Grok Voice Transcribe 2.0 Release Details
xAI released Grok Voice Transcribe 2.0 in September 2026. It is now the default speech-to-text model, with version 1.0 remaining selectable.
Release Announcement and Default Status
The source event date is recorded as September 1, 2026, with estimated time precision. This historical date distinguishes the announcement from the current publication date. According to the official changelog, xAI released Grok Voice Transcribe 2.0 in September 2026. The documentation states that grok-voice-transcribe-2.0 is now available and serves as the default model for speech-to-text operations. Users are directed to consult the Speech to Text docs for further details. The previous version, grok-voice-transcribe-1.0, remains an option for selection.
Confirmed Specifications and Unknowns
Grok Voice Transcribe 2.0 accepts audio input and produces text output. The provider is identified as xAI. The source records that open weights are not confirmed for this model. This status does not establish whether local installation is possible or impossible, nor does it mandate API-only access. No pricing information, context window limits, or maximum output token counts are provided in the source material. Consequently, no conclusions can be drawn regarding cost structures or architectural deployment requirements based solely on this release note.
- Input Modality: Audio
- Output Modality: Text
- Open Weights: Not Confirmed
- Pricing: Not Provided
Proposed Evaluation Procedure
Engineers can evaluate the model by designing a controlled test environment. First, select a representative dataset of audio files covering various accents, noise levels, and speech speeds. Next, run these files through both grok-voice-transcribe-1.0 and grok-voice-transcribe-2.0 using identical parameters. Measure transcription accuracy by comparing the generated text against ground-truth transcripts. Additionally, measure latency and throughput for each version. Finally, compare the results to determine if measurable differences exist. This process validates operational behavior without assuming inherent improvements.
Primary sources
Frequently asked questions
Is Grok Voice Transcribe 1.0 still available?
Yes, the source states that users can use either grok-voice-transcribe-1.0 or grok-voice-transcribe-2.0. While version 2.0 is the default, the previous version remains an option for selection.
Does the release confirm open-weight access?
No. The source records that open weights are not confirmed. It does not state that local installation is impossible, nor does it mandate API-only access. The hosting arrangement remains unspecified in the provided facts.