Grok Voice Think Fast 2.0

xAI · 2026 · Speech AI · USA

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A to Z

A · App: Yes
B · Built By: xAI
C · CEO & Politics: Elon Musk — Right / Republican; largest individual donor of 2024 cycle; revived America PAC with $100M+ for GOP in 2026 midterms (America Party plan shelved)
D · Date: 2026
E · Expertise: Beginner (app available)
F · Free Tier: Yes
G · Generates: Text only
H · Deployment: Cloud (xAI Speech to Speech API)
I · Inputs: Text
J · Jurisdiction: USA
K · Key Staffers: Part of SpaceX (Elon Musk, CEO); Gwynne Shotwell (SpaceX President)
L · Languages: English-primary
M · Model Type: Speech AI
N · Safety Issues: None reported
O · Open Source: Proprietary
P · Pricing: $0.08 per minute of audio.
Q · AIDb Rating: 8/10 · AIDb v2.0 (curated): Capability 9/10 · Currency 10/10 · Access 5.5/10 · Significance 6/10 → 8.22
R · What Makes It Special: Grok Voice 2.0 (July 29, 2026), xAI's speech-to-speech model that reasons while it speaks: it scored 82.9% on Artificial Analysis's Speech-to-Speech Quality Index (GPT-Realtime-2.1: 79.1%) and 56.5% on τ-voice Bench, cut time to first audio to 0.70s from 1.25s, and with 60% fewer reasoning tokens usually fires tool calls before its first sentence ends. Starlink A/B tests lifted sales conversion and support containment; it cost $0.08 a minute and gave way to Grok Voice 3.0 on October 14, 2026.
S · Stock / Status: Public via SpaceX (Nasdaq: SPCX, IPO Jun 12, 2026); $145 (SPCX, Sep 28, 2026)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: Yes
W · Weights: API only
X · X Handle: @SpaceXSI
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Proprietary Speech AI from xAI, released 2026.

Data completeness 88% · Last verified 2026-08-09 · Primary source ↗

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“Grok Voice Think Fast 2.0.” AIDb — The AI Database. Verified 2026-08-09. https://theaidatabase.com/m/xai-grok-voice-think-fast-2.html

Grok Voice Think Fast 2.0

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