xAI's Grok Voice Transcribe 2.0 Doubles Accuracy, Keeps $0.10/Hour
xAI's updated speech-to-text model promises twice the accuracy of its predecessor at the same batch price point.
xAI has quietly rolled out Grok Voice Transcribe 2.0, its next-generation speech-to-text model, on September 18, 2026. The company is holding batch pricing steady at $0.10 per hour of audio, a move that keeps the entry cost unchanged while promising substantially better performance.
The headline claim is a doubling in accuracy relative to Grok Voice Transcribe 1.0. That figure comes directly from xAI's announcement, but the source does not specify how accuracy was measured or which benchmarks were used. The model is described as being built on the audio side of xAI's stack, though further architectural details are not provided in the article.
Because there is only one source, there is no independent verification or contrasting view to compare. The pricing and release date are concrete, but the accuracy improvement remains a vendor claim until third-party tests appear.
Sources · 2
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