amazon Alexa are now available to any developer, enabling you to quickly and easily build sophisticated, natural language, conversational bots (“chatbots”). With Amazon Lex, you can build bots to increase contact center productivity, automate simple tasks, and drive operational efficiencies across the enterprise. As a fully managed service, Amazon Lex scales automatically, so you don’t need to worry about managing infrastructure. -
10
Kore.ai
Kore.ai
Kore.ai is an enterprise AI platform that enables organizations to build, deploy, manage, and optimize AI agents for customer service and employee productivity use cases. Its Agent Platform, known as Artemis, provides the foundation for creating AI-powered applications, intelligent workflows, and enterprise-grade automation solutions. The platform includes pre-built applications for industries such as banking, healthcare, retail, human resources, recruiting, and IT support. Organizations can also leverage AI agent builders, enterprise search, orchestration tools, and marketplace integrations to accelerate development and deployment. Kore.ai is designed to support large-scale enterprise environments with strong governance, administrative controls, and integration capabilities. By combining AI agents, automation, and business process intelligence, Kore.ai helps enterprises improve operational efficiency and customer experiences. -
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Retell AI
Retell AI
Retell AI is an advanced platform that enables businesses to build, test, deploy, and monitor AI-powered voice agents for seamless customer interactions. With features like call transfer, appointment scheduling, and knowledge base synchronization, it allows for the creation of lifelike conversations with minimal latency. The platform supports integration with various telephony systems and offers multilingual capabilities, making it suitable for global operations. Retell AI's scalable infrastructure ensures reliable performance, handling high call volumes efficiently. Additionally, it provides robust monitoring tools to analyze call performance and user sentiment, facilitating continuous improvement of voice agents. -
12
Picovoice
Picovoice
Picovoice is the first and only ubiquitous on-device voice AI platform. Picovoice offers speech-to-text, voice search, wake word, Speech-to-Intent (intent detection) and voice activity detection engines. Its stack can run on anything from embedded devices to web browsers, providing an immersive experience not achievable by any Big Tech.Starting Price: Free -
13
Sensory Wake Word
Sensory, Inc.
Sensory Wake Word is an embedded voice-trigger technology that delivers accurate, low-power "hotword" detection for always-on voice interfaces. Pre-built wake words enable fast deployment with consistent accuracy across noisy real-world environments. Key capabilities include an ultra-low resource footprint (as little as 30-40KB code size on DSP), always-on and always-private operation with no cloud dependency, robust noise rejection, and platform-independent deployment across Windows, Linux, Android, macOS, and RTOS. Runs on a wide range of cores including ARM Cortex-M, Cirrus ADSP2, CEVA Teaklite, and Tensilica Hifi. Backed by over 30 years in embedded voice AI and billions of devices shipped worldwide with customers like Amazon, Apple, Google, BMW, Microsoft, and Samsung. Developers can build and test custom wake word models in hours using Sensory's VoiceHub self-service portal. -
14
aiOla
aiOla
aiOla is a deep tech Conversational, Voice, and Speech AI lab with an enterprise-level automatic speech recognition (ASR) foundation model, Text-to-speech (TTS) technology and Natural Language Understanding (NLU). It’s designed to help enterprises and developers adapt speech technologies to any process, whether through seamless API integration or an intuitive in-house app. aiOla is revolutionizing enterprise operations with enterprise level Conversational AI. We specialize in speech-to-text and text-to-speech AI that deliver unmatched accuracy (95%), specialized in specific jargon, in any language, accent, vertical, or acoustic environment. From empowering frontline workers with hands-free workflows to enabling voice AI agents with enterprise-grade ASR and TTS, aiOla seamlessly integrates into workflows, internal apps and products. -
15
Vozy
Vozy
Vozy transforms the way companies interact with customers through voice assistants and conversational artificial intelligence to boost customer-centric enterprises with an automation that really works. With personalized solutions designed to meet the growing omnichannel customer care demand, Vozy is delivering significant cost savings and unprecedented customer experiences for companies in Latin America. That’s why powerhouses like SURA, Bancolombia, Protección, and Emtelco trust Vozy. -
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PlayAI
PlayAI
PlayAI is a voice intelligence platform that enables businesses to create highly realistic, human-like AI voices for a variety of applications. The platform provides tools for building voice agents that can be deployed across web platforms, mobile apps, and phone systems. PlayAI's voice models are designed to sound fluid and emotive, enhancing customer support, personal assistance, and even front desk interactions. With flexible deployment options, the platform supports applications like voiceover creation, podcasts, and more, making it an ideal solution for companies looking to integrate conversational AI into their services. -
