Grok Speech to Text
Use Grok Speech to Text through Speechall’s unified speech-to-text API. Rates represent USD credit usage; review purchase fees in your billing quote. Check the features and limits below before switching models.
Grok Speech to Text (STT) is xAI's standalone speech recognition API for batch and real-time transcription. It supports multilingual transcription, word-level timestamps, speaker diarization, multichannel audio, keyterm prompting, Inverse Text Normalization, and real-time interim results over WebSocket.
Model ID
xai.grok-stt
Use this ID when making API calls to reference this model
Provider
SpaceXAI
Model Type
ASR
Accuracy Tier
premium
Release Date
April 17, 2026
Supported Languages
File transcription credit usage
$0.10000/audio hour
$0.00003/audio second
Maximum File Size
500.00 MB
Supported capabilities and functionalities
Core Features
Subtitle Formats
Input/output formats and technical details
Subtitle Format Support
Supported Audio Encodings
Supported Sample Rates
From model comparison to your first transcript
- Create a Speechall account and create an API key in the console.
- Review your credit balance and purchase quote. Usage draws down prepaid credits; checkout shows purchase fees and conversion.
- Test models with your own audio in the playground, then follow the API quickstart.