grok-voice-transcribe-1.0 end of life

Grok's grok-voice-transcribe-1.0 speech-to-text model is deprecated and reaches end of life on October 2, 2026.

All requests to that model name are routed to grok-voice-transcribe-2.0 at the same price. xAI says the newer model has higher accuracy. You can make the switch explicit by setting model=grok-voice-transcribe-2.0.