Grok 4.5 from SpaceXAI: Opus-class, faster and cheaper

I’d like to share some news from the AI world: SpaceXAI has unveiled Grok 4.5 — the company’s first release since going public.

The model is positioned as a practical tool for coding, apps, office tasks, research and writing.

The company also highlights improved efficiency: according to SpaceXAI, it offers better token efficiency and lower costs than several top-tier models.

Elon Musk described Grok 4.5 as an Opus-class model and said it is faster and cheaper while delivering a similar level of capability.

Why it matters: the AI market is competing not only on performance, but increasingly on usage cost.

What do you think matters more today — model quality or token cost?

#AI #Grok #SpaceXAI #HackerNews