Grok Voice 3.0 Speech Model
Meet the Grok Voice 3.0 Speech Model: resolve more support calls, hear replies in under a second, and run live voice agents at a lower cost per task.
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How the Grok Voice 3.0 Speech Model Powers Live Calls
A speech-to-speech engine designed for production voice agents, combining high support resolution, near-instant replies, and proven scale across Tesla and SpaceX.
- The Smartest Speech-to-Speech Engine AvailableIt completes more support conversations without a human than earlier models, and its response speed makes callers feel like they are speaking with a person.
- Advanced Intelligence at a Lower PriceOperational costs stay below other frontier systems, while API access is priced the same as the prior Grok Voice 2.0 release.
- Millions of Conversations Every DayFrom Tesla vehicles on the road to SpaceX Starlink contact centers, the model handles millions of live conversations daily.
How to Deploy Grok Voice 3.0 for Voice Agents
Four practical steps take you from API access to live voice agents powered by Grok Voice 3.0.
Key Grok Voice 3.0 Speech Model Capabilities
Leading benchmark accuracy, natural turn-taking, and lower task costs for production-grade voice agents.
Top Rank on the Speech-to-Speech Index
Artificial Analysis ranks it first with 86.9, combining speech reasoning, τ-Voice, blind head-to-head preference, and task success.
97% on Full Duplex Bench
Full Duplex Bench measures turn-taking, pauses, and interruption handling; the model scores 97%.
τ-Voice Results With 40% Less Latency
τ-Voice tests accented speech, noisy rooms, and interruptions; it reaches 71.6%, matching GPT-Live-1 (Astra) while answering 40% faster.
Lower Cost per Task
Task-level cost figures from Artificial Analysis's Big Bench Audio run put it below GPT-Live-1 (Astra, Medium) and GPT-Realtime-2.1.
Best EVA-Bench Enterprise Accuracy
On ServiceNow's EVA-Bench for enterprise voice agents, it records the highest accuracy at 74% and the strongest combined accuracy-plus-customer-experience score.
Call Center Automation in Production
Starlink contact centers use it for 20,000 inbound calls daily in multiple languages; about seven in ten resolve without a human, and a quarter of sales calls convert before hang-up.
Grok Voice 3.0 Speech Model — Frequently Asked Questions
Quick answers about Grok Voice 3.0 pricing, response speed, benchmark results, and real-world production use.
What is Grok Voice 3.0?
It is a speech-to-speech model positioned as the smartest in its class, designed to complete support conversations that previously required people, with replies in under a second.
How fast does Grok Voice 3.0 respond?
Responses arrive in under one second, and τ-Voice comparisons show 40% lower latency than GPT-Live-1 (Astra).
How does it score on independent benchmarks?
It ranks first on the Speech-to-Speech Index at 86.9, scores 97% on Full Duplex Bench, 71.6% on τ-Voice, and 74% on ServiceNow's EVA-Bench.
What does Grok Voice 3.0 cost?
The Voice Agent API costs $0.08 per minute or $4.80 per hour, the same as Grok Voice 2.0, while task-level cost remains below comparable models.
Does it handle interruptions and background noise?
Yes. Full Duplex Bench, which evaluates turn-taking and interruption handling, gives it 97%, and τ-Voice covers accented speech and noisy environments.
Where is Grok Voice 3.0 used in production?
It supports millions of daily conversations in Tesla vehicles and Grok Bot's voice mode, and Starlink contact centers route 20,000 calls a day through it in multiple languages.
Start Building With Grok Voice 3.0
The Voice Agent API is available at $0.08 per minute; existing integrations pointed at grok-voice-latest switch over automatically, with no reconfiguration.