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Herbie.ai
Herbie.ai
Herbie.ai – A multi-national Conversational AI company (Part of SunSmart Global – 15+ years in enterprise solutions) Digital Transformation of Enterprises Unique Voice-Enabled Virtual Assistants to automate business cases. Franchise spread over 6 Countries – expanding to 13+. Instant enables seamless connection with 12+ Social Media platforms. The business provides end-to-end AI Solution that are "Innovative & Intelligent" in addressing the critical business needs of Mid to Large Corporates, built using advanced technology with applications across business verticals and geographies. Herbie.AI is a Microsoft Gold Application Development Partner, and is ISO 9001:2015 Certified. AI, ML & NLP based, Multi-lingual, Omni-channel, Always-on bots with transfer to agent. Improve your customer experience with ai powered conversational chatbot solution. Provide complete customer service with Herbie AI chatbots for customer support. Lower Customer Support Costs.Starting Price: $1000 -
18
FonadaLabs
FonadaLabs
FonadaLabs is a voice AI platform that provides enterprise-grade infrastructure and APIs for building voice agents on Indian telephony networks. The platform offers a complete voice pipeline that includes telephony hosting, noise cancellation, speech recognition, voice models, and text-to-speech capabilities within a unified API environment. FonadaLabs supports over 23 Indian languages with speech recognition optimized for regional accents and telephony use cases. The platform enables real-time voice streaming with ultra-low latency, enterprise security, and India-based data residency for compliance and sovereignty requirements. Businesses can also leverage specialized voice agent language models, tool-calling support, and natural-sounding Indian voice generation for customer interactions and automation.Starting Price: $5 -
19
ElevenLabs
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.Starting Price: $1 per month -
20
Symbl
Symbl.ai
Symbl is an API platform for developers and businesses to rapidly deploy conversational intelligence at scale – on any channel of communication. Our comprehensive suite of APIs unlock proprietary machine learning algorithms that can ingest any form of conversation data to identify actionable insights across domains and channels (voice, email, chat, social) contextually – without the need for any upfront training data, wake words, or custom classifiers. Symbl is democratizing conversational tech to make collaboration effortless at scale. We provide the technology for organizations to deploy at scale our proprietary workplace productivity API so brands can optimize key workflows for knowledge workers or enhance the customer experience. Whether you are a seasoned developer or just starting to explore how to harness employee collaboration to fit your organization’s needs, our API can be customized for your specific applications. -
21
smallest.ai
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 -
22
Callin.io
Callin.io
AI voice assistant for businesses of every scale. Callin's AI-driven voice assistants are tailored to bolster the growth of businesses, handling inbound and outbound customer conversations. Quick to implement and built for impactful results, Callin AI agents are the quintessential team additions, encapsulating the AI features you’ve always imagined. Callin responds to unanswered calls consistently, 24/7, and handles calls from both external customers and internal employees. Outperforms human agents in turning leads into clients. Our AI voice agents are customizable to meet the specific needs of your business. Answer every incoming call, capture lead details, and book appointments on the spot. Follow up on missing documents and incomplete applications. Speed up the process and maximize conversion. Remind customers of upcoming payments and appointments, or share critical updates. Handle any number of calls in a language of your customers’ choice.Starting Price: $29 per month -
23
Azure AI Speech
Microsoft
Build voice-enabled apps confidently and quickly with the Speech SDK. Transcribe speech to text with high accuracy, produce natural-sounding text-to-speech voices, translate spoken audio, and use speaker recognition during conversations. Create custom models tailored to your app with Speech studio. Get state-of-the-art speech to text, lifelike text to speech, and award-winning speaker recognition. Your data stays yours, your speech input is not logged during processing. Create custom voices, add specific words to your base vocabulary, or build your own models. Run Speech anywhere, in the cloud or at the edge in containers. Quickly and accurately transcribe audio in more than 92 languages and variants. Gain customer insights with call center transcription, improve experiences with voice-enabled assistants, capture key discussions in meetings and more. Use text to speech to create apps and services that speak conversationally, choosing from more than 215 voices, and 60 languages. -
24
Feather
Feather
Feather is an AI-powered voice agent platform that lets businesses create, customize, deploy, and manage intelligent phone call automation that sounds human and handles real tasks at scale, supporting both inbound and outbound calling with context-aware memory, multilingual understanding, seamless warm handoffs to humans, and native telephony essentials like hold music and voicemail detection; its agents can access company knowledge bases for accurate answers, integrate with calendars and CRMs, book appointments, follow up on leads, and automate repetitive communication workflows so teams never miss opportunities and can focus on higher-value work. Built for production-grade reliability and enterprise use, Feather includes observability and quality testing tools to ensure consistent call performance, supports integrations via APIs and webhooks, and can be white-labeled for agencies and software providers while meeting compliance and data-security standards. -
