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Grok Voice Transcribe 2.0
xAI's speech-to-text model behind its STT API, with batch and streaming modes in 38+ languages.
- xAI
- Closed
- Released 18 Sep 2026
Where it ranks
- STranscriptionModels · Cloud · 2.3% on Artificial Analysis Speech to Text: AA-WER v2 (non-streaming)
Facts
- Vendor
- xAI
- Family
- Grok Voice Transcribe
- Released
- 18 Sep 2026
- Weights
- Closed: API and apps only
- License
- proprietary
- API price
- $0.0017 per minute of audio (Batch $0.10 per hour of audio divided by 60; streaming is $0.20 per hour.)
- Last verified
- 18 Oct 2026
Price from docs.x.ai, 18 Oct 2026.
Benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| Artificial Analysis Speech to Text: AA-WER Streaming | 2.7% | Grok Voice Transcribe 2.0 (Streaming)AA-WER Streaming index (final transcripts), provider SpaceXAI; embedded value 0.027279 converted to percent and rounded; page shows no last-updated date. | 19 Oct 2026 | artificialanalysis.ai |
| Artificial Analysis Speech to Text: AA-WER v2 (non-streaming) | 2.3% | Grok Voice Transcribe 2.0AA-WER v2 (non-streaming), provider SpaceXAI; embedded value 0.0229 converted to percent and rounded; page shows no last-updated date. | 18 Oct 2026 | artificialanalysis.ai |
Where you can use it
No tracked tool lists this model yet.