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Introduction

Phonic is the speech-to-speech model company. Our models hear the caller’s audio directly and answer in natural speech, so the voice agents you build sound like a real conversation without trading away intelligence.

Our latest model, Phonic-1, is the most advanced speech-to-speech model for agentic tasks. Build, evaluate, and deploy agents on it with the API, our TypeScript and Python SDKs, the CLI, or the no-code agent builder, using the model ID phonic-1.

Every agent on Phonic-1 gets:

  • Tool calls while the caller is still talking, so the answer is ready the moment they stop
  • Frontier intelligence in real time, with sub-600ms latency from speech-in to speech-out, even through long, multi-step calls
  • Natural conversation that picks up on tone and hesitation and handles interruptions and turn-taking, even on noisy phone lines
  • 50+ languages, with mid-conversation switching in the same voice
  • Accurate pronunciation of URLs, emails, and alphanumerics
  • Enterprise readiness with SOC 2 Type II, HIPAA (BAA available), zero data retention, a 99.9% uptime SLA, and deployment options from Phonic Cloud to self-hosted
  • One price per minute, starting at $0.07, with no LLM pass-throughs or per-token charges

Get started

  1. Sign up at phonic.ai.
  2. Paste this prompt into your coding agent:
Install the Phonic plugin from the Phonic-Co/skills marketplace
in Claude Code, including its skills and MCP connection.
Help me complete sign-in, then help me get started with Phonic.

Build

See the API reference for the full surface.

TypeScript SDK

Install the SDK and make your first call.

Python SDK

Install the SDK and make your first call.

CLI

Drive the API from your terminal.

Example use cases

Phonic agents are already handling conversations like these in production:

Customer Service

Field support inquiries — order or booking changes, refunds, account changes, and escalation options.

Recruiting

Conduct structured real-time voice interviews, evaluates candidates against role fit, and fits into hiring workflows.

User Research

Conduct qualitative user interviews with open-ended discovery, neutral probing, and no leading.

Patient Intake

Run patient intake, confirms or reschedules appointments, and hands urgent cases off to a nurse line.

Next Steps

Want to go deeper? Start here:

  • Conversations — compare webhook and WebSocket conversations
  • Tools — learn about the tool types available on Phonic
  • Prompting guide — write effective prompts for voice agents