Remy Reference/Models/Realtime/Grok Voice (Think Fast 2.0)

Grok Voice (Think Fast 2.0)

Grok Voice (Think Fast 2.0), a realtime voice model from X.ai.

model: "grok-voice-think-fast-2.0"

X.ai·Released August 2026

Pricing

Specifications

Parameters

Model options, set where this model is selected.

Parameter	Type	Default	Range / options
`voice`	Select	eve	evealtairaraatlasauroracarina+22

Voices · 28

Eve

Altair

Ara

Atlas

Aurora

Carina

Castor

Celeste

Cosmo

Helios

Helix

Iris

Kepler

Leo

Liora

Lumen

Luna

Lux

Naksh

Orion

Perseus

Rex

Rigel

Sal

Sirius

Ursa

Zagan

Zenith

Use this model

// Realtime models power a live voice interface, set as the
// voice engine in the interface configuration.
// Model id: 0