25
ElevenAgents
ElevenLabs
ElevenLabs Agents is a platform for building, deploying, and scaling intelligent conversational AI agents that can speak, type, and take action across phone, web, and application environments. It enables developers and teams to create real-time agents that interact naturally with users through voice and text, combining speech-to-text, large language models, and text-to-speech into a unified system that functions like a human conversation partner. It allows agents to resolve customer issues, automate workflows, answer questions, and execute tasks based on connected data sources and predefined logic, making interactions both accurate and context-aware. These agents can be customized with knowledge bases, system prompts, and tools that enable them to access external systems, execute custom logic, and perform actions beyond simple responses. They support multimodal capabilities, meaning they can read, speak, and interpret inputs while handling conversational dynamics.Starting Price: $5 per month -
26
Wluper
Wluper
Wluper is an advanced voice-based conversational AI platform that allows workforces to leverage advanced natural language capabilities to create meaningful experiences. With a layer of unique language understanding skills, you can create and calibrate the workforce experience within your industry or sector, strengthen your position and empower your staff with an innovative solution that scales. -
27
Ori
Ori
Ori is an enterprise-grade generative-AI platform built to automate and scale customer interactions across voice, chat, email, and messaging channels, with full compliance, auditability, and multilingual support. It delivers AI-powered chatbots and voice bots capable of handling the full customer journey; lead qualification, conversational sales, onboarding, customer support, collections, renewals, and retention. Its core features include multilingual and omnichannel support, intelligent conversation flows with context awareness and sentiment detection, real-time compliance and script adherence (for regulated industries like finance and insurance), full audit trails, and seamless handoffs to human agents when needed. It supports voice-based conversations (speech recognition, natural-language responses), chat/text conversations, email responders, and hybrid bot-plus-live-agent workflows. -
28
InteliWISE
Matrix42
In the age of intelligent automation, we’re powering top brands with AI and Omni‐channel tools, for conversational service and commerce. We are a Conversational AI company, delivering smart chatbots, voicebots, omni-channel messaging and video collaboration software to over 150 brands. -
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Thoughtly
Thoughtly
Thoughtly helps businesses build and deploy human-like AI voice agents in just 17 minutes. Welcome to the future of calling. Empower your decision-making with comprehensive analytics, detailed reports, and A/B testing. Thoughtly provides real-time data visualization and performance metrics, enabling you to optimize communication strategies, understand customer behavior, and drive conversions more effectively. Your Thoughtly agent syncs with your calendar, working alongside callers to pinpoint the perfect meeting time. Coordinate effortlessly. Every incoming call is an opportunity. Your Thoughtly agent will never miss a call from a potential lead, intuitively directing them to the ideal point of contact. Perfect routing, every time, ready to convert. -
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Bland AI
Bland AI
Bland is an AI-powered platform that automates phone calls for enterprises, providing highly realistic conversational agents for tasks like sales, scheduling, and customer support. With its self-hosted, end-to-end infrastructure, Bland ensures fast response times, 99.99% uptime, and high security. The platform allows businesses to build custom phone agents that can interact in any language, handle complex workflows, and integrate with existing systems. Bland offers cost-effective, scalable AI solutions for enterprises, ensuring that calls are completed efficiently and in a personalized, natural-sounding manner. -
31
Triviat AI
Triviat AI
Triviat is a full-featured AI communication platform built for modern businesses that want to streamline customer support, sales, and appointment management. It allows companies to deploy intelligent voice and chat agents that work 24/7 across all major channels — including phone, web chat, email, SMS, WhatsApp, and social media. Triviat’s agents deliver human-like conversations in over 50 languages, making them ideal for global brands and multi-location service providers. Whether it’s handling appointment bookings, answering FAQs, processing orders, or qualifying leads, Triviat reduces support costs while improving speed and consistency. For complex interactions, conversations are smoothly handed off to human agents. With industry-specific use cases (e.g. retail, healthcare, hospitality, auto service), integrations with 5,000+ tools, and built-in compliance with GDPR and the EU AI Act, Triviat is a scalable and secure solution for AI-driven business communication.Starting Price: €75/month -
