
Tone
6.6#11 in ai voice agents$0.09 usage-basedFree planWebAPISelf-hosted
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| Fact | Tone | Vapi |
|---|---|---|
| Integrations | Listed integrations include OpenAI, Anthropic, Google Gemini, Mistral, Llama, ElevenLabs, Cartesia, PlayHT, Deepgram, Whisper, AssemblyAI, Twilio, Telnyx, Plivo, LiveKit, HubSpot, Salesforce, Zapier, n8n, Slack, Notion, Confluence, and GoHighLevel. | Documented prebuilt or standard integrations include Make, n8n, Google Calendar, Google Sheets, Slack and GoHighLevel. |
| Self-hosting | Tone can be started with Docker Compose and includes a Kubernetes Helm chart, with Postgres, Redis, and ClickHouse in the example stack. | Vapi's FAQ states that on-premise deployment is not supported. |
Tone suits developers and teams building voice agents across phone, web-widget, or chat channels. Its self-hosting and workflow tools may also suit organizations that want control over deployment and agent logic.
Vapi suits developers and businesses building voice agents with telephony, model choices, integrations, and monitoring. It is useful when teams need multilingual conversations, testing, analytics, or enterprise controls.