Voice API for transcription, text to speech and voice agents, billed per minute, in the cloud or self-hosted.
Voice agents: AI tools compared (October 2026)
How results are ranked: How we review
Results
AI customer agent from the company formerly called Intercom that resolves chat, email and voice requests and also runs on other helpdesks.
AI agents for support teams that resolve requests on chat, email and voice, triage tickets and score service quality.
French speech-to-text API for 100+ languages, run by default on a European cloud provider in France.
Contact center platform that scores every conversation with Auto QA, plans coaching and resolves calls and chats with AI agents.
Speech recognition API from Cambridge for realtime and batch, 55+ languages, speaker diarization, cloud or self-hosted.
Platform for AI customer service agents on chat, voice and email, with a free plan and data hosting in six regions.
Canadian platform for customer service AI agents across messaging, voice and email, with playbooks for complex procedures.
Contact center AI with real-time agent guidance, automatic quality scoring of every conversation and the Togo AI voice agent.
Conversation intelligence for contact centers: analyzes all customer interactions, coaches agents live and runs voice agents with OmniAgent.
AI platform for large contact centers that scores every conversation, plans coaching, guides agents live and resolves calls with AI agents.
US conversational AI platform for customer service agents on chat, email and voice, with workflows written in natural language.
Customer service platform for retail brands with AI agents for chat and voice, an agent copilot and one lifelong customer conversation.
US enterprise platform for building voice and digital AI agents, with agent assist and AI quality scoring for contact centers.
Platform from Berlin on which contact centers design, test and run AI agents for phone, chat and messaging.
British provider of enterprise AI voice agents that handle calls with its own dialog model, billed per minute.
US vendor of AI voice and chat agents for enterprise contact centers, sold on a flat annual fee with conversation analytics included.
US platform for AI customer service agents on chat, voice, email and messaging, built without code and priced by outcomes.
US cloud contact center platform with AI agents for voice and digital, an agent copilot, AI routing and automated quality scoring.
AI agent platform for customer service with a rules-based decision engine, quality scoring of every conversation, chat, email and voice.
AI platform for enterprise contact centers with GenerativeAgent, human-in-the-loop workflows, voice AI and conversation insights.
US platform for support teams with AI agents for chat, email and voice, an AI copilot and workforce management in one place.
Voice AI agents for providers, payers and pharma that call, remind and follow up with patients.
US contact center platform with automated conversation scoring, agent assist, customer insights and AI virtual agents for voice and chat.
AI agent platform from Boston for enterprise customer support, with chat, voice and a copilot for Zendesk and Salesforce.
Platform from Düsseldorf for AI agents in contact centers across phone, chat and messaging, part of NiCE since 2025.
AI agents for customer service across channels, with assistants for human agents, voice AI, conversation analysis and AI Studio.
AI for rental operators that answers prospects and residents by phone, text, email and chat and automates maintenance.
Paper from the Paris lab Kyutai on Moshi, a speech-text model for real-time dialogue that listens and speaks at the same time.
Sierra's benchmark for AI agents that talk to users, call tools and follow policy in retail, airline, telecom and banking.
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