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Grok Voice 3.0

xAI's speech-to-speech models for real-time voice agents with tool use, served through its Realtime-compatible API.

  • xAI
  • Closed
  • Released 14 Oct 2026

Official page

Where it ranks

  • S
    Voice agents
    Models · Cloud · 1,070 on Artificial Analysis Speech Agent Arena (models)

Facts

Vendor
xAI
Family
Grok Voice
Released
14 Oct 2026
Weights
Closed: API and apps only
License
proprietary
API price
$0.08 per minute of audio (Official realtime speech-to-speech price for grok-voice-latest.)
Last verified
18 Oct 2026

Price from docs.x.ai, 18 Oct 2026.

Benchmark results

BenchmarkResultEntry on the leaderboardAs ofSource
Artificial Analysis Big Bench Audio (speech reasoning)98.5%Grok Voice 3.0
Big Bench Audio speech reasoning (audio in, audio out); embedded value 0.985 as percent; no last-updated date shown.
18 Oct 2026artificialanalysis.ai
Artificial Analysis Speech Agent Arena (models)1,070Grok Voice 3.0
Speech Agent Arena Elo (overall slice; GPT-Realtime-1.5 anchored at 1000), rank 3 of 27, 637 appearances, 95% CI 1041.88-1098.79; embedded data on the speech-to-speech page.
18 Oct 2026artificialanalysis.ai
Artificial Analysis Speech to Speech Index87Grok Voice 3.0
AA-Speech to Speech Index (weighted: Big Bench Audio, tau-Voice agentic, arena preference, task success); raw embedded value, page shows it rounded; no last-updated date shown.
18 Oct 2026artificialanalysis.ai

Where you can use it

Earlier versions

  • Grok Voice 2.0 · —
  • Grok Voice 1.0 · —

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Alternatives to Grok Voice 3.0

Sources