ToolsSeptember 19, 2026via MarkTechPost
SpaceXAI Releases Grok Voice Transcribe 2.0: A Speech-to-Text API Claiming 2x Accuracy Over 1.0 at $0.10 per Hour
Why it matters
A meaningful capability jump in a commodity API service. Practitioners using speech-to-text should evaluate whether the 3x WER improvement justifies migration; the stable pricing removes friction.
Key signals
- Short-phrase WER: 20.6% → 6.8% (68% reduction)
- 19 languages supported
- Pricing: $0.10/hour batch, $0.20/hour streaming (unchanged)
- Available immediately via Grok Voice API
- Supports batch and streaming audio
- Published Sep 18, 2026
- WER improvement: 20.6% → 6.8% (short-phrase, 19 languages)
- 19-language support
- Batch and streaming modes
- Available today via Grok Voice API
The hook
WER dropped from 20.6% to 6.8% across 19 languages. Grok Voice Transcribe 2.0 is live at the same $0.10/hour price.
SpaceXAI has released Grok Voice Transcribe 2.0, its newest speech-to-text model for batch and streaming audio. The company says it is twice as accurate as version 1.0 at the same price. Short-phrase word error rate across 19 languages fell from 20.6% to 6.8%. Pricing stays at $0.10 per hour for bat…