32
Floatbot
Floatbot.AI
Floatbot.AI is a powerful Voice-First, Multi-Modal Conversational AI + Co-Pilot Platform Floatbot.AI is a Multi-Modal Conversational AI (Voice first) + Co-Pilot Platform designed to supercharge operations in Insurance, Collections, Lending, Banking, and BPOs. From redefining customer engagement, streamlining processes to empowering agents and employees, we are your partner in driving smarter, faster and impactful business interactions. With our no-code/low-code platform, you can build powerful AI Agents in minutes—no technical expertise required. Floatbot.AI is trusted by 200+ top players in insurance, banking, & collections to innovate and scale customer engagement & operational excellence.Starting Price: $99 -
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Bolna
Bolna
Seamlessly onboard and scale your entire front desk operations to pick up every call. You do not need to be experienced with prompt engineering. We provide demo agents and templates to help you get started. Additionally, our enterprise plans include hands-on assistance in creating and testing your agents. We have integrations with the most natural AI voices that deliver human-like conversations. You can choose the voice that suits your use case perfectly. We already have integrations with leading CRMs and have a knowledge base where you can add documents. Bolna is the end-to-end open source production-ready framework for quickly building LLM-based voice-driven conversational applications. Automate all your customer conversations by building human-like voice AI agents in minutes. You can design your own functions and use them in Bolna. -
34
Cekura
Cekura
Cekura is an AI-powered platform designed to test, monitor, and ensure the quality of voice AI agents. It enables users to simulate thousands of real-world conversational scenarios using AI-generated and custom datasets to evaluate agent performance quickly. With parallel calling and real-time alerting, Cekura provides actionable insights and instant notifications about errors, failures, or performance drops. The platform features an intuitive dashboard that visualizes performance metrics, helping teams continuously improve their AI agents. Trusted by over 50 conversational AI companies, Cekura supports various industries including customer support, sales, recruitment, and healthcare. It is SOC2 Type 2 and HIPAA compliant, providing reliable security and privacy standards. -
35
CallFluent
CallFluent
We use realistic voices that create genuine connections with your customers resulting in better business outcomes. 97% of your customers won’t even tell they’re talking with an artificial intelligence-powered robot. Over 30 neural AI voices that replicate human emotions. Real-time call history, recordings & transcribes. 24/7 inbound & outbound automated call management. Accurate messages for perfect conversations. 3000+ options to integrate it into your existing workflow. From sales to customer service, AI voice agents are the most efficient & cost-effective way to manage calls. The smartest most cost-effective solution for your business. Sales teams often struggle to contact all their leads promptly. Using a voice agent you can now automate outbound calls for sales teams & close clients during phone calls. Never miss a sales opportunity with 24/7 automated lead outreach. Increase conversion rates by ensuring timely and consistent follow-up with every lead.Starting Price: $47 per month -
36
Skit
Skit.ai
Integrate voice & conversational intelligence into your products through an independent platform that is always learning. A next-gen multilingual Voice AI-powered contact centre automation platform that has been designed to have human-like conversations. VIVA uses a unique conversation design framework to understand intent. Dynamically generates custom conversations with customers. Supports 10 Languages and 160+ Dialects; available 24x7. Delivering high value through contact center optimization Voice AI banking solutions for a digital economy. Optimize your CX processes, costs, and resources with digital voice agents that can handle personalized, empathetic, and proactive conversations in real-time. Augmented Voice Intelligence is the new paradigm of expanding your workforce to combine the power of humans and machines. Augmented Voice Intelligence is collaborative in nature—a collaborative effort in service of customers. -
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Synthflow
Synthflow.ai
Easily create AI voice assistants to make outbound calls, answer inbound calls, and schedule appointments 24/7 - no coding required! Forget lengthy development cycles and expensive machine learning teams. With Synthflow you can build sophisticated, tailored AI agents without technical skills or coding - just bring your data and ideas. Over a dozen specialized AI agents are ready to use for question answering, document search, process automation, and more. Choose an agent as-is or customize it to suit your needs. Upload data instantly from PDFs, CSVs, PPTs, URLs and more. Your agent gets smarter with every new piece of data. No caps on storage or computing resources. Store unlimited vector data in your dedicated Pinecone environment. Gain full control and transparency over how your agent learns and improves. Give your AI agent superpowers by connecting it to any data source or service.Starting Price: €25 per month -
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Replicant
