# SpaceXAI ships Grok Voice 3.0, ranked No. 1 in speech-to-speech tests

> Source: <https://runtimewire.com/article/spacexai-grok-voice-3-speech-index>
> Published: 2026-10-14 17:42:13+00:00

# SpaceXAI ships Grok Voice 3.0, ranked No. 1 in speech-to-speech tests

**The $0.08-a-minute API model led Artificial Analysis's October 13th index, but placed third in its blind preference arena.**

        By [Ryan Merket](https://runtimewire.com/author/ryan-merket)
        · Published 

Primary source: [X](https://x.com/ArtificialAnlys/status/2110421964095713743)

## Why it matters

Grok Voice 3.0's top composite score strengthens SpaceXAI's case for selling voice agents to developers, but its third-place human-preference result and separately billed text input show why benchmark rank and per-minute price are only part of a deployment decision.

[SpaceXAI](https://x.ai/news/grok-voice-3), founded by [Elon Musk (@elonmusk)](https://x.com/elonmusk), released Grok Voice 3.0 on October 14th, putting its real-time speech model at the top of Artificial Analysis's composite speech-to-speech index. The model is available through SpaceXAI's [Voice API](https://x.ai/api/voice?trk=article-ssr-frontend-pulse-little-text-block) for $0.08 per minute, the same listed audio rate as its predecessor, Grok Voice 2.0.…