[X]score: 0.22
Try the most natural TTS and cost-effective STT APIs in @Vapi_AI
June 3, 2026
Grok STT and Grok TTS from xAI are now available on Vapi's enterprise voice AI platform, enabling developers to build voice agents using xAI's speech models. Vapi positions Grok TTS as more natural-sounding and Grok STT as cost-effective relative to existing options on the platform.