Grok Voice 2.0
Grok Voice 2.0Compare inon
Grok Voice 2.0 measured on 19 of 34 Realtime benchmarks19
BenchmarkByScoreRank
Agents8
Multimodal9
Legacy · saturated or no longer reported2
No benchmark matches
$0.08per minute
0.7 sfirst audio?
56.5τ-Voice
—released
session audio; text input charged separatelyPrice covers
Rankingat high effort?
Full ranking →···
11GPT Realtime Mini95.712Grok Voice 2.095.113Eleven Realtime v1 Max94.1Strong at
Alternatives?
ModelScoreCostPriceWhat changes
CheaperGPT Live 1low+2%-38%$0.05
OpenPersonaPlex 7B-4%——
BetterStepAudio 3 Realtime Preview+4%——
BetterQwen Audio 3.0 Realtime Plus+3%——KOpenRaon SpeechChat 9B-9%——ModelScoreCostPriceWhat changes
GPT Live 1low+2%-38%$0.05ModelScoreCostPriceWhat changes
GPT Live 1low+2%-38%$0.05StepAudio 3 Realtime Preview+4%——Qwen Audio 3.0 Realtime Plus+3%——ModelScoreCostPriceWhat changes
PersonaPlex 7BOpen-4%——KRaon SpeechChat 9BOpen-9%——KMoshiOpen-36%——NemotronLabs VoiceChat 11BOpen-44%——Benchmarks
in Speech & Voiceτ³-voice · Sierra · 1.0.1 · standard · retail59.6#2
τ³-voice · Sierra · 1.0.1 · standard · airline56#2
τ³-voice · Sierra · 1.0.1 · standard · telecom71.9#2
τ³-voice · Sierra · 1.0.1 · standard · overall62.5#2
FAQ
How much does Grok Voice 2.0 cost?›
$0.08 per minute.
Is Grok Voice 2.0 free to use?›
There is no free API; it costs $0.08 per minute.
How good is Grok Voice 2.0, and what is it best at?›
#4 of 17 in Realtime. Strongest at: Speech & Voice.
Is Grok Voice 2.0 better than GPT Realtime Mini?›
On Full-Duplex-Bench · AA subset v1/v1.5, Grok Voice 2.0 scores 95.1 vs 95.7 — about the same.
Is Grok Voice 2.0 open source?›
No, Grok Voice 2.0 is a closed model available through an API. The closest open-weights option here is PersonaPlex 7B.
What is Grok Voice 2.0?›
Grok Voice 2.0 is a closed speech & voice model from xAI.
What are the best alternatives to Grok Voice 2.0?›
GPT Live 1 (cheaper), PersonaPlex 7B (open weights).