TTS.ai vs Vapi
Compare TTS.ai and Vapi for building AI voice agents and phone bots.
| Feature | TTS.ai | Vapi |
|---|---|---|
| Primary Use | Full AI voice platform | Voice AI developer platform |
| AI Agents | No-code + API agents | Developer-first API |
| TTS Models | 20+ built-in models | ElevenLabs, PlayHT, etc. (external) |
| Free Tier | 15,000 characters + free TTS | $10 free credit |
| Pricing | From $9/mo | $0.05/min + provider costs |
| Phone Integration | Twilio (BYOT + managed) | Built-in + Twilio |
| Voice Cloning | 9 built-in models | Via external providers |
| Transcription | Built-in Whisper + SenseVoice | Via external providers |
| Audio Tools | 45+ tools | Not available |
| No-Code Builder | Web UI agent builder | Dashboard + API |
Why choose TTS.ai?
All-in-one platform (TTS, STT, cloning, tools)
No external provider dependencies
Predictable subscription pricing
45+ audio tools included
Voice marketplace and community voices
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