Text-to-Speech is available

Speech to Text is available The xAI Speech to Text API is now generally available. Transcribe audio to text in 25 languages with batch and streaming modes. For more details, check out the Speech to Text docs .

Text-to-Speech is available The Text-to-Speech API is now generally available. Generate natural-sounding speech from text with Grok. For more details, check out the Text-to-Speech docs . Mar 15

Adjustable VAD threshold for Speech to Text Speech to Text now accepts a vad_threshold parameter (streaming query param and batch multipart field) to tune the voice-activity gate that skips non-speech audio. Lower values transcribe quieter or noisier speech — useful for narrowband telephony — and 0 disables the gate. See the Speech to Text docs . July 17