Replicant
Replicant is the world’s first autonomous contact center that brings always-on, elastic capacity to every customer experience with voice AI. Solve customer issues over the phone with flexible, natural-sounding AI-powered conversations that accurately recognize customer intent for fast resolutions. Answer every call immediately and eliminate hold times with 24/7 service available anytime, anywhere. Scale customer service up or down without ballooning costs, training new agents, offshoring, or planning for seasonal fluctuations. Dramatically reduce your customer service costs; only pay for what you use without committing to capacity. Measure overall customer satisfaction, track average handle time, and discover new trends like competitor mentions, defective products, and upsell opportunities to serve customers like never before. -
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OpenAI Realtime API
OpenAI
The OpenAI Realtime API is a newly introduced API, announced in 2024, that allows developers to create applications that facilitate real-time, low-latency interactions, such as speech-to-speech conversations. This API is designed for use cases like customer support agents, AI voice assistants, and language learning apps. Unlike previous implementations that required multiple models for speech recognition and text-to-speech conversion, the Realtime API handles these processes seamlessly in one call, enabling applications to handle voice interactions much faster and with more natural flow. -
40
Yandex SpeechKit
Yandex
Speech technologies based on machine learning to create voice assistants, automate call centers, monitor service quality, and perform other tasks. Leverage the advanced technology behind the wildly successful Alice voice assistant, now ready for use in your business. In a fraction of a second, SpeechKit accurately recognizes speech, allowing our clients' voice assistants to communicate quickly and easily. Choose the right version for you, the full version creates a smart voice assistant while the adaptive version gives your brand a unique voice in just a month. A solution for the most demanding customers who need to control speech processing and synthesis within their own infrastructure. SpeechKit’s ML models can now be deployed to your infrastructure. We offer both hybrid options and 100% on-premise deployments for sensitive traffic. The service can recognize audio in MP3, LPCM, and OggOpus formats.Starting Price: $0.000020 per unit -
41
Hamming
Hamming
Prompt optimization, automated voice testing, monitoring, and more. Test your AI voice agent against 1000s of simulated users in minutes. AI voice agents are hard to get right. A small change in prompts, function call definitions or model providers can cause large changes in LLM outputs. We're the only end-to-end platform that supports you from development to production. You can store, manage, version, and keep your prompts synced with voice infra providers from Hamming. This is 1000x more efficient than testing your voice agents by hand. Use our prompt playground to test LLM outputs on a dataset of inputs. Our LLM judges the quality of generated outputs. Save 80% of manual prompt engineering effort. Go beyond passive monitoring. We actively track and score how users are using your AI app in production and flag cases that need your attention using LLM judges. Easily convert calls and traces into test cases and add them to your golden dataset. -
42
Gemini Audio
Google
Gemini Audio is a set of advanced real-time audio models built on Gemini's architecture, designed to enable natural, fluid voice interaction and expressive audio generation through simple language prompts. It supports conversational experiences where users can speak, listen, and interact with AI in a seamless loop, combining understanding, reasoning, and response generation in audio form. It is capable of both analyzing and generating audio, allowing applications such as speech-to-text transcription, translation, speaker identification, emotion detection, and detailed audio content analysis. They are optimized for low-latency, real-time use cases, making them suitable for live assistants, voice agents, and interactive systems that require continuous, multi-turn dialogue. Gemini Audio also integrates advanced capabilities like function calling, enabling the model to trigger external tools and incorporate real-time data into responses.Starting Price: Free -
43
VoiceBooker
claiverly GmbH
VoiceBooker – the smart AI assistant for phone, chat, and WhatsApp. Ready to use in just a few minutes and requiring no programming skills, it answers calls, schedules appointments, assists callers, manages chats, creates conversation transcripts, and supports outbound calling. With seamless integrations into calendars, CRMs, and databases, as well as external systems via REST and MCP, VoiceBooker optimizes communication and automates workflows across multiple channels. Businesses can deploy VoiceBooker in the cloud or on-premise for maximum flexibility and data control. For expert and enterprise users, the platform includes a powerful multi-stage system with a graphical editor that enables the creation of highly sophisticated call flows and intelligent bots. Designed to scale with your needs, VoiceBooker helps teams improve efficiency, deliver consistent customer experiences, and transform the way organizations handle voice and digital communication.Starting Price: $0.15 per minute -
44
Intervo.ai
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.Starting Price: $10 per month -
