---
title: "SpaceXAI releases Grok 4.5, which Elon describes as an ‘Opus-class model’ — Stuff That Spins"
description: "Elon Musk's tech company released the newest version of Grok on Wednesday, promising a cheaper, more efficient alternative to other powerful AI models."
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date: "2026-07-08T19:30:16+00:00"
modified: "2026-07-09T00:02:26.430581+00:00"
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# SpaceXAI releases Grok 4.5, which Elon describes as an ‘Opus-class model’

**Source:** Unknown  
**Published:** July 8, 2026  
**Original:** https://techcrunch.com/2026/07/08/spacexai-releases-grok-4-5-which-elon-describes-as-an-opus-class-model/  

## On this page

- [Overview](#overview)

<a id="overview"></a>

## Overview

Elon Musk's tech company released the newest version of Grok on Wednesday, promising a cheaper, more efficient alternative to other powerful AI models.

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