Benchmark Almanac

Grok Voice 2.0

Grok Voice 2.0 places in the top three on 4 benchmarks.

xAI Released July 29th, 2026 Family Grok Voice The lab's model card Compare with others
8
Benchmarks with a score
0
Ranked first, out of five or more models
4
In the top three
xAI Jul 2026

Grok Voice 2.0

Closed weights Flagship

No Epoch Capabilities Index score yet
  • τ-Voice 62.5% #3 /7
  • Cekura Agent Performance 67.1% #3 /5
  • Cekura Turn Bench 73.7% #5 /5

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.

Agents and tools

BenchmarkScoreRankSource
τ-bench 2.0 71.4% #2 of 3 Official leaderboard

Vision, audio and robotics

BenchmarkScoreRankSource
Big Bench Audio 97.2% #2 of 7 Lab model card
τ-Voice 62.5% #3 of 7 Official leaderboard
EVA-Bench 0.52 #4 of 8 Official leaderboard
Audio Arena 80.5 #3 of 6 Official leaderboard
Cekura Agent Performance 67.1% #3 of 5 Official leaderboard
Cekura Turn Bench 73.7% #5 of 5 Official leaderboard
Speech-to-Speech Index 82.9 #2 of 2 Lab model card

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.

Benchmark Lab says Board says Gap
τ-Voice 56.5% Agentic Performance τ-voice Bench (per Artificial Analysis) 62.5% Leaderboard, high −6.0 pts

Its launch post

The benchmarks the lab chose to headline, with the scores it gave.