45
Deepgram
Deepgram
Deploy accurate speech recognition at scale while continuously improving model performance by labeling data and training from a single console. We deliver state-of-the-art speech recognition and understanding at scale. We do it by providing cutting-edge model training and data-labeling alongside flexible deployment options. Our platform recognizes multiple languages, accents, and words, dynamically tuning to the needs of your business with every training session. The fastest, most accurate, most reliable, most scalable speech transcription, with understanding — rebuilt just for enterprise. We’ve reinvented ASR with 100% deep learning that allows companies to continuously improve accuracy. Stop waiting for the big tech players to improve their software and forcing your developers to manually boost accuracy with keywords in every API call. Start training your speech model and reaping the benefits in weeks, not months or years.Starting Price: $0 -
46
Convin
Convin
Convin is a conversation intelligence platform that integrates Generative AI to transform call center operations. It automates 100% of lead engagement using multilingual virtual agents and provides real-time assistance to agents during calls. By tracking and analyzing every interaction, Convin offers detailed insights into agent performance, customer sentiment, and key trends. The platform uses AI-powered quality assurance to ensure unbiased evaluations of all interactions, from calls to chats to emails. Convin’s deep analytics capabilities—such as conversation behavior analysis and customer intelligence—empower businesses to optimize agent-customer interactions, replicate successful behaviors, and identify opportunities for improvement. The platform seamlessly integrates with existing systems and supports 70+ languages, making it ideal for global organizations looking to scale their contact center operations effectively. -
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Voiceflow
Voiceflow
Voiceflow is an AI customer experience platform that helps teams build, launch, and scale advanced AI agents for support, lead generation, and other customer-facing workflows. It gives product, CX, support, engineering, and enterprise teams tools to design intelligent workflows, deploy integrated agents, and improve agents over time without full rebuilds. The platform supports omnichannel experiences across web, phone, and mobile, allowing businesses to create consistent AI-powered conversations across customer touchpoints. Voiceflow includes an agent builder, deterministic workflows, global instructions, guardrails, APIs, functions, observability tools, and production environments for development, staging, and launch. Its Agentic Context Engine helps turn complex conversations into enriched customer experiences while supporting high-volume usage and low-latency voice interactions.Starting Price: $40 per editor per month -
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Amazon Nova Sonic
Amazon
Amazon Nova Sonic is a state-of-the-art speech-to-speech model that delivers real-time, human-like voice conversations with industry-leading price performance. It unifies speech understanding and generation into a single model, enabling developers to create natural, expressive conversational AI experiences with low latency. Nova Sonic adapts its responses based on the prosody of input speech, such as pace and timbre, resulting in more natural dialogue. It supports function calling and agentic workflows to interact with external services and APIs, including knowledge grounding with enterprise data using Retrieval-Augmented Generation (RAG). It provides robust speech understanding for American and British English across various speaking styles and acoustic conditions, with additional languages coming soon. Nova Sonic handles user interruptions gracefully without dropping conversational context and is robust to background noise. -
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Vapi AI
Vapi AI
Voice AI for any application. Vapi lets developers build, test and deploy voicebots in minutes rather than months. Solutions for everything. Customer support, front desk, outbound sales, lead generation, telehealth, food ordering, transportation logistics, employee training, roleplay, or whatever else you want to build. We’re making voice AI’s as simple, reliable, and accessible as any other API in your stack. All the power with all the customizability. Plug in any model or voice, and talk to it everywhere.Starting Price: $0.05 per minute -
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Vida
Vida
Grow your business with AI phone agents that are smart, helpful, and available 24/7. Unlock the power of AI to handle calls for your business. Transform every call into an opportunity with AI that's always available. Boost revenue, enhance productivity, and delight customers. Describe what you want your agent to do. Choose a local number for your AI to use. Your agent will answer your calls and texts. Vida agents learn from instructions. Just describe what you want your agent to do when people call or text, and Vida will take care of the rest. No coding or technical skills are required. Give the agent your website, upload a doc, and Vida will learn from it. Vida agents engage with your customers just like a real person. Agents converse to understand problems, gather information, and triage solutions. Connect your agent to external data sources and let it solve real problems for your customers.Starting Price: $30 per month
