Grok Voice Think Fast 2.0 High is still the #
1# speech-to-speech model.....and it has been insanely hard to beat at actually getting the task done
Outperforming GPT-Realtime 2.1 High and every other model on the benchmark
And this isn’t just measuring how good the voice sounds
The index combines speech reasoning, agentic performance, human preference and actual task success
Grok Voice does not just sound good.....it understands, reasons and actually gets things done
Right now, it is leading the entire speech-to-speech stack