🎙️ Voice Agents
Voice agents hold real-time spoken conversations — answering calls, qualifying leads, and handling support with sub-second latency. The category covers full phone-agent platforms and the speech infrastructure underneath them.
Agentset
Production RAG platform with reasoning, hybrid search, and full multimodal support.
Google Cloud Speech-to-Text v2
Google Cloud streaming and batch speech recognition API v2 with improved accuracy, streaming, and noise suppression for real-time agent pipelines.
LiveKit Agents
Framework for building real-time, multimodal AI agents with voice, video, and data channels.
Nuance AI
Enterprise speech and conversational AI platform for clinical and contact-center workflows with HIPAA-capable deployments.
Pipecat
Production-grade voice AI framework with sub-250ms latency, WebRTC support, multimodal (voice+vision+text), real-time streaming, and 70+ language support.
PolyAI
Enterprise voice AI platform for natural multi-turn conversations with high-volume call handling.
Rasa
Open-source conversational AI framework with self-hosted NLU training and dialogue management.
Wispr Flow
Voice orchestration platform for multimodal AI agents with 50+ language support, workflow building, and enterprise integrations.
How to choose voice agents
- Test latency and interruption handling first — they make or break the experience
- Check telephony integrations (SIP, Twilio) for call-center use
- Evaluate voice quality and language coverage for your market
Common use cases
- 24/7 AI phone answering and appointment booking
- Outbound lead qualification calls at scale
- Voice interfaces for products and devices
FAQ
What are the best voice agents in 2026?
AgentIndexed currently lists 8 voice agents, including Agentset, Google Cloud Speech-to-Text v2, LiveKit Agents, Nuance AI and more. Featured placements appear first, then all tools alphabetically.
How do I choose between voice agents?
Test latency and interruption handling first — they make or break the experience Check telephony integrations (SIP, Twilio) for call-center use Evaluate voice quality and language coverage for your market.
How do I add my tool to this list?
Submit it free on the submit page (reviewed in 5–7 days), or go Featured for $49 to be reviewed within 24 hours and placed at the top of this category.
Want the #1 spot in Voice Agents?
Featured agents appear first in this category and on the homepage. One-time $49, live within 24 hours.
Get featured →