Phonic
Build voice agents as natural as humans
Phonic is a speech-to-speech voice agent platform for building, deploying and managing voice agents that handle phone calls and browser-based conversations. It addresses the challenge of creating voice agents that sound natural and respond quickly, using Phonic's own audio models to process tone and hesitation alongside words, with frontier models acting as supervisor agents for tool calling and reasoning.
The platform supports connections through webhooks, websockets and LiveKit, along with over 1,000 no-code integrations. Agents can be configured with custom instructions, conversation flow, context injection and post-call handling, and can trigger external workflows via internal APIs. Phonic supports 50+ languages and offers deployment options including multi-tenant cloud, single-tenant, VPC peering and self-hosted environments, with SOC 2 Type II certification and HIPAA compliance available.
Phonic is aimed at developers and teams building production voice agents for use cases such as customer support, outbound sales and automated phone screening. It is packaged in three editions: a Starter plan with free monthly credits, a Pro plan with additional seats, agents and concurrency, and a custom Enterprise plan. Pricing is usage-based per conversation minute, with seat-based workspace limits varying by plan.
12 alternatives to Phonic
Ranked by how well each tool replaces Phonic: shared features, audience, price and popularity.
Speech services for building apps that transcribe, translate, and synthesize speech
Covers 0 of 15 key features.
Free plan65 out of 100 matchUsage-based- 65 out of 100 match$6/mo
- 63 out of 100 matchUsage-based
Speech-to-text, text-to-speech and voice agent APIs for real-time and batch audio, usable
Covers 1 of 15 key features.
Free plan62 out of 100 matchUsage-basedFrontier voice AI company building the world's first Ensemble Listening Model that outperf
Covers 1 of 15 key features.
Free plan62 out of 100 matchUsage-based- 62 out of 100 match$9/mo
The data and evaluation layer for emotionally intelligent voice AI.
Covers 0 of 15 key features and starts cheaper.
Free plan60 out of 100 match$3/moSpeech-to-text and speech understanding APIs for voice AI applications
Covers 1 of 15 key features.
Free plan60 out of 100 matchContact salesListen to text aloud, use voice typing, and get fast answers with Speechify — Voice AI
Covers 0 of 15 key features and starts cheaper.
Free plan60 out of 100 match$29/moThe AI agent platform for customer experience automation.
Covers 0 of 15 key features.
Free plan60 out of 100 matchUsage-based- 59 out of 100 matchContact sales
Powerful Speech Platform – Text to Speech API, Speech Recognition API, Open Source SDKs
Covers 0 of 15 key features.
Free plan59 out of 100 matchUsage-based