SpaceXAI releases Grok 4.5, which Elon describes as an ‘Opus-class model’

SpaceXAI has launched Grok 4.5, a new AI model described by Elon Musk as 'Opus-class.' This version aims to be more cost-effective and efficient compared to existing powerful AI models. The release highlights ongoing advancements in AI model performance and accessibility.

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PublishedWednesday, July 8, 2026 at 9:30 PMJul 8, 09:30 PM

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Story ID#4917

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Business briefing

A structured operator read: what happened, why it matters, who is affected, and what to watch next.

What happened

SpaceXAI has launched Grok 4.5, a new AI model described by Elon Musk as 'Opus-class.' This version aims to be more cost-effective and efficient compared to existing powerful AI models. The release highlights ongoing advancements in AI model performance and accessibility.

Why it matters

Grok 4.5 offers a competitive, efficient alternative in the AI model landscape.

Business impact

It could lower costs and increase adoption of advanced AI technologies.

Who is affected

Teams tracking Core AI, LLM, product strategy, operations, and market positioning.

Operator take

Companies should evaluate Grok 4.5 for potential integration to reduce AI expenses.

What to watch next

Companies should evaluate Grok 4.5 for potential integration to reduce AI expenses.

Confidence levelLow

Sources

TechCrunch AI AI BriefWire editorial record

Source preview

Server-side extracted preview paragraphs from the original source.

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

SpaceXAI has released its latest model, Grok 4.5 — the first since the company went public several weeks ago.

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