technologyDevelopingUpdated 3 h ago · since 19 Sept 2026

SpaceXAI releases Grok Voice Transcribe 2.0 speech-to-text model

According to IT之家, SpaceXAI released Grok Voice Transcribe 2.0 on September 18, which reduces error rates by approximately half while maintaining the same pricing as the previous version. The model currently tops the Artificial Analysis leaderboard for streaming models and is already powering voice agents in Tesla vehicles and handling millions of hours of video transcription daily.

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SpaceXAI releases Grok Voice Transcribe 2.0 speech-to-text model
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Key facts

  1. 01SpaceXAI released Grok Voice Transcribe 2.0 on September 18, reducing error rates by about 50% compared to the previous version without changing prices.
  2. 02The model ranks first in accuracy among all 32 streaming models on the Artificial Analysis leaderboard.
  3. 03Internal evaluations on four datasets (customer service calls, daily conversations, dictated info, and multilingual commands) showed 2.0 outperforms 1.0 across the board.
  4. 04Pricing remains unchanged: $0.10 per hour for batch transcription and $0.20 per hour for real-time streaming.
  5. 05The underlying audio foundation model powers real-world applications, including handling tens of thousands of customer calls daily and driving voice agents in Tesla vehicles.

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