Grok Voice 3.0
Grok Voice 3.0 lets voice agents hear, reason, and reply in well under a second — benchmark-leading call accuracy from $0.08 per minute.
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How Grok Voice 3.0 Performs Under Real Call Load
Grok Voice 3.0 is a frontier speech-to-speech engine built for live voice agents — best-in-class call accuracy, human-speed turn-taking, and production-grade scale.
- Benchmark-Topping Speech ReasoningSits at #1 on the Artificial Analysis Speech-to-Speech Index with 86.9, a composite of speech reasoning, τ-Voice, and blind head-to-head preference.
- Conversation That Feels InstantLatency stays below one second, and a 97% Full Duplex Bench score means the model handles pauses, interruptions, and hand-offs like a person would.
- Battle-Tested at Starlink and TeslaRuns millions of daily conversations across Tesla and SpaceX, including 20,000 Starlink support calls a day, roughly 70% of which close without a human.
Putting Grok Voice 3.0 to Work
Four practical steps take you from Voice Agent API access to automated multilingual support calls.
Grok Voice 3.0 Benchmarks That Matter in Production
Accuracy, latency, robustness, and cost per task — the four numbers that decide whether a voice agent is ready to ship.
Record-Setting Call Resolution
Grok Voice 3.0 posts a new high for resolving customer support calls and holds #1 on the Artificial Analysis Speech-to-Speech Index at 86.9.
Turn-Taking That Sounds Human
A 97% Full Duplex Bench score shows how smoothly the model manages pauses, interruptions, and speaker hand-offs during live conversations.
Holds Up Under Accents and Noise
τ-Voice stress-tests agents with varied accents, noisy backgrounds, and interruptions; Grok Voice 3.0 scores 71.6%.
Smart Without the Slowdown
On τ-Voice it keeps pace with GPT-Live-1 (Astra) while running 40% faster, widening the frontier of agent intelligence and responsiveness.
Lower Spend per Completed Task
In Artificial Analysis's Big Bench Audio run, per-task cost lands below both GPT-Live-1 (Astra, Medium) and GPT-Realtime-2.1.
Enterprise-Grade Support Accuracy
On ServiceNow's EVA-Bench it leads at 74% accuracy and delivers the strongest combined accuracy-plus-customer-experience result.
Grok Voice 3.0: Common Questions Answered
Quick answers on Grok Voice 3.0 accuracy, latency, pricing, and how it holds up on real customer calls.
What exactly is Grok Voice 3.0?
It is positioned as the most intelligent speech-to-speech model available, and it ships in the API at the same rate as the previous version.
How accurate is it on benchmarks?
It holds #1 on the Artificial Analysis Speech-to-Speech Index with 86.9 and also scores 97% on Full Duplex Bench.
How quickly does it respond mid-call?
Latency stays below one second, and on τ-Voice it answers 40% faster than GPT-Live-1 (Astra).
What does Grok Voice 3.0 cost to run?
Rates have not moved: the Voice Agent API bills $0.08 per minute ($4.80 per hour), the same as Grok Voice 2.0.
Does it work for live customer support?
Yes — Starlink routes 20,000 customer calls a day through Grok Voice in multiple languages, and about seven in ten resolve without a human.
Will existing grok-voice-latest agents break?
No — agents on grok-voice-latest were switched over behind the scenes, with no changes needed on your end.
Ship Your First Grok Voice 3.0 Agent
Deploy a speech-to-speech agent that answers in under a second, resolves calls at enterprise scale, and still bills $0.08 per minute.