---
title: "Grok Voice 3.0 answers in under a second, says SpaceXSI"
description: "SpaceXSI, the Grok maker formerly called xAI and now part of SpaceX, released Grok Voice 3.0, a voice model that replies in under a second and copes with…"
author: Graham
date: 2026-10-14
url: https://powerofai.ca/news/2026-10-14-grok-voice-3
---

# Grok Voice 3.0 answers in under a second, says SpaceXSI

SpaceXSI, the Grok maker formerly called xAI and now part of SpaceX, released Grok Voice 3.0, a voice model that replies in under a second and copes with…

October 14, 2026 · Launch

SpaceXSI, the Grok maker formerly called xAI and now part of SpaceX, released Grok Voice 3.0, a voice model that replies in under a second and copes with interruptions. The company says it ranks first on Artificial Analysis’s speech-to-speech index. It powers Grok’s voice mode and Tesla cars, and businesses can build phone agents with it for 8 US cents a minute. SpaceXSI says it already handles about 20,000 Starlink support calls a day.

**Why it matters to you:** Talking to an AI on the phone is becoming normal, and for small businesses an AI that answers calls is getting cheaper and better.

**Try this:** Use voice mode in Grok, ChatGPT or Gemini to rehearse a tricky conversation out loud.

> Role-play a customer who is upset about a late delivery. I run the business. Interrupt me if I ramble, then tell me what I did well and what to improve.

Source: [SpaceXSI (x.ai)](https://x.ai/news/grok-voice-3)

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