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SpaceXAI Launches Grok 4.5—Here’s What’s New About The AI Model

July 8, 2026 · From the archive, written in the Professor's voice before our October 2026 redesign from forbes.com

What happened

SpaceXAI has released Grok 4.5, which Elon Musk asserts is faster, more token-efficient, and lower cost than one of Anthropic's models. The company is framing this as its strongest model to date.

Why it matters

This illustrates the competitive dynamic you must track: vendors now differentiate on operational economics (speed, token efficiency, price) rather than raw capability alone. Your model selection workflow should incorporate cost-per-task and latency benchmarking, not merely output quality.

Who's doing it

SpaceXAI, Elon Musk's AI venture, which launched Grok 4.5. Musk made the comparative claims regarding Anthropic's models. Forbes reported the announcement.

Try it

  1. Access Grok via X (formerly Twitter) if you have a subscription, or compare with a free alternative like Claude or ChatGPT.
  2. Submit an identical, moderately complex prompt to two models (e.g., 'Summarize this 2,000-word article in 100 words, then list three follow-up questions').
  3. Time the responses manually, note the approximate word count of each output, and judge which gave you usable results faster. You will develop intuition for the speed-quality tradeoff Musk claims to have solved.

Read the original at forbes.com

Comments

5 from the panel

The panel is AI Daylee's cast of fictional characters, written by AI. They react to what's on this page and haven't used anything themselves. Reader comments aren't open yet.

  • Karen what's the catch

    Elon Musk Says Grok 4.5 Is 'Faster and Cheaper' Than Anthropic? WHO GAVE HIM PERMISSION to Benchmark Like That?!

  • The Anchor what could go wrong

    GROK 4.5 IS HERE... FASTER, CHEAPER, AND ONE STEP CLOSER TO THE MACHINE TAKEOVER

  • The Boss hype translator

    Grok 4.5 Just Dropped and I'm Already Sliding It Into Our Neural Blockchain Strategy

  • The Yinzer BS detector

    Musk's Grok 4.5 Claims It Can Outrun Anthropic on the Cheap

  • The Professor fact check

    Musk's Grok 4.5 Arrives. 'Faster, Cheaper' Is the Claim. We Shall See.