Grok Voice
xAI · 6 tracked releases · April 17, 2026 – October 14, 2026
At a glance
| Releases tracked | 6 |
|---|---|
| First tracked | April 17, 2026 — Grok STT |
| Latest | October 14, 2026 — Grok Voice 3.0 |
| Span | 180 days |
| Median gap | 26 days between releases |
| Weights | Proprietary throughout |
| Record quality | 6 of 6 verified · how this is judged |
Release cadence
One tile per tracked release, placed in the month it shipped, so the pauses in this line are the pauses in the data. Years with nothing tracked keep their row.
- 2026
- Grok STT, xAI, April 17, 2026Grok TTS, xAI, April 17, 2026Grok Voice Think Fast 1.0, xAI, April 23, 2026
- Grok Voice Think Fast 2.0, xAI, July 29, 2026
- Grok Voice Transcribe 2.0, xAI, September 18, 2026
- Grok Voice 3.0, xAI, October 14, 2026
Lineage
Ordered by announcement date, and spaced by the gap between releases, so a quiet year looks like one. Lineage is not inferred from version numbers — labs do not number consistently, so the dates decide the order.
-
+6 days
-
+97 days
-
+51 days
-
+26 days
What changed
Generation to generation, from evidenced values only. A field is compared only where both releases record it — otherwise it is called out as not comparable, so a research gap never reads as a change the lab made.
Across every generation of this family, capabilities and modalities could not be compared — the values are not recorded on both sides of any step. That is a gap in this dataset, not a statement about the models. See data quality.
Grok Voice Think Fast 1.0 → Grok Voice Think Fast 2.0 97 days
No change in any field both releases record.
Compare the two most recent side by side →
All releases from xAI →