xAI
xAI builds Grok, an AI chatbot with voice chat, image and video generation, real-time search, and advanced reasoning. Try Grok at grok.com.
TL;DR
- Grok STT and TTS are new standalone audio APIs from xAI.
- APIs offer high accuracy, low latency, and support for 25+ languages.
- Features include word-level timestamps, speaker diarization, and multichannel support.
- Inverse Text Normalization intelligently formats spoken language into structured output.
- TTS supports natural prosody and emotion using speech tags.
- Pricing for STT is $0.10/hour (batch) and $0.20/hour (streaming).
- Pricing for TTS is $4.20 per 1 million characters.