Grok Voice 3.0
Hear how Grok Voice 3.0 handles live calls in under a second — test the speech-to-speech engine free in your browser, no setup required.
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The Engineering Edge of Grok Voice 3.0
Built for live conversation, Grok Voice 3.0 pairs benchmark-leading accuracy with near-instant replies, so agents can close real customer calls without a human.
- Benchmark-Leading Conversation AccuracyHolds the top spot on Artificial Analysis's Speech-to-Speech Index with an 86.9 score, drawn from speech reasoning, τ-Voice, and blind side-by-side preference tests.
- Replies in Under a Second, Both WaysLatency stays below one second, and a 97% Full Duplex Bench result shows the model handles pauses, turn-taking, and interruptions the way people do.
- Already Running at Starlink VolumeHandles millions of daily conversations across Tesla and SpaceX, including 20,000 Starlink support calls a day — roughly seven in ten resolved with no human involved.
How to Put Grok Voice 3.0 to Work
From the first API call to multilingual call automation, here is the short path to shipping a voice agent with this model.
Grok Voice 3.0 Capabilities Built for Production
Four numbers decide whether a voice agent ships: how accurate it is, how fast it answers, how well it copes with noise, and what each task costs.
Independent Benchmark Leadership
Sets a fresh record for resolving support calls and takes the top spot on Artificial Analysis's Speech-to-Speech Index at 86.9.
Conversational Rhythm That Feels Human
A 97% Full Duplex Bench score captures how well the model reads pauses, hands over turns, and absorbs interruptions mid-sentence.
Holds Up Against Accents and Background Noise
τ-Voice runs agents through support calls with varied accents, noisy rooms, and interruptions; the model lands at 71.6%.
Smart Without Getting Slower
On τ-Voice it keeps pace with GPT-Live-1 (Astra) while running 40% faster, widening the range where an agent can be both sharp and quick.
Cheaper on Every Task
In Artificial Analysis's Big Bench Audio run, per-task spend comes in under both GPT-Live-1 (Astra, Medium) and GPT-Realtime-2.1.
Accuracy That Survives Enterprise Calls
ServiceNow's EVA-Bench records the highest accuracy score at 74%, along with the strongest combined accuracy and customer-experience result.
Grok Voice 3.0: Questions Answered
Quick answers on how this speech model scores, how fast it replies, what it costs, and how it behaves on live customer calls.
What exactly is Grok Voice 3.0?
It is a speech-to-speech model presented as the most intelligent of its kind, and it is available in the API now at the same rate as the previous version.
How well does it score on benchmarks?
It holds first place on Artificial Analysis's Speech-to-Speech Index at 86.9 and reaches 97% on Full Duplex Bench.
What latency can I expect during a call?
Replies arrive in under a second, and on τ-Voice it runs 40% faster than GPT-Live-1 (Astra).
What does it cost to run?
Nothing changed: the Voice Agent API bills $0.08 per minute, or $4.80 per hour, exactly what Grok Voice 2.0 charged.
Does it work on real support traffic?
Yes. Starlink's call centers send 20,000 customer calls a day through it in multiple languages, and about seven in ten close without a human taking over.
Will existing grok-voice-latest agents need work?
No. If your agent already targets grok-voice-latest, the upgrade was applied behind the scenes and nothing in your setup has to change.
Ship Your First Agent with Grok Voice 3.0
Run the top-ranked speech-to-speech model with replies in under a second, call resolution proven at enterprise scale, and flat $0.08/min API pricing.