# SpaceXAI launches Grok 4.5, Elon Musk calls it 'Opus-class'

SpaceXAI released Grok 4.5, a new AI model that Elon Musk describes as 'Opus-class,' indicating top-tier performance. The launch signals intensified competition in the AI industry, as Musk positions the model against leading counterparts from rivals.

**Importance:** 3/5

## Sources

### Technology
- [TechCrunch](https://techcrunch.com/2026/07/08/spacexai-releases-grok-4-5-which-elon-describes-as-an-opus-class-model/) — Wed, 08 Jul 2026 19:30:16 +0000