SpaceXAI Releases Grok Voice Transcribe 2.0: A Speech-to-Text API Claiming 2x Accuracy Over 1.0 at $0.10 per Hour
SpaceXAI has released Grok Voice Transcribe 2.0, its newest speech-to-text (STT) model. The development team claims it to be twice as accurate as Grok Voice Transcribe 1.0 at the same price. The model targets hard audio: noisy phone lines, competing voices, local accents, and spoken credentials. It runs in batch and real-time streaming modes through the Speech to Text API. Is it deployable? Yes, as a hosted API. It is live today under the model ID grok-voice-transcribe-2.0. SpaceXAI has not
SpaceXAI has released Grok Voice Transcribe 2.0, a speech-to-text API that converts spoken audio into written text and claims to be twice as accurate as its previous version while maintaining the same pricing of $0.10 per hour for batch processing. The model is designed to handle challenging audio conditions including noisy phone lines, multiple speakers, accents, and credentials, and it supports dozens of languages with automatic language detection and mid-recording language switching. It matters because the update significantly reduces word errors in short phrases across 19 languages, dropping from 20.6% to 6.8% error rate, and the company reports it ranks first among 32 streaming models on a public accuracy benchmark. The API is available only as a hosted service rather than open-source weights, and it includes features like speaker identification, word-level timestamps, and multichannel transcription at no additional cost.
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