Phonic

Speech-to-speech platform for building low-latency voice agents with tools and telephony.

Overview

Phonic is a speech-to-speech voice-agent platform for enterprise conversations. Its audio models handle spoken input and output, while agents can use tools and frontier models for reasoning. Teams can build agents in the platform, connect through webhooks or WebSockets, use a LiveKit integration, and keep searchable records of interactions. Deployment options include multi-tenant cloud, single-tenant infrastructure, VPC peering, and self-hosting for enterprise customers.

Key features

Audio-native speech-to-speech agents
No-code agent builder
Webhook and WebSocket conversations
LiveKit integration
Inline and predefined tools
Multilingual voice agents
Searchable interaction records
Self-hosted enterprise deployment

Use cases

Show all 8Show fewer

Alternatives

Hume AISpeech-to-speech voice interface that responds to language, tone, rhythm, and vocal expression.ai agentFree trial
Retell AIPlatform for building, testing, and deploying AI voice agents for phone and chat.ai agentFreemium
SindarinLow-latency voice AI platform for configuring conversational personas with no-code or code.ai agentPaid
Fine TunerNo-code AI agent builder site (fine-tuner.ai); product surface unclear / overlapping Synthflow stack.AI tool
FixieFixie.ai now ships Ultravox — speech-native realtime voice ai agents and APIs.AI toolFreemium
Gradient LabsSpecialist ai agents for financial-services customer operations, disputes, collections, onboarding, and claims.ai agent

Last updated 2026-09-16