Grok Voice Think Fast 1.0 (xAI news) Apr 23, 2026
Grok Voice Think Fast 1.0
Grok Voice Think Fast 1.0 places in the top three on τ-Voice.
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Benchmarks with a score
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Ranked first, out of five or more models
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In the top three
xAI Apr 2026
Grok Voice Think Fast 1.0
Closed weights Flagship
No Epoch Capabilities Index score yet
- τ-Voice 67.3% #2 /7
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Vision, audio and robotics
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| τ-Voice | 67.3% | #2 of 7 | Official leaderboard | |
| Audio Arena | 75.9 | #5 of 6 | Official leaderboard |
Its lab's number next to a leaderboard
Where the benchmark's own leaderboard, or Epoch AI's run, also has this model. Gaps mostly come from different harnesses, effort levels and task subsets. Every pair.
Its launch post
The benchmarks the lab chose to headline, with the scores it gave.